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 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 d7f7
authors Jeng, Hoang-Ell
year 1995
title A Dialogical Model for Participatory Design; A Computational Approach to Group Planning
source Delft University of Technology
summary In participatory design, design concepts are generated collectively through discussion, dialogical interactions, in which the interchange of normative and supporting factual descriptions builds a collective design discourse. The goal of this research is to develop a method for participatory design to support this collective, face-to-face design problem-solving, in order to increase the acceptability of the design product. Since the mid-1960s, there has been an important movement towards increasing the participation of citizens in determining their built environment. At first, the movement was associated with social-political ideologies and rhetoric. By the end of the 1970s, participatory design had become an accepted component of professional practice. The objectives of the movement became more pragmatically and more modestly focused on exchanging practical information, resolving conflicts, and supplementing design. Today, participatory design is in a new phase. Traditional participatory design methods are seen as insufficient to fulfill an increasing demand for dialogue. The point of departure of the study is the assumption that new information technologies can satisfy this demand. The method includes: (1) a group-reasoning model, (2) a dialogical system and (3) a framework for participation-based design guidelines. The group-reasoning model formulates the process of knowledge acquisition, the learning and sharing of belief systems, the generation of design alternatives and design evaluations--by which reasoning takes place dialogically. The dialogical system provides a clear description of how the information should be processed, what aspects should be paid attention to, what results can be anticipated, and when and how to control the process. The framework for participation-based design guidelines guides and structures the design process. It facilitates a reconstruction of the implicit cognitive structure which underlines dialogue and is generated through the discussion of a group.
series thesis:PhD
last changed 2003/02/12 22:37

_id 2c14
authors Sharji, E.A., Hussain, H. and Ahmad, R.E.
year 2002
title Electronic Gallery : Case Study of A New Design Approach in Malaysia
doi https://doi.org/10.52842/conf.ecaade.2002.370
source Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 370-373
summary A building comprises of more than the skin and the structural works. It is the soul that comes in the form of SPACE that is intriguing and provokes the mind. To be able to experience a building relies heavily on the spatial concept and internal lay out. How one is captured right from entering the entrance and through the layering of space, of horizontal and vertical planes and finally the euphoria, or depressed feeling that concludes the tour depending on the feeling intended (Miller, 1995). The common norm at present celebrates the outer skin and grandeur of facades. Not many include the hidden grids and fragmentation that can lead to a surprisingly good form AND space. Thus a number of them fail, in the sense of a sensuous building. ‘The circulation path can be conceived as the perceptual thread that links the spaces of a building or any series of interior or exterior spaces, together. Since we move in TIME, through SEQUENCE of SPACES, we experience a space in relation to where we’ve been, and where we anticipate going’ (Ching, 1979). This research intends to study and analyze the unconventional electronic gallery or ‘e-gallery’ as a versatile hybrid container. The focus of the research will be on documenting spaces in the e-gallery, bringing to light the unlimited possibilities that can take place in such a space.
series eCAADe
email
last changed 2022/06/07 07:59

_id e75d
authors Achten, H., Dijkstra, J., Oxman, R. and Bax, Th.
year 1995
title Knowledge-Based Systems Programming for Knowledge Intensive Teaching
doi https://doi.org/10.52842/conf.ecaade.1995.139
source Multimedia and Architectural Disciplines [Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4] Palermo (Italy) 16-18 November 1995, pp. 139-148
summary Typological design implies extensive knowledge of building types in order to design a building belonging to a building type. It facilitates the design process, which can be considered us a sequence of decisions. The paper gives an outline of a new approach in a course teaching typological knowledge through the medium of Knowledge-Based Systems programming. It demonstrates how Knowledge-Based Systems offer an appropriate structure for analysing the knowledge required to implement typological design. The class consists of third-year undergraduate students with no extensive previous programming experience. The implementation language is AutoLISP which operates in the AutoCAD environment. The building type used in the course is the office building. in order to become acquainted with both building type and programming in AutoLISP, information and instructions have been gathered and prestructured, including a worked out analysis and AutoLISP code. Office plans are generated through use of the Knowledge-Based System. They are encoded in the form of frames. At the end of the course the students will have learned the basics of Knowledge-Based Systems, have been introduced to programming these systems, have analysed and reflected upon the design process, and gained insight into a specific building type.
series eCAADe
email
more http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_18.htm
last changed 2022/06/07 07:54

_id 2a49
authors Asanowicz, Aleksander
year 1995
title Multimedia Versus Ugliness of the City
doi https://doi.org/10.52842/conf.ecaade.1995.389
source Multimedia and Architectural Disciplines [Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4] Palermo (Italy) 16-18 November 1995, pp. 389-394
summary This paper presents a method of using multimedia techniques in order to solve problems of visual pollution of city environment. It is our observation that human - inducted degradation of city environmental results not only from neglect and vandalism but also from well - intentioned but inappropriate preservation actions by uninformed designers and local administrations. Very often, a local municipality administration permit to erect an ugly, bad-fitting surroundings houses. It is usually connected with lack of informations about certain areas of a city, its features, characteristic and about present and earlier buildings. Therefore there was an experiment - a complex programme aiding the decision process as a part of the CAMUS system (Computer Aided Management of Urban Structure) which is created at Faculty of Architecture TUB. One of the integral parts of it is a block, which has been called "How would it be like to be nice around". One of the basic elements of that system is a town data base consisting of the independent knowledge - based systems, working together in a distributed computing environment. City administration will have access to each information from multimedia data-base. Multimedia is also having and impact on the effectiveness of decision process in urban planning and in our fight with ugliness of the city.

series eCAADe
email
more http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_46.htm
last changed 2022/06/07 07:54

_id aab6
authors Bermudez, Julio
year 1995
title Designing Architectural Experiences: Using Computers to Construct Temporal 3D Narratives
doi https://doi.org/10.52842/conf.acadia.1995.139
source Computing in Design - Enabling, Capturing and Sharing Ideas [ACADIA Conference Proceedings / ISBN 1-880250-04-7] University of Washington (Seattle, Washington / USA) October 19-22, 1995, pp. 139-149
summary Computers are launching us into a representational revolution that fundamentally challenges the way we have hitherto conceived and practiced architecture. This paper will explore one of its fronts: the simulation of architectural experiences. Today's off-the-shelf softwares (e.g. 3D modeling, animations, multimedia) allow us for first time in history to depict and thus approach architectural design and criticism truly experientially. What is so appealing about this is the possibility of shifting our attention from the object to the experience of the object and in so doing reconceptualizing architectural design as the design of architectural experiences. Carrying forward such a phenomenological proposition requires us to know (1) how to work with non-traditional and 'quasi-immersive' (or subject-centered) representational systems, and (2) how to construct temporal assemblages of experiential events that unfold not unlike 'architectural stories'. As our discipline lacks enough knowledge on this area, importing models from other fields appears as an appropriate starting point. In this sense, the narrative arts (especially those involved with the temporal representation of audio-visual narratives) offer us the best insights. For example, principles of cinema and storytelling give us an excellent guidance for designing architectural experiences that have a structuring theme (parti), a plot (order), unfolding episodes (rhythm), and special events (details). Approaching architecture as a temporal 3D narrative does transform the design process and, consequently, its results. For instance, (1) phenomenological issues enter the decision making process in an equal footing to functional, technological, or compositional considerations; (2) orthographic representations become secondary sources of information, mostly used for later accurate dimensioning or geometrization; (3) multi-sensory qualities beyond sight are seriously considered (particularly sound, texture, and kinesthetic); etc.
series ACADIA
email
last changed 2022/06/07 07:52

_id ae10
authors Branzell, Arne
year 1995
title Management of Sequential Space Experiences
source The Future of Endoscopy [Proceedings of the 2nd European Architectural Endoscopy Association Conference / ISBN 3-85437-114-4]
summary In this paper a way of combining endoscopy with architectural notations will be presented. Endoscopy is regarded as a tool to visualize sequences from a model in order to demonstrate how the environment will look like from the pedestrian’s or driver’s view. But while using it, its limitations must be considered. The model is mostly too small to present distant landmarks, districts, nodes and edges of importance. And most important, experience of space is not only visual. It is a complex process where many aspects must be taken into consideration. These aspects can be presented with architectural notations on physical drawings of the situation. The resulting “storyboard” is most useful in analyzing the situation and making better solutions possible.
keywords Architectural Endoscopy, Real Environments
series EAEA
more http://info.tuwien.ac.at/eaea/
last changed 2005/09/09 10:43

_id 6966
authors Chuah, M.C., Roth, S.F., Kolojejchick, J., Mattis, J. and Juarez, O.
year 1995
title SageBook: Searching data-graphics by content
source Proceedings of CHI , ACM Press
summary Currently, there are many hypertext-like tools and database retrieval systems that use keyword search as a means of navigation. While useful for certain tasks, keyword search is insufficient for browsing databases of data-graphics. SageBook is a system that searches among existing data-graphics, so that they can be reused with new data. In order to fulfill the needs of retrieval and reuse, it provides: 1) a direct manipulation, graphical query interface; 2) a content description language that can express important relationships for retrieving data-graphics; 3) automatic description of stored data-graphics based on their content; 4) search techniques sensitive to the structure and similarity among data-graphics; 5) manual and automatic adaptation tools for altering data-graphics so that they can be reused with new data.
series other
last changed 2003/04/23 15:50

_id 44f6
authors Colajanni, Benedetto and Pellitteri, Giuseppe (Eds.)
year 1995
title Multimedia and Architectural Disciplines [Conference Proceedings]
doi https://doi.org/10.52842/conf.ecaade.1995
source Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4 / Palermo (Italy) 16-18 November 1995, 436 p.
summary The rapid development of the potentialities of multimedia imposes a reflection about its use in teaching architecture. Multimedia is multifaceted and each facet deserves a particular attention inasmuch as it can change the traditional approach to learning. A direct experience of an architectural work can be simulated with a impact far stronger than an experience trough photographs, drawings and books can do. But, as every positive fact can have in certain cases also some negative consequences. the intensity of the participation to an experience structured by someone else can leave less space to a personal approach to the object of the presentation. The same problem is posed if we consider the structure of an hypertext. The essence of the hypertext lies in the net of relationships between very different kinds of documents that it is able to manage in order to express the complexity of its theme. But who has to create the net, the teacher choosing the relationship that he thinks important or the learner to build a personal image of the hypertext matter. It is an old question about the two faces of teaching: transmitting knowledge or giving the learner the instruments to build by oneself his store of knowledge. Easy and trivial answer that both approaches can be useful. The accomplishment of a multimedial sequence of average complexity requires at present a lot of time. Hence, to be convenient, it is to be used many times, then by many students. The effectiveness of the tool partly depends on the rapidity with which it can be constructed. Speeding it up would allow to use this kind of tools with the same easiness than mare traditional means of representation. Besides those general considerations a check is to do on the peculiarities, if any, of the use of multimedia in the different disciplines of the formative curriculum of an architect. This is theme of our thirteenth conference. The programme has been articulated into sessions, dealing separately with history teaching, design teaching and research. Of course the sessions dealing with design are more numerous than the other, since design is the axis of teaching architecture. The presented paper cover a large arc of arguments, dealing with many facets of the proposed themes with plenty of examples and documentation on practical experiences. constituting a corpus of great usefulness for any operator in the field of architectural teaching.

series eCAADe
email
more http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Home.htm
last changed 2022/06/07 07:49

_id e201
authors Coulon, Carl-Helmut
year 1995
title Automatic Indexing, Retrieval and Reuse of Topologies in Architectural Layouts
source Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 577-586
summary Former layouts contain much of the know-how of architects. A generic and automatic way to formalize this know-how in order to use it by a computer would save a lot of effort and money. However, there seems to be no such way. The only access to the know-how are the layouts themselves. Developing a generic software tool to reuse former layouts you cannot consider every part of the architectural domain or things like personal style. Tools used today only consider small parts of the architectural domain. Any personal style is ignored. Isnít it possible to build a basic tool which is adjusted by the content of the former layouts, but maybe extended inclemently by modeling as much of the domain as desirable? This paper will describe a reuse tool to perform this task focusing on topological and geometrical binary relations.
keywords Case-Based Reasoning, Graph Matching, Structural Comparison, Topology
series CAAD Futures
last changed 1999/08/03 17:16

_id e613
authors Kardos, Peter
year 1995
title The Role of Spatial Experience Anticipation in Architectural Education and Urban Design
source The Future of Endoscopy [Proceedings of the 2nd European Architectural Endoscopy Association Conference / ISBN 3-85437-114-4]
summary Space and its matter substance are the main subjects of urban design, in which an architect, by setting in order the functional-operating relationships and the matter-dimensional manifestations of the formed structure, operates with the aim to achieve general harmony, functional and expressive complexity. Demanding a process, which coordinates relationships in all space dimensions, requires flexible openness of the work documentation during the conception period. Experience proved that such requirements are satisfactorily accomplished by the method of space-modeling, where the creative process happens on the working model.

The reality, though diminished in a simplified form, is in advance, i.e. in an anticipated way. By adapted periscope the endoscopic method develops the method of spatial modeling in new media dimension and enriches it towards creativeness by enabling the simulated space to be percepted on a traditional artificial model in natural horizon of a man. To secure the anticipation by visual simulation of spatial experience on the monitor in a trustworthy manner with respect to real reality, according to relevant aspects of the conception, the visual simulation must respect the rules of sensory perception of a man in real environment. From the procedural point of view of perception the most significant fact for the psyche is the sequence dynamics of the subject and the movement of the perceiver in space. This means that in the mind of the perceiver the most emotionally reflected is the dynamic spatial experience.

Despite the known disadvantages and technical circumstances of model building the method of spatial endoscopy proved itself in didactics, mainly in the approval phase of the aims of urbanistic composition and shaping of an urban space, especially because it enables to carry out by interactive means the sequence research and evaluation of the simulated space on the working model, directly in the studio or in laboratory conditions with relatively low expenses, and with the possibility of immediate correction and subsequent evaluation of the effect. Similarly, its audiovisually elaborated media outputs may simultaneously complete the identical model presentation within evaluating and approving continuations in professional gremiums or in making the results of urban and architectonic solutions popular in the layman public. According to an informal public opinion research on the effect of both CAD and endoscopy simulations, the later one is more popular. Is is, however, a matter of subjective evaluation and experience or a matter of commercial application.

keywords Architectural Endoscopy, Real Environments
series EAEA
more http://info.tuwien.ac.at/eaea/
last changed 2005/09/09 10:43

_id 1003
authors Kepczynska-Walczak, Anetta
year 2002
title Revisiting A Classification of Multimedia Application in Architectural Education and Practice
doi https://doi.org/10.52842/conf.ecaade.2002.152
source Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 152-155
summary This paper seeks to illustrate the meaning of multimedia, and more significantly, the importance of implementation of the technology in architectural education and practice as it is today. In order to achieve this, the paper presents an analysis examining the evolution of the definition of multimedia, and then, attempts a classification of multimedia applications in architecture. For the first time, such a classification was created in 1995. It is timely, then, seven years later and in the context of a dramatic advancement in the field, to take stock of how multimedia technology is impacting the sphere of architectural education and practice and to suggest an updated classification.
series eCAADe
email
last changed 2022/06/07 07:52

_id avocaad_2001_19
id avocaad_2001_19
authors Shen-Kai Tang, Yu-Tung Liu, Yu-Sheng Chung, Chi-Seng Chung
year 2001
title The visual harmony between new and old materials in the restoration of historical architecture: A study of computer simulation
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 In the research of historical architecture restoration, scholars respectively focus on the field of architectural context and architectural archeology (Shi, 1988, 1990, 1991, 1992, 1995; Fu, 1995, 1997; Chiu, 2000) or on architecture construction and the procedure of restoration (Shi, 1988, 1989; Chiu, 1990). How to choose materials and cope with their durability becomes an important issue in the restoration of historical architecture (Dasser, 1990; Wang, 1998).In the related research of the usage and durability of materials, some scholars deem that, instead of continuing the traditional ways that last for hundreds of years (that is to replace new materials with old ones), it might be better to keep the original materials (Dasser, 1990). However, unavoidably, some of the originals are much worn. Thus we have to first establish the standard of eliminating components, and secondly to replace identical or similar materials with the old components (Lee, 1990). After accomplishing the restoration, we often unexpectedly find out that the renewed historical building is too new that the sense of history is eliminated (Dasser, 1990; Fu, 1997). Actually this is the important factor that determines the accomplishment of restoration. In the past, some scholars find out that the contrast and conflict between new and old materials are contributed to the different time of manufacture and different coating, such as antiseptic, pattern, etc., which result in the discrepancy of the sense of visual perception (Lee, 1990; Fu, 1997; Dasser, 1990).In recent years, a number of researches and practice of computer technology have been done in the field of architectural design. We are able to proceed design communication more exactly by the application of some systematic softwares, such as image processing, computer graphic, computer modeling/rendering, animation, multimedia, virtual reality and so on (Lawson, 1995; Liu, 1996). The application of computer technology to the research of the preservation of historical architecture is comparatively late. Continually some researchers explore the procedure of restoration by computer simulation technology (Potier, 2000), or establish digital database of the investigation of historical architecture (Sasada, 2000; Wang, 1998). How to choose materials by the technology of computer simulation influences the sense of visual perception. Liu (2000) has a more complete result on visual impact analysis and assessment (VIAA) about the research of urban design projection. The main subjects of this research paper focuses on whether the technology of computer simulation can extenuate the conflict between new and old materials that imposed on visual perception.The objective of this paper is to propose a standard method of visual harmony effects for materials in historical architecture (taking the Gigi Train Station destroyed by the earthquake in last September as the operating example).There are five steps in this research: 1.Categorize the materials of historical architecture and establish the information in digital database. 2.Get new materials of historical architecture and establish the information in digital database. 3.According to the mixing amount of new and old materials, determinate their proportion of the building; mixing new and old materials in a certain way. 4.Assign the mixed materials to the computer model and proceed the simulation of lighting. 5.Make experts and the citizens to evaluate the accomplished computer model in order to propose the expected standard method.According to the experiment mentioned above, we first address a procedure of material simulation of the historical architecture restoration and then offer some suggestions of how to mix new and old materials.By this procedure of simulation, we offer a better view to control the restoration of historical architecture. And, the discrepancy and discordance by new and old materials can be released. Moreover, we thus avoid to reconstructing ¡§too new¡¨ historical architecture.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id cf2011_p024
id cf2011_p024
authors Tidafi, Temy; Charbonneau Nathalie, Khalili-Araghi Salman
year 2011
title Backtracking Decisions within a Design Process: a Way of Enhancing the Designer's Thought Process and Creativity
source Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 573-587.
summary This paper proposes a way computer sciences could contribute to stimulate the designer’s reflexive thought. We explore the possibility of making use of backtracking devices in order to formalize the designer’s thought process. Design, as a process of creating an object, cannot be represented by means of a linear timeline. Accordingly, the backtracking processes we are discussing here are not based on a linear model but rather on a non-linear structure. Beyond the notion of undoing and redoing commands within CAD packages, the backtracking process is seen as a way to explore and record several alternate options. The branches of the non-linear model can be seen as pathways made of sequential decisions. The designer creates and explores these pathways while making tentative moves towards an architectural solution. Within the design process, backtracking enables the designer to establish and act on a network of interrelated decisions. This notion is fundamental. It is quite obvious that information, in order to be meaningful, must occupy a specific place within an informational network. A data, separated from its context, is devoid of interest. By the same token, a decision takes on significance solely in combination with other decisions. In this paper, we examine what kinds of decisions are involved within a design process, how they are connected, and what could be the best ways to formalize the relationships. Our goal is to experiment ways that could enable the designer and his/her collaborators to get a clearer mental picture of the network of decisions aforementioned. The non-linear model can be seen as a graph structure. The user moves wherever he/she wants through the branches of the structure to establish the network of decisions or to get reacquainted with a previous design process. As a matter of fact, it can act in both ways: to reassess or to confirm a decision. On the one hand, the designer can go back to previous states, reconsider past choices, and eventually modify them. On the other hand, he/she can move forward and revisit a given sequence of decisions, so as to recapture the essence of a previous design process. It goes without saying that knowledge regarding the design process is constructed by the designer from his/her own experiences. Since the designer’s perception evolves as time goes by, the network of decisions constitutes a model that is continuously questioned and restructured. The designer does not elaborate solely an architectural object, but also an evolving model formalizing the way he/she achieved his/her aim. As Le Moigne (1995) pointed out, the model itself produces knowledge; afterwards, the designer can examine it so as to get a clearer mental picture of his/her own cognitive processes. Furthermore, it can be used by his/her collaborators in order to understand which thread of ideas led the designer to a given visual result, and eventually resume or reorient the design process. In addition to reflecting on the ideological implications inherent to this questioning, we take into account the feasibility of such a research project. From a more technical point of view, in this paper we will describe how we plane to take up the challenge of elaborating a digital environment enabling backtracking processes within graph structures. Furthermore, we will explain how we plane to test the first trial version of the new environment with potential users so as to observe how they respond to it. These experiments will be conducted in order to verify to what extend the methods we are proposing are able to i) enhance the designer’s creativity and ii) increase our understanding of designer’s thought process.
keywords backtracking, design process, digital environments, problem space, network of decisions, graph structure.
series CAAD Futures
email
last changed 2012/02/11 19:21

_id avocaad_2001_16
id avocaad_2001_16
authors Yu-Ying Chang, Yu-Tung Liu, Chien-Hui Wong
year 2001
title Some Phenomena of Spatial Characteristics of Cyberspace
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 "Space," which has long been an important concept in architecture (Bloomer & Moore, 1977; Mitchell, 1995, 1999), has attracted interest of researchers from various academic disciplines in recent years (Agnew, 1993; Benko & Strohmayer, 1996; Chang, 1999; Foucault, 1982; Gould, 1998). Researchers from disciplines such as anthropology, geography, sociology, philosophy, and linguistics regard it as the basis of the discussion of various theories in social sciences and humanities (Chen, 1999). On the other hand, since the invention of Internet, Internet users have been experiencing a new and magic "world." According to the definitions in traditional architecture theories, "space" is generated whenever people define a finite void by some physical elements (Zevi, 1985). However, although Internet is a virtual, immense, invisible and intangible world, navigating in it, we can still sense the very presence of ourselves and others in a wonderland. This sense could be testified by our naming of Internet as Cyberspace -- an exotic kind of space. Therefore, as people nowadays rely more and more on the Internet in their daily life, and as more and more architectural scholars and designers begin to invest their efforts in the design of virtual places online (e.g., Maher, 1999; Li & Maher, 2000), we cannot help but ask whether there are indeed sensible spaces in Internet. And if yes, these spaces exist in terms of what forms and created by what ways?To join the current interdisciplinary discussion on the issue of space, and to obtain new definition as well as insightful understanding of "space", this study explores the spatial phenomena in Internet. We hope that our findings would ultimately be also useful for contemporary architectural designers and scholars in their designs in the real world.As a preliminary exploration, the main objective of this study is to discover the elements involved in the creation/construction of Internet spaces and to examine the relationship between human participants and Internet spaces. In addition, this study also attempts to investigate whether participants from different academic disciplines define or experience Internet spaces in different ways, and to find what spatial elements of Internet they emphasize the most.In order to achieve a more comprehensive understanding of the spatial phenomena in Internet and to overcome the subjectivity of the members of the research team, the research design of this study was divided into two stages. At the first stage, we conducted literature review to study existing theories of space (which are based on observations and investigations of the physical world). At the second stage of this study, we recruited 8 Internet regular users to approach this topic from different point of views, and to see whether people with different academic training would define and experience Internet spaces differently.The results of this study reveal that the relationship between human participants and Internet spaces is different from that between human participants and physical spaces. In the physical world, physical elements of space must be established first; it then begins to be regarded as a place after interaction between/among human participants or interaction between human participants and the physical environment. In contrast, in Internet, a sense of place is first created through human interactions (or activities), Internet participants then begin to sense the existence of a space. Therefore, it seems that, among the many spatial elements of Internet we found, "interaction/reciprocity" Ñ either between/among human participants or between human participants and the computer interface Ð seems to be the most crucial element.In addition, another interesting result of this study is that verbal (linguistic) elements could provoke a sense of space in a degree higher than 2D visual representation and no less than 3D visual simulations. Nevertheless, verbal and 3D visual elements seem to work in different ways in terms of cognitive behaviors: Verbal elements provoke visual imagery and other sensory perceptions by "imagining" and then excite personal experiences of space; visual elements, on the other hand, provoke and excite visual experiences of space directly by "mapping".Finally, it was found that participants with different academic training did experience and define space differently. For example, when experiencing and analyzing Internet spaces, architecture designers, the creators of the physical world, emphasize the design of circulation and orientation, while participants with linguistics training focus more on subtle language usage. Visual designers tend to analyze the graphical elements of virtual spaces based on traditional painting theories; industrial designers, on the other hand, tend to treat these spaces as industrial products, emphasizing concept of user-center and the control of the computer interface.The findings of this study seem to add new information to our understanding of virtual space. It would be interesting for future studies to investigate how this information influences architectural designers in their real-world practices in this digital age. In addition, to obtain a fuller picture of Internet space, further research is needed to study the same issue by examining more Internet participants who have no formal linguistics and graphical training.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id 3138
authors Zarnowiecka, Jadwiga C.
year 1995
title CAD – Space and Relational Databases
source CAD Space [Proceedings of the III International Conference Computer in Architectural Design] Bialystock 27-29 April 1995, pp. 221-225
summary The unquestionable primacy of a principal - investor makes the creators strain themselves to present visions of their works in the most clear way. Though perspective drawings enable verification of the vision, but as a part of technical specification on the site they are, in general, needless. It is the investor, not prepared for perception of two-dimensional drawings, who enforces the designer to look for still more attractive forms of presentation of project propositions. The efforts of the creator are addressed to him - in order to be understood, to enchant him, to win the competition for the client. Until quite lately the most readable (but how expensive) form of visualization was the miniature modelling. In the case of vision which has been already put into shape, there is always somebody who can aid the creator in various forms of visualization. The one who can help in laborious drafting of perspective, or in preparation of a traditional miniature model, or in creation of a modern (i.e. computer) one.
series plCAD
last changed 2000/01/24 10:08

_id 30d7
authors Bartnicka, Malgorzata
year 1995
title Childishly Honest Associate of the Trickery
source CAD Space [Proceedings of the III International Conference Computer in Architectural Design] Bialystock 27-29 April 1995, pp. 209-219
summary Perspective is a method of presentation of 3- dimensional space on the 2-dimensional surface. It can only approximately express the complexity of the authentic perception of reality. During the centuries canons of presentation varied in different epochs. It is quite possible that conventions of presentation considered today as exact expressions of reality may seem for the future generations as untrue as the ancient Egypt paintings seem for us. Our mind plays the major role in all kinds of presentation. During the whole life we learn to perceive the surrounding reality. We have formed also ability to ,see" the perspective. The linear perspective is not so easy in perception without factors of colour and light. These factors play a very important role in perception of the distance. The perception of perspective is not always unmistakable. Introduction of light and shadow is one of the measures to limit the ambiguity. Objects shown in perspective with appropriately chosen colouring and light-and-shade effects reveal impression of the distance inside the flat picture. Illusions of perspective are most astonishing when one can assume deep-rooted expectations and suppositions of the addressee. The computer monitor, like the picture, has only one plane on which our project can be presented. The major feature of architecture programs is both the possibility of creating various architecture spaces and the possibility to examine how (in our opinion) the created space would affect the addressee. By means of computer programs we are able to generate drawings and objects of two kinds: first - being the ideal projection of reality (at least in the same measure as the photograph), and the second - being the total negation of perspective rules. By means of CAD programs enabling 3-dimensional job we can check how all sorts of perspective tricks and artifices affect our imagination. The program cooperates with us trying to cheat the imperfect sense of sight. The trickeries can be of various type, starting from play of lights, through the elements changing the perception of perspective, and terminating with objects totally negating the rules of sound construction of solids. The knowledge contained in these programs is an encyclopaedic recapitulation of all sorts of achievements in the field of perspective and application of colour and light effects. All that remains to the users is to exploit this tremendous variety of capabilities.
series plCAD
last changed 2000/01/24 10:08

_id 695f
authors Galle, P.
year 1995
title Towards integrated, intelligent, and compliant computer modeling of buildings
source Automation in Construction 4 (3) (1995) pp. 189-211
summary This paper is a survey of current research into computer modeling of buildings. Just as much, however, it is a contribution to a debate on the future of this field of research (and as such expresses the author's opinions, rather than mere facts). It is suggested that more research should be conducted in a top-down "'problem-driven" (rather than in a bottom-up. "technology-driven") manner. As the goal of future research, ten desirable system properties are proposed and grouped together under three headings: integration. intelligence", and compliance. A critical survey of the current state-of-the-art of computer modeling of buildings is given, to assess how far we are from systems with such properties. On that background problems are discussed which are major obstacles to the proposed kind of systems (hence good starting points lot problem-driven research and some ways of approaching these problems are briefly evaluated.
keywords Computer Modeling of Buildings; Product Modeling: Computer Aided Building Design; Critical Survey; Goal-Setting Debate; Concurrency Control: Integrity Constraint Management; Representation; Complexity of Representations
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 14:47

_id 9a66
authors Lee, H., Lee, J. and Chang, S.
year 1995
title Design Adaptation for Handling Design Failures
source Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 567-576
summary This research deals with two important issues in Case-based Design (CBD): a structure of design cases and a process of design adaptation for handling design failures. The structure of design cases involves problem situation, design specification, design tasks, design solutions, causal explanation, past design failures as well as design performance. It has been noticed that how to represent a structure of design cases and how it can be used in actual a process of design adaptation process are important in Case-based Design. Adaptation process in Case-based Design is also critcial, especially in handling design failures. The description and the analysis of design adaptation process in the context of Case-based Design paradigm is the major focus of this research. A model of casual explanation is presented as an useful tool for identifying sources of design failures. For efficiently handling design failures based on causal explanation, it is essential to characterize various design failures and to devise an adequate structure of adaptation process. Applicability of adaptation process is demonstrated in an exemplary kitchen layout.
keywords Design Failures, Design Adaptation, Causal Explanation, Adaptation Strategies
series CAAD Futures
last changed 1999/08/03 17:16

_id a900
authors Maver, Thomas W. and Petric, Jelena
year 1995
title Information Technology in the Service of Sustainable Architecture and Urban Design
source Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 181-185
summary The quality of the built environment depends critically on the concept of sustainability and, in particular, on designs which are energy efficient and environmentally friendly. This paper gives an account of the successful application of computer-based simulations of the physical environment made available to architects through an Energy Design Advisory Service and used parametrically within a research project carried out jointly with a design and build company. It goes on to indicate how emerging multi-media technology can be used to provide an explanation, particularly to those who are technically unsophisticated, of the complexity of the way in which design decisions impact upon the energy efficiency and environmental friendliness of buildings.
keywords Energy Efficiency, Computer Simulation, Multi-Media, Design Decisions
series CAAD Futures
email
last changed 2003/04/16 11:51

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