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CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	db00
authors	Espina, Jane J.B.
year	2002
title	Base de datos de la arquitectura moderna de la ciudad de Maracaibo 1920-1990 [Database of the Modern Architecture of the City of Maracaibo 1920-1990]
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 133-139
summary	Bases de datos, Sistemas y Redes 134The purpose of this report is to present the achievements obtained in the use of the technologies of information andcommunication in the architecture, by means of the construction of a database to register the information on the modernarchitecture of the city of Maracaibo from 1920 until 1990, in reference to the constructions located in 5 of Julio, Sectorand to the most outstanding planners for its work, by means of the representation of the same ones in digital format.The objective of this investigation it was to elaborate a database for the registration of the information on the modernarchitecture in the period 1920-1990 of Maracaibo, by means of the design of an automated tool to organize the it datesrelated with the buildings, parcels and planners of the city. The investigation was carried out considering three methodologicalmoments: a) Gathering and classification of the information of the buildings and planners of the modern architectureto elaborate the databases, b) Design of the databases for the organization of the information and c) Design ofthe consultations, information, reports and the beginning menu. For the prosecution of the data files were generated inprograms attended by such computer as: AutoCAD R14 and 2000, Microsoft Word, Microsoft PowerPoint and MicrosoftAccess 2000, CorelDRAW V9.0 and Corel PHOTOPAINT V9.0.The investigation is related with the work developed in the class of Graphic Calculation II, belonging to the Departmentof Communication of the School of Architecture of the Faculty of Architecture and Design of The University of the Zulia(FADLUZ), carried out from the year 1999, using part of the obtained information of the works of the students generatedby means of the CAD systems for the representation in three dimensions of constructions with historical relevance in themodern architecture of Maracaibo, which are classified in the work of The Other City, generating different types ofisometric views, perspectives, representations photorealistics, plants and facades, among others.In what concerns to the thematic of this investigation, previous antecedents are ignored in our environment, and beingthe first time that incorporates the digital graph applied to the work carried out by the architects of “The Other City, thegenesis of the oil city of Maracaibo” carried out in the year 1994; of there the value of this research the field of thearchitecture and computer science. To point out that databases exist in the architecture field fits and of the design, alsoweb sites with information has more than enough architects and architecture works (Montagu, 1999).In The University of the Zulia, specifically in the Faculty of Architecture and Design, they have been carried out twoworks related with the thematic one of database, specifically in the years 1995 and 1996, in the first one a system wasdesigned to visualize, to classify and to analyze from the architectural point of view some historical buildings of Maracaiboand in the second an automated system of documental information was generated on the goods properties built insidethe urban area of Maracaibo. In the world environment it stands out the first database developed in Argentina, it is the database of the Modern andContemporary Architecture “Datarq 2000” elaborated by the Prof. Arturo Montagú of the University of Buenos Aires. The general objective of this work it was the use of new technologies for the prosecution in Architecture and Design (MONTAGU, Ob.cit). In the database, he intends to incorporate a complementary methodology and alternative of use of the informationthat habitually is used in the teaching of the architecture. When concluding this investigation, it was achieved: 1) analysis of projects of modern architecture, of which some form part of the historical patrimony of Maracaibo; 2) organized registrations of type text: historical, formal, space and technical data, and graph: you plant, facades, perspectives, pictures, among other, of the Moments of the Architecture of the Modernity in the city, general data and more excellent characteristics of the constructions, and general data of the Planners with their more important works, besides information on the parcels where the constructions are located, 3)construction in digital format and development of representations photorealistics of architecture projects already built. It is excellent to highlight the importance in the use of the Technologies of Information and Communication in this investigation, since it will allow to incorporate to the means digital part of the information of the modern architecturalconstructions that characterized the city of Maracaibo at the end of the XX century, and that in the last decades they have suffered changes, some of them have disappeared, destroying leaves of the modern historical patrimony of the city; therefore, the necessity arises of to register and to systematize in digital format the graphic information of those constructions. Also, to demonstrate the importance of the use of the computer and of the computer science in the representation and compression of the buildings of the modern architecture, to inclination texts, images, mapping, models in 3D and information organized in databases, and the relevance of the work from the pedagogic point of view,since it will be able to be used in the dictation of computer science classes and history in the teaching of the University studies of third level, allowing the learning with the use in new ways of transmission of the knowledge starting from the visual information on the part of the students in the elaboration of models in three dimensions or electronic scalemodels, also of the modern architecture and in a future to serve as support material for virtual recoveries of some buildings that at the present time they don’t exist or they are almost destroyed. In synthesis, the investigation will allow to know and to register the architecture of Maracaibo in this last decade, which arises under the parameters of the modernity and that through its organization and visualization in digital format, it will allow to the students, professors and interested in knowing it in a quicker and more efficient way, constituting a contribution to theteaching in the history area and calculation. Also, it can be of a lot of utility for the development of future investigation projects related with the thematic one and restoration of buildings of the modernity in Maracaibo.
keywords	database, digital format, modern architecture, model, mapping
series	SIGRADI
email
last changed	2016/03/10 09:51

_id	a23f
authors	Jordan, J. Peter (Ed.)
year	1990
title	From Research to Practice [Conference Proceedings]
source	ACADIA Conference Proceedings / Big Sky (Montana - USA) 4-6 October 1990, 231 p.
doi	https://doi.org/10.52842/conf.acadia.1990
summary	For the tenth time in as many years, the Association for Computer-Aided Design in Architecture (ACADIA) has invited architectural educators and professionals to discuss their activities and interests related to computer-aided architectural design. This annual meeting has grown from a small group representing a handful of schools to a conference with international participation. For the fifth time, the papers presented at this annual conference have been collected and published in a bound volume as the conference proceedings. In organizing these meetings, ACADIA must be viewed has having firmly established itself as a valuable forum for those who are interested and active in this area. Moreover, the proceedings of these conferences have become an important record for documenting the progress of ideas and activities in this field. This organization and its annual conferences have been a critical influence on my own professional development. The first conference I attended, ACADIA '86, confirmed a nagging suspicion that courses in computer-aided design (CAD) offered at the university level should be more than vendor training. Papers and conversations at subsequent conferences have reinforced this conviction and strengthened my commitment to CAD education which does more than convey electronic drawing technology. At the same time, I have been frustrated at the apparent lack of communication between those involved in these activities in architectural education and the average professional practice. With some notable exceptions, architects are only beginning to make basic computer-aided drafting pay for itself. In many small offices, "The CAD Computer" remains more decoration and status symbol than useful tool. While it can be argued that the economics of computer-aided drafting have only recently become attractive, it must be admitted that many members of ACADIA are actively involved in the development and use of computer applications which are significantly more challenging. In the short run, most of these activities will go largely unnoticed by the community of practicing architects. This situation raises a number of questions on the value of the work produced by members of ACADIA. One can (and many do) challenge the worth of "design" research produced by academia to those in professional practice. However, it is a fundamental mistake to insist that such work be of immediate and direct relevance to the profession. In fact, some presentations at the ACADIA conferences have focused solely on the pedagogical environment (which may be of some intellectual interest) but do not even attempt to address professional design issues. Other work may serve as the basis for further activities which may result in useful applications at some future point in time. Such work is strategic in nature and should not be expected to bear fruit for many years. These are the *natural" products of a university environment and, indeed, may be what the university does best. Still, design professionals remain indifferent (if not somewhat hostile) to these endeavors. The central dilemma resides in the ongoing debate about the fundamental goals of professional education. A number of design professionals believe that architectural education should follow more of a “trade school” model where a professional degree program becomes solely a process of acquiring (and practicing) a set of skills which are directly and immediately useful upon graduation. Today these people stiR closely examine the drafting skill of any recent graduate, but they are also likely to demanding expertise on AutoCAD. It is my view that this position tends to deprecate the image of architects and depreciate the economic status of the profession. On the other hand, there is a similar minority in architectural academia who teach because they are unable or unwilling to deal with the very real complexities and challenges of professional practice. These instructors tend to focus on obscure theory and academic credentials while discounting the importance of professional development. For most who participate in this discussion, it is becoming increasingly clear that professional competency must be founded on an effective marriage of intellectual theory and practical expertise. This must lead to the conclusion that CAD research must recognize and give serious consideration to the professional agenda in a substantive manner without abandoning those activities which deal with strategic and pedagogical issues.
series	ACADIA
email
more	http://www.acadia.org
last changed	2022/06/07 07:49

_id	c12b
authors	Sakr, Yasser H. and Johnson, Robert E.
year	1991
title	Computer-Aided Architectural Design Strategies: One Size Does Not Fit All
source	Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 15-31
doi	https://doi.org/10.52842/conf.acadia.1991.015
summary	The practice of architecture is in the midst of significant change and an increasingly uncertain future. Socio-economic factors external to the profession are forcing firms to develop new strategies for delivering design services. Overlaying these external changes is the uncertainty resulting from the inevitable introduction of information technology, which is only beginning to have an impact on the profession. Some advocates see the emergence of a new form of design firm -the computerized design firm - as an intelligent organization structured around electronic work groups with powerful computation and communications tools (Catalano 1990). On the other hand, many practitioners still see CADD as an expensive technology whose primary result leads to an increase in overhead costs. But some practitioners and researchers (Coyne, 1991) recognize both the potential and, problems that computer-aided design presents to the profession. This research presents a framework for understanding how changing information technology might be appropriately integrated into the design firm. It argues that design is an increasingly diverse enterprise, and that this diversity must be understood in order to effectively integrate information technology. The study is divided into three sections. The first section develops an overview of major social, economic, and structural changes within the profession. The second section discusses two alternative approaches that have been utilized to integrate information technology into firms. The third part presents a framework for understanding how information technology may have an impact on strategies for structuring and organizing architectural firms.
series	ACADIA
last changed	2022/06/07 07:56

_id	b565
authors	Yessios, Chris I. (Ed.)
year	1989
title	New Ideas and Directions for the 1990’s [Conference Proceedings]
source	ACADIA Conference Proceedings / Gainsville (Florida - USA) 27-29 October 1989, 262 p.
doi	https://doi.org/10.52842/conf.acadia.1989
summary	About a year ago, a comment of mine to Bob Johnson that recent Acadia Conferences appeared to be bypassing some of the real issues of CAAD and that the attendants seemed to be missing the opportunity to debate and to argue, landed me a request to be the Technical Chair for this Acadia 89. In spite of an expected heavy load this past year, I could not refuse. I certainly did not realize at the time what it would take to put the technical program of this Conference together: two "calls" for papers, many- many phone calls and the gracious acceptance of three invited speakers and twelve panelists. In response to a recommendation by Pamela Bancroft, last year's Technical Chair, the first call for papers had a deadline which was by about a month earlier than it has been in recent years. This must have found our membership unprepared and generated only thirteen submissions. A second call was issued with the end of July as a deadline. It generated another eleven submissions. Out of that total of twenty-four papers, ten were selected and are presented in this Conference. The selection process was based strictly on averaging the grades given by each of the three referees who blindly reviewed each paper. The names of the reviewers have been listed earlier in this volume and I wish to take this opportunity to wholeheartedly thank them. In most cases the reviewers offered extensive comments which were returned to the authors and helped them improve their papers. Many of the papers have actually been rewritten in response to the reviewers' comments and what are included in these Proceedings are substantially improved versions of the papers originally submitted. This is the way it is supposed to be, but could not be done without the excellent response by the authors. I"hey deserve our sincere thanks. It must be noted that the reviewers were not always in agreement, which should tell us something about the diverse orientations of our members. In the case of at least three papers, one reviewer gave a 0 or 1 (very low) when another gave a 9 or 10 (very high). In these cases the third reviewer gave the deciding grade. In no case was there a need for me to break a tie. Under normal circumstances, these "controversial" papers should have gone out for another cycle of reviews. Time did not permit to do so. However, I feel confident that the papers which have been selected deserve to be heard. It may be worth speculating why it took two calls to generate only 24 submissions when last year we had 42. There are a number of factors which must have had an effect. First of all, the early deadline. Secondly, the theme of this year's Conference was more focussed than it has been in the recent past. In addition, it was quite challenging. Even though the calls also encouraged submissions in areas other than the central theme, they discouraged contributions which might be redundant with past presentations. This must have filtered out presentations about "CAD in the studio" which did not have an orientation distinctively different from what everybody else is doing. Last, but possibly the most decisive factor must have been that, this year, Acadia was in competition with the Futures Conference. It does not take much to observe that more than half of the presentations at the CAAD Futures Conference were given by active Acadia members. Acadia should by all means be delighted that the bi-annual Futures took place in the States this year, but it certainly made our organizational task harder. As a matter of fact, as a record of CAAD happenings in 1989, 1 believe the Proceedings of the two Conferences complement each other and should be read as a pair.
series	ACADIA
email
more	http://www.acadia.org
last changed	2022/06/07 07:49

_id	sigradi2006_e131c
id	sigradi2006_e131c
authors	Ataman, Osman
year	2006
title	Toward New Wall Systems: Lighter, Stronger, Versatile
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 248-253
summary	Recent developments in digital technologies and smart materials have created new opportunities and are suggesting significant changes in the way we design and build architecture. Traditionally, however, there has always been a gap between the new technologies and their applications into other areas. Even though, most technological innovations hold the promise to transform the building industry and the architecture within, and although, there have been some limited attempts in this area recently; to date architecture has failed to utilize the vast amount of accumulated technological knowledge and innovations to significantly transform the industry. Consequently, the applications of new technologies to architecture remain remote and inadequate. One of the main reasons of this problem is economical. Architecture is still seen and operated as a sub-service to the Construction industry and it does not seem to be feasible to apply recent innovations in Building Technology area. Another reason lies at the heart of architectural education. Architectural education does not follow technological innovations (Watson 1997), and that “design and technology issues are trivialized by their segregation from one another” (Fernandez 2004). The final reason is practicality and this one is partially related to the previous reasons. The history of architecture is full of visions for revolutionizing building technology, ideas that failed to achieve commercial practicality. Although, there have been some adaptations in this area recently, the improvements in architecture reflect only incremental progress, not the significant discoveries needed to transform the industry. However, architectural innovations and movements have often been generated by the advances of building materials, such as the impact of steel in the last and reinforced concrete in this century. There have been some scattered attempts of the creation of new materials and systems but currently they are mainly used for limited remote applications and mostly for aesthetic purposes. We believe a new architectural material class is needed which will merge digital and material technologies, embedded in architectural spaces and play a significant role in the way we use and experience architecture. As a principle element of architecture, technology has allowed for the wall to become an increasingly dynamic component of the built environment. The traditional connotations and objectives related to the wall are being redefined: static becomes fluid, opaque becomes transparent, barrier becomes filter and boundary becomes borderless. Combining smart materials, intelligent systems, engineering, and art can create a component that does not just support and define but significantly enhances the architectural space. This paper presents an ongoing research project about the development of new class of architectural wall system by incorporating distributed sensors and macroelectronics directly into the building environment. This type of composite, which is a representative example of an even broader class of smart architectural material, has the potential to change the design and function of an architectural structure or living environment. As of today, this kind of composite does not exist. Once completed, this will be the first technology on its own. We believe this study will lay the fundamental groundwork for a new paradigm in surface engineering that may be of considerable significance in architecture, building and construction industry, and materials science.
keywords	Digital; Material; Wall; Electronics
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ijac20064408
id	ijac20064408
authors	Ataman, Osman; Rogers, John; Ilesanmi, Adesida
year	2006
title	Redefining the Wall: Architecture, Materials and Macroelectronics
source	International Journal of Architectural Computing vol. 4 - no. 4, pp. 125-136
summary	As a principle element of architecture, technology has allowed for the wall to become an increasingly dynamic component of the built environment. The traditional connotations and objectives related to the wall are being redefined: static becomes fluid, opaque becomes transparent, barrier becomes filter and boundary becomes borderless. Combining smart materials, intelligent systems, engineering, and art can create a component that does not just support and define but significantly enhances the architectural space. This paper presents an ongoing research project about the development of a new class of architectural wall system by incorporating distributed sensors and macroelectronics directly into the building environment. This type of composite, which is a representative example of an even broader class of smart architectural material, has the potential to change the design and function of an architectural structure or living environment. As of today, this kind of composite does not exist. Once completed, this will be the first technology of its own.
series	journal
more	http://www.ingentaconnect.com/content/mscp/ijac/2006/00000004/00000004/art00009
last changed	2007/03/04 07:08

_id	2aca
authors	Faucher, Didier and Nivet, Marie-Laure
year	2000
title	Playing with design intents: integrating physical and urban constraints in CAD
source	Automation in Construction 9 (1) (2000) pp. 93-105
summary	Our work deals with the exploration of a universe of forms that satisfy some design intents. That is, we substitute a "generate and test" approach for a declarative approach in which an object is created from its properties. In this paper we present an original method that takes into account design intents relative to sunlight, visibility and urban regulation. First of all we study how current CAD tools have considered these properties until now. Our conclusion is that the classical design/simulation/analysis process does not suit design practices, especially in the early stages. We think that an improved CAD system should offer the architect the option of manipulating abstract information such as design intents. We define an intent as a conceptual expression of constraints having an influence on the project. For instance, a visual intent will be stated with no reference to vision geometry: "from this place, I want to see the front of the new building". We show how to represent each of these constraints with a 3D volume associated to some characteristics. If some solutions exist, we are sure that they are included in these volumes. For physical phenomena we compute the volume geometry using the principles of inverse simulation. In the case of urban regulation we apply deduction rules. Design intents are solved by means of geometrical entities that represent openings or obstructions in the project. Computing constraint volumes is a way of guiding the architect in his exploration of solutions. Constraint volumes are new spaces that can restore the link between form and phenomenon in a CAD tool. Our approach offers the designer the possibility of manipulating design intents.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	a114
authors	Faucher, Didier and Nivet, Marie-Laure
year	1998
title	Playing with Design Intent: Integration of Physical and Urban Constraints in CAD
source	Digital Design Studios: Do Computers Make a Difference? [ACADIA Conference Proceedings / ISBN 1-880250-07-1] Québec City (Canada) October 22-25, 1998, pp. 118-137
doi	https://doi.org/10.52842/conf.acadia.1998.118
summary	Our work deals with the exploration of a universe of forms that satisfy some design intents. That is, we substitute a “generate and test” approach for a declarative approach in which an object is created from its properties. In this paper we present an original method that takes into account design intents relative to sunlight, visibility and urban regulation. First of all we study how current CAD tools have considered these properties until now. Our conclusion is that the classical design / simulation / analysis process does not suit design practices, especially in the early stages. We think that an improved CAD system should offer the architect the option of manipulating abstract information such as design intents. We define an intent as a conceptual expression of constraints having an influence on the project. For instance, a visual intent will be stated with no reference to vision geometry: “ from this place, I want to see the front of the new building”. We show how to represent each of these constraints with a 3D volume associated to some characteristics. If some solutions exist, we are sure that they are included in these volumes. For physical phenomena we compute the volume geometry using the principles of inverse simulation. In the case of urban regulation we apply deduction rules. Design intents are solved by means of geometrical entities that represent openings or obstructions in the project. Computing constraint volumes is a way of guiding the architect in his exploration of solutions. Constraint volumes are new spaces that can restore the link between form and phenomenon in a CAD tool. Our approach offers the designer the possibility of manipulating design intents.
series	ACADIA
email
last changed	2022/06/07 07:55

_id	2068
authors	Frazer, John
year	1995
title	AN EVOLUTIONARY ARCHITECTURE
source	London: Architectural Association
summary	In "An Evolutionary Architecture", John Frazer presents an overview of his work for the past 30 years. Attempting to develop a theoretical basis for architecture using analogies with nature's processes of evolution and morphogenesis. Frazer's vision of the future of architecture is to construct organic buildings. Thermodynamically open systems which are more environmentally aware and sustainable physically, sociologically and economically. The range of topics which Frazer discusses is a good illustration of the breadth and depth of the evolutionary design problem. Environmental Modelling One of the first topics dealt with is the importance of environmental modelling within the design process. Frazer shows how environmental modelling is often misused or misinterpreted by architects with particular reference to solar modelling. From the discussion given it would seem that simplifications of the environmental models is the prime culprit resulting in misinterpretation and misuse. The simplifications are understandable given the amount of information needed for accurate modelling. By simplifying the model of the environmental conditions the architect is able to make informed judgments within reasonable amounts of time and effort. Unfortunately the simplications result in errors which compound and cause the resulting structures to fall short of their anticipated performance. Frazer obviously believes that the computer can be a great aid in the harnessing of environmental modelling data, providing that the same simplifying assumptions are not made and that better models and interfaces are possible. Physical Modelling Physical modelling has played an important role in Frazer's research. Leading to the construction of several novel machine readable interactive models, ranging from lego-like building blocks to beermat cellular automata and wall partitioning systems. Ultimately this line of research has led to the Universal Constructor and the Universal Interactor. The Universal Constructor The Universal Constructor features on the cover of the book. It consists of a base plug-board, called the "landscape", on top of which "smart" blocks, or cells, can be stacked vertically. The cells are individually identified and can communicate with neighbours above and below. Cells communicate with users through a bank of LEDs displaying the current state of the cell. The whole structure is machine readable and so can be interpreted by a computer. The computer can interpret the states of the cells as either colour or geometrical transformations allowing a wide range of possible interpretations. The user interacts with the computer display through direct manipulation of the cells. The computer can communicate and even direct the actions of the user through feedback with the cells to display various states. The direct manipulation of the cells encourages experimentation by the user and demonstrates basic concepts of the system. The Universal Interactor The Universal Interactor is a whole series of experimental projects investigating novel input and output devices. All of the devices speak a common binary language and so can communicate through a mediating central hub. The result is that input, from say a body-suit, can be used to drive the out of a sound system or vice versa. The Universal Interactor opens up many possibilities for expression when using a CAD system that may at first seem very strange.However, some of these feedback systems may prove superior in the hands of skilled technicians than more standard devices. Imagine how a musician might be able to devise structures by playing melodies which express the character. Of course the interpretation of input in this form poses a difficult problem which will take a great deal of research to achieve. The Universal Interactor has been used to provide environmental feedback to affect the development of evolving genetic codes. The feedback given by the Universal Interactor has been used to guide selection of individuals from a population. Adaptive Computing Frazer completes his introduction to the range of tools used in his research by giving a brief tour of adaptive computing techniques. Covering topics including cellular automata, genetic algorithms, classifier systems and artificial evolution. Cellular Automata As previously mentioned Frazer has done some work using cellular automata in both physical and simulated environments. Frazer discusses how surprisingly complex behaviour can result from the simple local rules executed by cellular automata. Cellular automata are also capable of computation, in fact able to perform any computation possible by a finite state machine. Note that this does not mean that cellular automata are capable of any general computation as this would require the construction of a Turing machine which is beyond the capabilities of a finite state machine. Genetic Algorithms Genetic algorithms were first presented by Holland and since have become a important tool for many researchers in various areas.Originally developed for problem-solving and optimization problems with clearly stated criteria and goals. Frazer fails to mention one of the most important differences between genetic algorithms and other adaptive problem-solving techniques, ie. neural networks. Genetic algorithms have the advantage that criteria can be clearly stated and controlled within the fitness function. The learning by example which neural networks rely upon does not afford this level of control over what is to be learned. Classifier Systems Holland went on to develop genetic algorithms into classifier systems. Classifier systems are more focussed upon the problem of learning appropriate responses to stimuli, than searching for solutions to problems. Classifier systems receive information from the environment and respond according to rules, or classifiers. Successful classifiers are rewarded, creating a reinforcement learning environment. Obviously, the mapping between classifier systems and the cybernetic view of organisms sensing, processing and responding to environmental stimuli is strong. It would seem that a central process similar to a classifier system would be appropriate at the core of an organic building. Learning appropriate responses to environmental conditions over time. Artificial Evolution Artificial evolution traces it's roots back to the Biomorph program which was described by Dawkins in his book "The Blind Watchmaker". Essentially, artificial evolution requires that a user supplements the standard fitness function in genetic algorithms to guide evolution. The user may provide selection pressures which are unquantifiable in a stated problem and thus provide a means for dealing ill-defined criteria. Frazer notes that solving problems with ill-defined criteria using artificial evolution seriously limits the scope of problems that can be tackled. The reliance upon user interaction in artificial evolution reduces the practical size of populations and the duration of evolutionary runs. Coding Schemes Frazer goes on to discuss the encoding of architectural designs and their subsequent evolution. Introducing two major systems, the Reptile system and the Universal State Space Modeller. Blueprint vs. Recipe Frazer points out the inadequacies of using standard "blueprint" design techniques in developing organic structures. Using a "recipe" to describe the process of constructing a building is presented as an alternative. Recipes for construction are discussed with reference to the analogous process description given by DNA to construct an organism. The Reptile System The Reptile System is an ingenious construction set capable of producing a wide range of structures using just two simple components. Frazer saw the advantages of this system for rule-based and evolutionary systems in the compactness of structure descriptions. Compactness was essential for the early computational work when computer memory and storage space was scarce. However, compact representations such as those described form very rugged fitness landscapes which are not well suited to evolutionary search techniques. Structures are created from an initial "seed" or minimal construction, for example a compact spherical structure. The seed is then manipulated using a series of processes or transformations, for example stretching, shearing or bending. The structure would grow according to the transformations applied to it. Obviously, the transformations could be a predetermined sequence of actions which would always yield the same final structure given the same initial seed. Alternatively, the series of transformations applied could be environmentally sensitive resulting in forms which were also sensitive to their location. The idea of taking a geometrical form as a seed and transforming it using a series of processes to create complex structures is similar in many ways to the early work of Latham creating large morphological charts. Latham went on to develop his ideas into the "Mutator" system which he used to create organic artworks. Generalising the Reptile System Frazer has proposed a generalised version of the Reptile System to tackle more realistic building problems. Generating the seed or minimal configuration from design requirements automatically. From this starting point (or set of starting points) solutions could be evolved using artificial evolution. Quantifiable and specific aspects of the design brief define the formal criteria which are used as a standard fitness function. Non-quantifiable criteria, including aesthetic judgments, are evaluated by the user. The proposed system would be able to learn successful strategies for satisfying both formal and user criteria. In doing so the system would become a personalised tool of the designer. A personal assistant which would be able to anticipate aesthetic judgements and other criteria by employing previously successful strategies. Ultimately, this is a similar concept to Negroponte's "Architecture Machine" which he proposed would be computer system so personalised so as to be almost unusable by other people. The Universal State Space Modeller The Universal State Space Modeller is the basis of Frazer's current work. It is a system which can be used to model any structure, hence the universal claim in it's title. The datastructure underlying the modeller is a state space of scaleless logical points, called motes. Motes are arranged in a close-packing sphere arrangement, which makes each one equidistant from it's twelve neighbours. Any point can be broken down into a self-similar tetrahedral structure of logical points. Giving the state space a fractal nature which allows modelling at many different levels at once. Each mote can be thought of as analogous to a cell in a biological organism. Every mote carries a copy of the architectural genetic code in the same way that each cell within a organism carries a copy of it's DNA. The genetic code of a mote is stored as a sequence of binary "morons" which are grouped together into spatial configurations which are interpreted as the state of the mote. The developmental process begins with a seed. The seed develops through cellular duplication according to the rules of the genetic code. In the beginning the seed develops mainly in response to the internal genetic code, but as the development progresses the environment plays a greater role. Cells communicate by passing messages to their immediate twelve neighbours. However, it can send messages directed at remote cells, without knowledge of it's spatial relationship. During the development cells take on specialised functions, including environmental sensors or producers of raw materials. The resulting system is process driven, without presupposing the existence of a construction set to use. The datastructure can be interpreted in many ways to derive various phenotypes. The resulting structure is a by-product of the cellular activity during development and in response to the environment. As such the resulting structures have much in common with living organisms which are also the emergent result or by-product of local cellular activity. Primordial Architectural Soups To conclude, Frazer presents some of the most recent work done, evolving fundamental structures using limited raw materials, an initial seed and massive feedback. Frazer proposes to go further and do away with the need for initial seed and start with a primordial soup of basic architectural concepts. The research is attempting to evolve the starting conditions and evolutionary processes without any preconditions. Is there enough time to evolve a complex system from the basic building blocks which Frazer proposes? The computational complexity of the task being embarked upon is not discussed. There is an implicit assumption that the "superb tactics" of natural selection are enough to cut through the complexity of the task. However, Kauffman has shown how self-organisation plays a major role in the early development of replicating systems which we may call alive. Natural selection requires a solid basis upon which it can act. Is the primordial soup which Frazer proposes of the correct constitution to support self-organisation? Kauffman suggests that one of the most important attributes of a primordial soup to be capable of self-organisation is the need for a complex network of catalysts and the controlling mechanisms to stop the reactions from going supracritical. Can such a network be provided of primitive architectural concepts? What does it mean to have a catalyst in this domain? Conclusion Frazer shows some interesting work both in the areas of evolutionary design and self-organising systems. It is obvious from his work that he sympathizes with the opinions put forward by Kauffman that the order found in living organisms comes from both external evolutionary pressure and internal self-organisation. His final remarks underly this by paraphrasing the words of Kauffman, that life is always to found on the edge of chaos. By the "edge of chaos" Kauffman is referring to the area within the ordered regime of a system close to the "phase transition" to chaotic behaviour. Unfortunately, Frazer does not demonstrate that the systems he has presented have the necessary qualities to derive useful order at the edge of chaos. He does not demonstrate, as Kauffman does repeatedly, that there exists a "phase transition" between ordered and chaotic regimes of his systems. He also does not make any studies of the relationship of useful forms generated by his work to phase transition regions of his systems should they exist. If we are to find an organic architecture, in more than name alone, it is surely to reside close to the phase transition of the construction system of which is it built. Only there, if we are to believe Kauffman, are we to find useful order together with environmentally sensitive and thermodynamically open systems which can approach the utility of living organisms.
series	other
type	normal paper
last changed	2004/05/22 14:12

_id	49f3
authors	Glanville, Ranulph
year	1993
title	Looking into Endoscopy - The Limitations of Evaluation in Architectural Design
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 185-193
summary	The means available to architects in their age-old task of creating (most usually, though not necessarily) buildings that do not yet exist (ie. virtual realities), can be seen as falling into two groups. Those that help us develop architectural ideas (exploring), and those that help us evaluate or test them (illustrating). In the former category, we have, for instance, the ”drawing on the back of the envelope”, the discursive brainstorm, and the design ”conversation with ourselves via paper and pencil” (the drawing strikes back). In the latter, we may include physical model building, careful (projective) drawing (including drawings that are instructions for making), mathematical and design science modelling and calculating, visualising techniques such as the rendered perspective, most CAD (computer aided design) work and architectural endoscopy. These techniques may be thought of in two ways, as Bosselman reported: the explanation (eg. the organisational plan) and the experience (eg the ”photo-realistic” perspective). Attached to these we have rules for success, such as those of ”style” (in the broad sense of the personal style that allows us to assume that we have answers to problems that have yet to appear). It should be clear even from the list above that there are many more techniques and technologies for evaluation (illustration) than for exploration (design): such is the mystery of design. It is the primary purpose of this paper to invite those involved in providing the enormous effort that has gone into making such techniques for illustration — evaluation — to consider how their efforts help with that other, and crucial, area — that of exploring: and to redress some of the balance of that effort towards exploration. For it occurs to me (as a teacher of architecture), that evaluation does not provide a course for action — it merely helps us determine what may be wrong (according to some criteria with which we choose not to argue). And, no matter how right or wrong a design may be, knowing that it is wrong doesn’t help us either modify it, or find a better initial idea. It only tells us we are not right — always assuming the evaluative model is correct; perhaps.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	caadria2007_057
id	caadria2007_057
authors	Kouide, Tahar; G. Paterson
year	2007
title	BIM as a Viable Collaborative Working Tool: A Case Study
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
doi	https://doi.org/10.52842/conf.caadria.2007.x.l1j
summary	For the majority of design practices in the construction industry the use of CAD systems have been used to merely automate hand drafting (Cohen 2003). This is the traditional way of working that has changed very little since the introduction of commercial CAD systems. These practices as means of communication are being replaced by a virtual building model environment which encapsulates all of the information for an entire construction project and thereby enables computer-supported co-operative working practices. (Newton 2003) This study aims to determine whether Building Information Modelling (BIM) can, and whether it will, replace traditional communication media as the standard in the industry for computersupported co-operative working practices in the Architecture Engineering and construction (AEC) sector. The bulk of the research comprises an extensive literature review looking at the principal reasons behind the development of BIM, the potential advantages and drawbacks of the technology, and the barriers and obstacles which inhibit its adoption as a means of computer-supported co-operative working. The findings of the study have been validated and analysed against current practice in the field through a live case study analysis of the on-going Heathrow airport Terminal 5 Project in London (UK). The Terminal 5 case study demonstrates that present software tools, although usable, still present significant implicit technical constraints to wider implementation among Small and Medium Enterprises (SMEs). The case study has also shown that in practice, the success of BIM depends just as much on the working practices and ethos of participants in the project chain as it does on the capabilities of the software itself, in particular the willingness of practitioners to change traditional working practices. The case study has shown that the present investment, in terms of time, cost, and effort required to implementing the technology means that BIM is unlikely to be adopted on small simple projects where conventional CAD is still adequate. It also highlighted that BIM tools currently available are not yet adequately developed to satisfy the requirements of the many procurement and especially contractual arrangements which presently exist and many firms will be frightened off by the unresolved legal issues which may arise from implementing BIM in their practices.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	ba6b
authors	Neuckermans, Herman
year	1986
title	The Intelligent Pencil: A framework for CAAD in Education
source	ACADIA Workshop ‘86 Proceedings - Houston (Texas - USA) 24-26 October 1986, pp. 113-128
doi	https://doi.org/10.52842/conf.acadia.1986.113
summary	Computer Aided Architectural Design in Education (CAADE) can only be meaningful if it brings meaningful answers to meaningful questions about architecture and architectural education. In the discourse about CAAD and CAADE these questions are completely absent; this can be concluded from: (1.) an absolute lack of architectural-theoretical and historical reflection, without which no architecture can exist; (2.) a frequent confusion between designing and drawing : the latter being a non neutral tool for the former; (3.) the absence of a clear understanding of the way in which architecture comes about: what are the concepts and entities an architect is working with and how does he manipulate them? (4.) no clear insights about the way architectural "design by hand" should be taught and a fortiori about the way a computer could help.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	avocaad_2001_07
id	avocaad_2001_07
authors	Stefan Wrona, Adam Gorczyca
year	2001
title	Complexity in Architecture - How CAAD can be involved to Deal with it. - "Duality"
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	“Complexity “ is for us a very ambigous notion. It may be understood in two contexts.1.Thorough solution of a problem.Complexity means full recognition of design area, followed by appropriate work. That work must be thorough and interdisciplinary – if necessary, separated to different co-operatives. These trade designers reqiure a branch coordination and – the most important- all of them must have a „common denominator”. Such as a proper CAAD platform and office standards. That will reduce costs of changes, improve an interplay between designers and somtimes enable to face up a new challenge.Nowadays architects are no longer “solitary” individualists working alone – they must concern a team – they become a member, a part of a huge design machine. “Import/export”, compatibility, interplay – these words must appear and we have to put a stress on them. How to organize work for different trade-designers? How to join in common database architectural design ,engineering design, HVAC design, electricity design, technology design, computer network design and all other trades ?...A key to solve this range of problems is in good work organization. Universal prescription does not exist, but some evergreen rules can be observed. We are going to present a scheme of work in CAAD application ALLPLAN FT v.16 with a Group manager , which starts to conquest polish market and is widely spread in Germany. “Golden rules” of ALLPLAN FT There is one database – it is placed on server. It includes all projects. There is a well-developed office standard. It must be created at the beginning of collaboration, although it is possible to improve it later. It consist of hatches, fonts, symbols, macros, materials, pen-widths, and – the most important –layers . A layer set – predefined structure divided into functional groups – e.g. drafting, text, dimensioning, architecture, HVAC, engineering, urban design, etc.That stucture is a part of an office standard – all workers use a relevant part of it. No name duplicates, no misunderstandings... If however design extends, and a new group of layers is required, it can be easily added, e.g. computer networks, fireguard systems. Administrator of ALLPLAN network defines different users and gives them different permitions of access. For example – an electrician will be able to draft on layer “electricity”, but he won’t modify anything at layer “architecture – walls”, and he won’t even see a layer “engineering- slabs”, because he doesn’t need it..At the same time our electrician will be able to see , how architect moves some walls and how HVAC moved and started to cross with his wires. Every user is able to see relevant changes, after they are saved by author. Two different users can not access at the same time the same file. That excludes inconsistent or overlapping changes . All users operate on a 3D model. While putting some data into a model, they must remember about a “Z” coordinate at work-storey. But at the same time all create a fully-integrated, synchronous database, which can be used later for bills of quantities, specifications, and – of course – for visuaisation. That method can be described as “model-centric”. To simplify complex structure of architectural object -ALLPLAN offers files. Usually one file means one storey, but at special designs it might become a functional part of a storey, or whatever you wish. Files connected with layers easy enable to separate certain structural elements, e.g. if we want to glance only at concrete slabs and columns in the building – we will turn on all files with “layer filter” – “slabs” and “columns”. ALLPLAN is of course one of possible solutions. We described it , because we use it in our workshop. It seems to be stretchy enough to face up every demand and ever-increasing complexity of current projects. The essence of the matter, however, is not a name or version of application – it is a set of features, we mentioned above, which allows to deal with EVERY project. The number of solutions is infinite.2. Increasing difficulties during design process. It may be associated with more and more installations inside of new buildings, especially some “high-tech” examples. The number of these installations increases as well as their complexity. Now buildings are full of sensors, video-screens, computer networks, safety-guard systems... Difficulties are connected with some trends in contemporary architecture, for example an organic architecture, which conceives “morphed” shapes, “moving” surfaces, “soft” solids. This direction is specially supported by modelling or CAD applications. Sometimes it is good – they allow to realize all imaginations, but often they lead to produce “unbuildable” forms, which can exist only in virtual world.Obstacles appear, when we design huge cubatures with “dense” functional scheme. Multi-purposed objects, exhibition halls, olimpic stadium at Sydney – all of them have to be stretchy, even if it requires sliding thousands pound concrete blocks! Requirements were never so high.The last reason, why designs become so complex is obvious - intensifying changes due to specific requirements of clients/developers.We could say “ signum tempori” – everything gets more and more complicated , people have to become specialists, to face up new technology. But how CAAD can help us with it? How?! We have already answered that question. Sometimes CAAD is the only way to imagine and sketch something, to visualize something, to compute a construction , to prepare a simulation... So that human must “only” interprete ready solutions. Sometimes CAAD help us to notify a problem. It works exactly in the same way, as spy-glasses does. For example – without a real-time visualization we we would have never realised (until finished!) some strange interference of solids, which have occured in the upper roof part of our new appartment-house.ConclusionsTemporary CAAD is an integral part of design process – not only as a tool, but sometimes as an inspiration. It helps to organize our work, to define problems, to filter relevant elements and to render our visions. It becomes an integral part of our senses – and that will be a real complexity in architecture...
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	2dba
id	2dba
authors	Tasli, S
year	2001
title	WHAT DOES COMPUTER AIDED DESIGN OFFER FOR PRODUCING LIVABLE BUILDINGS IN THE 21ST CENTURY?
source	Proceedings of the Livable Environments and Architecture International Congress (LIVENARCH 2001). July 4-7, 2001, Trabzon, Turkey, pp. 278-282.
summary	Designing livable buildings has always been a major concern for architects but they are often criticized on account of failing in this aim. However, this is not only due to the ignorance of the designers, but also of the complexity of the factors that are essential to design but difficult to incorporate the design process. Buildings are shaped and occupied under several dynamically changing conditions and paper-based media and conventional Computer Aided Design (CAD) tools are inefficient in representing them. This paper aims to discuss the changing role of digital media for architectural design in response to the increasing complexity of design processes. Some proposals, supported by recent technological innovations, are suggested for the future and they are compared with the conventional uses of CAD. It is claimed that in the 21st century, the main advantage of using computers will be to dynamically simulate buildings in time in highly visualized virtual environments to evaluate the future performance of proposed designs. The design model will not only look as if it were real, but it will also “behave” as if it were real so as to provide dynamic and intelligent response. The two key technologies for the development of such modeling, virtual reality and object-oriented programming are addressed and four promising application areas for near future (evaluation of user-building interaction, visualization of environmental factors, construction scheduling, and combined CAD-GIS) are discussed. Some important considerations for the development of dynamically simulated virtual models are analyzed and suggestions are made for further research.
keywords	Architectural Design, Dynamic Simulation, and Virtual Environments
series	other
type	normal paper
email
last changed	2005/12/01 16:02

_id	3e6a
authors	Wittkopf, Stephen
year	2001
title	I-Light, a webbased learning system for architectural lighting design
source	TU Darmstadt
summary	With the rising meaning of architectural lighting also the requirement at appropriate light planning rises. The possibilities of digital instruments were realized by several lamp manufacturers, which use 3D-CAD to present visualizations and use the Internet for their distribution. However in the field of universities it is important to offer instruments and methods with which the interaction of light and architecture can be learned descriptive, comprehensibly and interactively. Introductory in a theoretical section the bases of light planning and learn-educational concepts are pointed out. Parallel the state of the art in the areas of computer-aided learning and the light simulation is presented and evaluated regarding the learn-educational suitability. Thereupon an action requirement is formulated, which designates a new integration of the individual areas. It flows into the development of an interactive Web-based training system for the design with light - I-Light - whose concept and implementation in the following sections is described. In an application of examples the author points out finally, how this innovative connection of the Internet, 3D-CAD and simulation supports a better understanding of the medium light in the architecture perception. A new virtual light laboratory forms the core of this training system, in which architectural planning examples can be represented three-dimensional and changed interactively. A developed semantic scene model ensures for the fact that lighting, materials and delimitation surfaces are varied didactically appropriately and compared, so that visual effects and important interrelation can be assumed and checked. The author orients itself at the methodology by simulation and merges 3D-CAD and light simulation programs into the training system. The calculated photo-realistic picture is regarded not - as otherwise usual - as presentation material, but as interactive tools. Since 3D-CAD and light simulation programs presuppose much application knowledge, the author does not pursue to confront the user with these complex programs. He developed a new system with a Web-based graphic surface, that enables 3D-scenes to be loaded, be changed and stored easily (front-end). Furthermore it enables the remote control to an automatic, photo-realistic simulation on push of a button on an external high end render machine, that is connected via Internet, where at least all files are externally stored. For the operation of the front-end is only an average PC with a standard Webbrowser necessary. For the receiving station the author develops a new interface, which extends a standard Web server by the new possibility of storing and executing lighting simulations (back-end). The system presented by the author differs in the didactical concept and in the technical implementation from the solutions existing so far in similar areas. The interactive virtual light laboratories of the architectural planning examples represent a new beginning of Web-based learning environments. To the selected tools (HTML, Java, VRML, Web server, Lightscape) there yet exist no matured alternatives.
series	thesis:PhD
email
more	http://elib.tu-darmstadt.de/diss/000131/
last changed	2003/02/12 22:37

_id	2df1
authors	Woodbury, Robert F.
year	1986
title	Strategies for Interactive Design Systems
source	20 p. : ill. Pittsburgh, PA: Engineering Design Research Center, September, 1986. EDRC-48-02-87.
summary	An information processing model of human problem solving is used to develop strategies for the design of systems for the interactive generation of designs. Systems of this type are currently not strongly developed anywhere, nor does there exist in the literature a paradigm for their creation. Design is a task which requires different interactive support than that traditionally provided by CAD systems. In this paper, those differences are uncovered by comparison of two tasks: one, named Definition in this paper, which seems to be well supported by existing systems; and the other, the task of Design. Use of an information processing model of human problem solving shows that differences between the tasks can be found in every potentially variant portion of the model. The information processing model is again used as a framework to propose mechanisms to support design. These mechanisms act by changing the underlaying phenomena upon which the information processing model is built and thus effecting changes, either parametric or structural, in the model. The relative importance of the proposed mechanisms is discussed, leading to the conclusion that the interactive support of search is the most strategic direction for future research
keywords	design process, problem solving, research, techniques, user interface, systems
series	CADline
email
last changed	2003/06/02 13:58

_id	450c
authors	Akin, Ömer
year	1990
title	Computational Design Instruction: Toward a Pedagogy
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 302-316
summary	The computer offers enormous potential both in and out of the classroom that is realized only in limited ways through the applications available to us today. In the early days of the computer it was generally argued that it would replace the architect. When this idea became obsolete, the prevailing opinion of proponents and opponents alike shifted to the notion of the computer as merely adding to present design capabilities. This idea is so ingrained in our thinking that we still speak of "aiding" design with computers. It is clear to those who grasp the real potential of this still new technology - as in the case of many other major technological innovations - that it continues to change the way we design, rather than to merely augment or replace human designers. In the classroom the computer has the potential to radically change three fundamental ingredients: student, instruction, and instructor. It is obvious that changes of this kind spell out a commensurate change in design pedagogy. If the computer is going to be more than a passive instrument in the design studio, then design pedagogy will have to be changed, fundamentally. While the practice of computing in the studio continues to be a significant I aspect of architectural education, articulation of viable pedagogy for use in the design studio is truly rare. In this paper the question of pedagogy in the CAD studio will be considered first. Then one particular design studio taught during Fall 1988 at Carnegie Mellon University will be presented. Finally, we shall return to issues of change in the student, instruction, and instructor, as highlighted by this particular experience.
series	CAAD Futures
email
last changed	2003/11/21 15:15

_id	eb5f
authors	Al-Sallal, Khaled A. and Degelman, Larry 0.
year	1994
title	A Hypermedia Model for Supporting Energy Design in Buildings
source	Reconnecting [ACADIA Conference Proceedings / ISBN 1-880250-03-9] Washington University (Saint Louis / USA) 1994, pp. 39-49
doi	https://doi.org/10.52842/conf.acadia.1994.039
summary	Several studies have discussed the limitations of the available CAAD tools and have proposed solutions [Brown and Novitski 1987, Brown 1990, Degelman and Kim 1988, Schuman et al 1988]. The lack of integration between the different tasks that these programs address and the design process is a major problem. Schuman et al [1988] argued that in architectural design many issues must be considered simultaneously before the synthesis of a final product can take place. Studies by Brown and Novitski [1987] and Brown [1990] discussed the difficulties involved with integrating technical considerations in the creative architectural process. One aspect of the problem is the neglect of technical factors during the initial phase of the design that, as the authors argued, results from changing the work environment and the laborious nature of the design process. Many of the current programs require the user to input a great deal of numerical values that are needed for the energy analysis. Although there are some programs that attempt to assist the user by setting default values, these programs distract the user with their extensive arrays of data. The appropriate design tool is the one that helps the user to easily view the principal components of the building design and specify their behaviors and interactions. Data abstraction and information parsimony are the key concepts in developing a successful design tool. Three different approaches for developing an appropriate CAAD tool were found in the literature. Although there are several similarities among them, each is unique in solving certain aspects of the problem. Brown and Novitski [1987] emphasize the learning factor of the tool as well as its highly graphical user interface. Degelman and Kim [1988] emphasize knowledge acquisition and the provision of simulation modules. The Windows and Daylighting Group of Lawrence Berkeley Laboratory (LBL) emphasizes the dynamic structuring of information, the intelligent linking of data, the integrity of the different issues of design and the design process, and the extensive use of images [Schuman et al 19881, these attributes incidentally define the word hypermedia. The LBL model, which uses hypermedia, seems to be the more promising direction for this type of research. However, there is still a need to establish a new model that integrates all aspects of the problem. The areas in which the present research departs from the LBL model can be listed as follows: it acknowledges the necessity of regarding the user as the center of the CAAD tool design, it develops a model that is based on one of the high level theories of human-computer interaction, and it develops a prototype tool that conforms to the model.
series	ACADIA
email
last changed	2022/06/07 07:54

_id	044f
authors	Balachandran, M.B. and Gero, John S.
year	1990
title	Role of Prototypes in Integrating Expert Systems and CAD Systems
source	Berlin: Springer-Verlag, 1990. v: Design: pp. 195-211
summary	This paper describes concepts which allow the development of integrated systems that combine the two technologies of expert systems and computer-aided drafting systems. It demonstrates how an expert system can be used for evaluating and criticizing designs described using traditional CAD packages. The notion of 'prototypes' has been used to play the central role in such an integration. The development, implementation and operation issues of an integrated system, called IPEXCAD, are described
keywords	expert systems, prototypes, design, CAD, integration, drafting
series	CADline
email
last changed	2003/06/02 13:58

_id	6a30
authors	Bonn, Markus
year	1989
title	Modeling Architectural Forms through Replacement Operations
source	New Ideas and Directions for the 1990’s [ACADIA Conference Proceedings] Gainsville (Florida - USA) 27-29 October 1989, pp. 103-130
doi	https://doi.org/10.52842/conf.acadia.1989.103
summary	Replacement operations, where an element at any topological level may be replaced by another element at the same or different topological level, are defined. Their potential as design tools which may be incorporated in a CAD system is investigated and demonstrated through the experimental implementation of two such operations in MARCOS, a Modeling Architectural Compositions System. MARCOS has been written in C. It is highly interactive and runs on an Apple Macintosh IIx. The two operations which have been implemented are the face -> volume and volume -> volume replacements. They were chosen for their potential as generators of architectural forms. Examples of architectural compositions produced through the use of replacement operations are also illustrated.
series	ACADIA
email
last changed	2022/06/07 07:54

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