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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Hits 1 to 20 of 219

_id 4eed
authors Benedickt, Michael (ed.)
year 1991
title Cyberspace: First Steps
source The MIT Press, Cambridge, MA and London, UK
summary Cyberspace has been defined as "an infinite artificial world where humans navigate in information-based space" and as "the ultimate computer-human interface." These original contributions take up the philosophical basis for cyberspace in virtual realities, basic communications principles, ramifications of cyberspace for future workplaces, and more.
series other
last changed 2003/04/23 15:14

_id 0d72
authors Millet, M.S., Hildebrand, G., Cohan, P. and Read, M.
year 1991
title ArchiMedia Case Studies: Integrative Architectural Education
source Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 127-134
doi https://doi.org/10.52842/conf.acadia.1991.127
summary Few people would argue that architectural education, ideally a complex holistic experience, completely integrates the many aspects and concerns that contribute to the design and realization of a building. This is hardly surprising given the vast array of information that architecture schools with limited resources attempt to present to students within constricted time frames. One may argue that in attempting to approach such a holistic educational goal, representations of reality on a computer screen are no more useful or provocative than conventional communication devices: slides, photographs, drawings, the spoken and printed word, moving pictures (film, video), and various combinations of all of these. The opportunities offered by computer-driven multimedia presentations, however, lie in the speed and relevance of connections made between associated ideas in various media formats. In particular, a multimedia presentation, if carefully authored and developed, can provide a wide range of interactive information gathering pathways. The approach called ArchiMedia offers a means for presenting a wide variety of information about a range of building types in an interactive format with the goal of supporting the creative and practical processes of communication among teachers and students.
series ACADIA
last changed 2022/06/07 07:59

_id 58cd
authors Schnoedt, Heinrich
year 1991
title Cultural Parametrics
source Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 223-234
doi https://doi.org/10.52842/conf.acadia.1991.223
summary The human desire for automation of repetitive processes offers opportunities for the employment of binary computing for these procedures. Architecture and the design of buildings is no exception. With an increase in industrial prefabrication of moderately variable building components, the focus of the practising architect shifts from the individual design process toward a selection process of parts or components with a defined parametric extent. While this concept of parameterized parts has been used by architects since the first repetitive part was available, the advent of modern CAAD systems, with a growing number of parametric components and parts already integrated, is likely to greatly amplify the impact of predefined parts on buildings. Both industry and research institutions continue to make a great effort to utilize building codes and organizational structures as the basis to develop sophisticated algorithms of rule based design. Their purpose of the parameterization of parts or concepts is twofold: to reduce the time frame of human labor on the design of pieces and concepts which are considered repetitive,. and, to install a control mechanism to eliminate mistakes which lay outside of the parametric framework. The implementation of these algorithms in architectural practice and in the educational environment suggests consequences on many levels. In the following, an attempt is made to cast some light on the history of parametrics in respect to computing and the problems associated with a predominantly numerically encoded parametric approach.
series ACADIA
email
last changed 2022/06/07 07:56

_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 b5be
authors Stok, Leon
year 1991
title Architectural synthesis and optimization of digital systems
source Eindhoven University of Technology
summary High level synthesis means going from an functional specification of a digits-system at the algorithmic level to a register transfer level structure. Different appli-cations will ask for different design styles. Despite this diversity in design styles many tasks in the synthesis will be similar. There is no need to write a new synthesis system for each design style. The best way to go seems a decomposition of the high level synthesis problems in several well defined subproblems. How the problem is decomposed depends heavily on a) the type of network architecture chosen, b) the constraints applied to the design and c) on the functional description itself. From this architecture style, the constraints and the functional description a synthesis scheme can be derived. Once this scheme is fixed, algorithms can be chosen which fit into this scheme and solve the subproblems in a fast and, when possible, optimal way. To support such a synthesis philosophy, a framework is needed in which all design information can be stored in a unique way during the various phases of the design process. This asks for a design data base capable of handling all design information with a formally defined interface to all design tools. This thesis gives a formal way to describe both the functional representation, the register transfer level structure and the controller and the relations between all three of them. Special attention has been paid to the efficient representation of mutual exclusive operations and array accesses. The scheduling and allocation problems are defined as mappings between these formal representations. Both the existing synthesis algorithms and the new algorithms described in this thesis fit into this framework. Three new allocation algorithms are presented in this thesis: an algorithm for optimal register allocation in cyclic data flow graphs, an exact polynomial algorithm to do the module allocation and a new scheme to minimize the number of interconnections during all stages of the data path allocation. Cyclic data flow graphs result from high level behavioral descriptions that contain loops. Algorithms for register allocation in high level synthesis published up till now, only considered loop free data flow graphs, When these algorithms are applied to data flow graphs with loops, unnecessary register transfer operations are introduced. A new algorithm is presented that performs a minimal register allocation and eliminates all superfluous register transfer operations. The problem is reformulated as a multicommodity network flow problem for which very efficient solutions exist. Experiments on a benchmark set have shown that in all test cases all register transfers could be eliminated at no increase in register cost. Only heuristic algorithms appeared in literature to solve the module allocation problem. The module allocation problem is usually defined as a clique cover problem on a so-called module allocation graph. It is shown that, under certain conditions, the module allocation graph belongs to the special class of comparability graphs. A polynomial time algorithm can optimally find a clique cover of such a graph. Even when interconnect weights are taken into account, this can be solved exactly. This problem can be transformed into a maximal cost network flow problem, which can be solved exactly in polynomial time. An algorithm is described which solves the module allocation problem with interconnect weights exactly, with a complexity O(kn2), where n is the number of operations In previous research, interconnection was optimized when the module allocation for the operations and the register allocation for the variables already had been done. However, the amount of multiplexing and interconnect are crucial factors to both the delay and the area of a circuit. A new scheme is presented to minimize the number of interconnections during the data path allocation. This scheme first groups all values based on their read and write times. Values belonging to the same group can share a register file. This minimizes the number of data transfers with different sources and destinations. Secondly, registers are allocated for each group separately. Finally the interconnect allocation is done. During the interconnect allocation, the module allocation is determined. The value grouping is based on edge coloring algorithms providing a sharp upper bound on the number of colors needed two techniques: splitting read and write phases of values and introducing serial (re-)write operations for the same value, make that even more efficient exact edge coloring algorithms can be used. It is shown that when variables are grouped into register files and operations are assigned to modules during the interconnection minimization, significant savings (20%) can be obtained in the number of local interconnections and the amount of global interconnect, at the expense of only slightly more register area.
keywords Digital Systems; Digital Systems
series thesis:PhD
email
last changed 2003/02/12 22:37

_id a40d
authors Paoluzzi, Alberto and Sansoni, Claudio
year 1991
title Solid Modeling of Architectural Design with PLASM Language
source Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 203-224
summary PLASM (Programming LAnguage for Solid Modeling) is a prototype, high level, user oriented, functional design language currently being developed at the University of Rome "La Sapienza". A PLASM "program" is the symbolic definition of a complex of variational polyhedra depending on some unbound variable, and therefore allows for the description of a whole set of geometric solutions to a design problem. In our view the language should be used, possibly with the assistance of a graphical user interface, both in the first steps of the design process as well in the detailed design. In the paper the guide-lines are shown for the preliminary definition of the syntax of the language. The paper also contains the definition of some new and very powerful solid operators.
series CAAD Futures
last changed 1999/04/07 12:03

_id 227a
authors Bourdeau, L., Dubois, A.-M. and Poyet, P.
year 1991
title A Common Data Model for Computer Integrated Building
source computer Integrated Future, CIB W78 Seminar. September, 1991. Unnumbered : some ill. includes bibliography
summary The connection of various building performance evaluation tools in a collaborative way is an essential request to develop true CAD systems. It is a basic requirement for the future of integrated information systems for building projects, where data concerning multiple aspects of the project can be exchanged during the different design steps. This paper deals with the on-going research concerning the generation of a common data model in the framework of a European collaborative action, the COMBINE Project, which is supported by the CEC, General Directorate XII for Research Science and Development, within the JOULE programme. The first step of the research concerns the progressive construction of a conceptual model and the paper focuses on the development of this Integrated Data Model (IDM). The paper reports on the definition of the architecture of the IDM. The main issues and the methodology of the IDM development are presented. The IDM development methodology is based on successive steps dealing with the identification of the data and context which are considered by the Design Tool Prototypes (DTP) to be connected through the IDM, the conceptual integration of this knowledge, and the implementation of the model on an appropriate software environment
keywords standards, integration, communication, building, evaluation, modeling
series CADline
last changed 2003/06/02 14:41

_id 27d2
authors Ayrle, Hartmut
year 1991
title Computers for Architects - Only a Tool?
source Experiences with CAAD in Education and Practice [eCAADe Conference Proceedings] Munich (Germany) 17-19 October 1991
doi https://doi.org/10.52842/conf.ecaade.1991.x.i9j
summary The paper states that, as a result of the schism between architecture as art and engineering as rationalism, the architectural community underestimates the computer as tool with a potential to substantially enlarge the possibilities of building design. It is claimed that the computer could serve as coordination tool for the ruptured design process, as a virtual workbench where all design disciplines sit together and develop their designs in enhanced conscience of what the whole design demands. The paper then concludes, that to develop such software tools, architects must participate in the development of software and may no longer be restricted to the role of applicants, especially during their universitary instruction. The corresponding research and training facilities at the University of Karlsruhe, Faculty of Architecture are described.

series eCAADe
last changed 2022/06/07 07:50

_id avocaad_2001_02
id avocaad_2001_02
authors Cheng-Yuan Lin, Yu-Tung Liu
year 2001
title A digital Procedure of Building Construction: A practical project
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 earlier times in which computers have not yet been developed well, there has been some researches regarding representation using conventional media (Gombrich, 1960; Arnheim, 1970). For ancient architects, the design process was described abstractly by text (Hewitt, 1985; Cable, 1983); the process evolved from unselfconscious to conscious ways (Alexander, 1964). Till the appearance of 2D drawings, these drawings could only express abstract visual thinking and visually conceptualized vocabulary (Goldschmidt, 1999). Then with the massive use of physical models in the Renaissance, the form and space of architecture was given better precision (Millon, 1994). Researches continued their attempts to identify the nature of different design tools (Eastman and Fereshe, 1994). Simon (1981) figured out that human increasingly relies on other specialists, computational agents, and materials referred to augment their cognitive abilities. This discourse was verified by recent research on conception of design and the expression using digital technologies (McCullough, 1996; Perez-Gomez and Pelletier, 1997). While other design tools did not change as much as representation (Panofsky, 1991; Koch, 1997), the involvement of computers in conventional architecture design arouses a new design thinking of digital architecture (Liu, 1996; Krawczyk, 1997; Murray, 1997; Wertheim, 1999). The notion of the link between ideas and media is emphasized throughout various fields, such as architectural education (Radford, 2000), Internet, and restoration of historical architecture (Potier et al., 2000). Information technology is also an important tool for civil engineering projects (Choi and Ibbs, 1989). Compared with conventional design media, computers avoid some errors in the process (Zaera, 1997). However, most of the application of computers to construction is restricted to simulations in building process (Halpin, 1990). It is worth studying how to employ computer technology meaningfully to bring significant changes to concept stage during the process of building construction (Madazo, 2000; Dave, 2000) and communication (Haymaker, 2000).In architectural design, concept design was achieved through drawings and models (Mitchell, 1997), while the working drawings and even shop drawings were brewed and communicated through drawings only. However, the most effective method of shaping building elements is to build models by computer (Madrazo, 1999). With the trend of 3D visualization (Johnson and Clayton, 1998) and the difference of designing between the physical environment and virtual environment (Maher et al. 2000), we intend to study the possibilities of using digital models, in addition to drawings, as a critical media in the conceptual stage of building construction process in the near future (just as the critical role that physical models played in early design process in the Renaissance). This research is combined with two practical building projects, following the progress of construction by using digital models and animations to simulate the structural layouts of the projects. We also tried to solve the complicated and even conflicting problems in the detail and piping design process through an easily accessible and precise interface. An attempt was made to delineate the hierarchy of the elements in a single structural and constructional system, and the corresponding relations among the systems. Since building construction is often complicated and even conflicting, precision needed to complete the projects can not be based merely on 2D drawings with some imagination. The purpose of this paper is to describe all the related elements according to precision and correctness, to discuss every possibility of different thinking in design of electric-mechanical engineering, to receive feedback from the construction projects in the real world, and to compare the digital models with conventional drawings.Through the application of this research, the subtle relations between the conventional drawings and digital models can be used in the area of building construction. Moreover, a theoretical model and standard process is proposed by using conventional drawings, digital models and physical buildings. By introducing the intervention of digital media in design process of working drawings and shop drawings, there is an opportune chance to use the digital media as a prominent design tool. This study extends the use of digital model and animation from design process to construction process. However, the entire construction process involves various details and exceptions, which are not discussed in this paper. These limitations should be explored in future studies.
series AVOCAAD
email
last changed 2005/09/09 10:48

_id c967
authors Fantacone, Enrico
year 1994
title Exporting CAD Teaching into Developing Countries
source The Virtual Studio [Proceedings of the 12th European Conference on Education in Computer Aided Architectural Design / ISBN 0-9523687-0-6] Glasgow (Scotland) 7-10 September 1994, p. 222
doi https://doi.org/10.52842/conf.ecaade.1994.x.t3s
summary In 1986 the Faculty of Architecture was established in Maputo. It is financed by the Italian Ministry of Foreign Affairs and managed by a Scientific Council of the Faculty of Architecture of "Università La Sapienza" of Rome. The need to create human technical resources beeing able to work profesionally as soon as they finish their studies, made the teaching basis for lab exercises and design. The new architects (the first six students graduated in 1991), need to design and make very important decisions without any control by more experienced local technical institutions. The creation of a CAAD laboratory, and the teaching of information technologies and metodologies in architectural designing aimes to achieve a double goal: (-) to make the new architects able to manage on their own, because of the lack of qualified human resources, large quantity of data, and difficult design problems; (-) to make University, the most important scientific center in the country, an information exchange center between developped countries, and Moçambique.
series eCAADe
last changed 2022/06/07 07:50

_id b04c
authors Goerger, S., Darken, R., Boyd, M., Gagnon, T., Liles, S., Sullivan, J. and Lawson, J.
year 1996
title Spatial Knowledge Acquisition from Maps and Virtual Environments in Complex Architectural Space
source Proc. 16 th Applied Behavioral Sciences Symposium, 22-23 April, U.S. Airforce Academy, Colorado Springs, CO., 1996, 6-10
summary It has often been suggested that due to its inherent spatial nature, a virtual environment (VE) might be a powerful tool for spatial knowledge acquisition of a real environment, as opposed to the use of maps or some other two-dimensional, symbolic medium. While interesting from a psychological point of view, a study of the use of a VE in lieu of a map seems nonsensical from a practical point of view. Why would the use of a VE preclude the use of a map? The more interesting investigation would be of the value added of the VE when used with a map. If the VE could be shown to substantially improve navigation performance, then there might be a case for its use as a training tool. If not, then we have to assume that maps continue to be the best spatial knowledge acquisition tool available. An experiment was conducted at the Naval Postgraduate School to determine if the use of an interactive, three-dimensional virtual environment would enhance spatial knowledge acquisition of a complex architectural space when used in conjunction with floor plan diagrams. There has been significant interest in this research area of late. Witmer, Bailey, and Knerr (1995) showed that a VE was useful in acquiring route knowledge of a complex building. Route knowledge is defined as the procedural knowledge required to successfully traverse paths between distant locations (Golledge, 1991). Configurational (or survey) knowledge is the highest level of spatial knowledge and represents a map-like internal encoding of the environment (Thorndyke, 1980). The Witmer study could not confirm if configurational knowledge was being acquired. Also, no comparison was made to a map-only condition, which we felt is the most obvious alternative. Comparisons were made only to a real world condition and a symbolic condition where the route is presented verbally.
series other
last changed 2003/04/23 15:50

_id fd70
authors Goldman, Glenn and Zdepski, Michael Stephen (Eds.)
year 1991
title Reality and Virtual Reality [Conference Proceedings]
source ACADIA Conference Proceedings / ISBN 1-880250-00-4 / Los Angeles (California - USA) October 1991, 236 p.
doi https://doi.org/10.52842/conf.acadia.1991
summary During the past ten years computers in architecture have evolved from machines used for analytic and numeric calculation, to machines used for generating dynamic images, permitting the creation of photorealistic renderings, and now, in a preliminary way, permitting the simulation of virtual environments. Digital systems have evolved from increasing the speed of human operations, to providing entirely new means for creating, viewing and analyzing data. The following essays illustrate the growing spectrum of computer applications in architecture. They discuss developments in the simulation of future environments on the luminous screen and in virtual space. They investigate new methods and theories for the generation of architectural color, texture, and form. Authors address the complex technical issues of "intelligent" models and their associated analytic contents. There are attempts to categorize and make accessible architects' perceptions of various models of "reality". Much of what is presented foreshadows changes that are taking place in the areas of design theory, building sciences, architectural graphics, and computer research. The work presented is both developmental, evolving from the work done before or in other fields, and unique, exploring new themes and concepts. The application of computer technology to the practice of architecture has had a cross disciplinary effect, as computer algorithms used to generate the "unreal" environments and actors of the motion picture industry are applied to the prediction of buildings and urban landscapes not yet in existence. Buildings and places from history are archeologically "re-constructed" providing digital simulations that enable designers to study that which has previously (or never) existed. Applications of concepts from scientific visualization suggest new methods for understanding the highly interrelated aspects of the architectural sciences: structural systems, environmental control systems, building economics, etc. Simulation systems from the aerospace industry and computer media fields propose new non-physical three-dimensional worlds. Video compositing technology from the television industry and the practice of medicine are now applied to the compositing of existing environments with proposed buildings. Whether based in architectural research or practice, many authors continue to question the development of contemporary computer systems. They seek new interfaces between human and machine, new methods for simulating architectural information digitally, and new ways of conceptualizing the process of architectural design. While the practice of architecture has, of necessity, been primarily concerned with increasing productivity - and automation for improved efficiency, it is clear that university based studies and research continue to go beyond the electronic replication of manual tasks and study issues that can change the processes of architectural design - and ultimately perhaps, the products.
series ACADIA
email
more http://www.acadia.org
last changed 2022/06/07 07:49

_id 2e3b
authors Kvan, Thomas and Kvan, Erik
year 1997
title Is Design Really Social
source Creative Collaboration in Virtual Communities 1997, ed. A. Cicognani. VC'97. Sydney: Key Centre of Design Computing, Department of Architectural and Design Science, University of Sydney, 8 p.
summary There are many who will readily agree with Mitchell’s assertion that “the most interesting new directions (for computer-aided design) are suggested by the growing convergence of computation and telecommunication. This allows us to treat designing not just as a technical process... but also as a social process.” [Mitchell 1995]. The assumption is that design was a social process until users of computer-aided design systems were distracted into treating it as a merely technical process. Most readers will assume that this convergence must and will lead to increased communication between design participants; that better social interaction leads to be better design. The unspoken assumption appears to be that putting the participants into an environment with maximal communication channels will result in design collaboration. The tools provided; therefore; must permit the best communication and the best social interaction. We think it essential to examine the foundations and assumptions on which software and environments are designed to support collaborative design communication. Of particular interest to us in this paper is the assumption about the “social” nature of design. Early research in computer-assisted design collaborations has jumped immediately into conclusions about communicative models which lead to high-bandwidth video connections as the preferred channel of collaboration. The unstated assumption is that computer-supported design environments are not adequate until they replicate in full the sensation of being physically present in the same space as the other participants (you are not there until you are really there). It is assumed that the real social process of design must include all the signals used to establish and facilitate face-to-face communication; including gestures; body language and all outputs of drawing (e.g. Tang [1991]). In our specification of systems for virtual design communities; are we about to fall into the same traps as drafting systems did?
keywords CSCW; Virtual Community; Architectural Design; Computer-Aided Design
series other
email
last changed 2002/11/15 18:29

_id 2619
authors Otero, E.
year 1996
title EVALUATION OF THE OSLD HOUSING SYSTEM
source Full-Scale Modeling in the Age of Virtual Reality [6th EFA-Conference Proceedings]
summary In the production of low-income housing, one of the factors that most affects the low cost of each unit is its mass production. When it comes to building a proposed design it must have been sufficiently studied and evaluated. When designing low-income housing it is convenient to exhaust all the possibilities of simulation in order to produce a prototype that, once built, has reduced the risk of errors. Simulations allow to improve the prototype before proceeding to build it. The Real Scale Model (RSM) has proved to be a better simulation tool than computer generated models or 1:10 scale models. It allows to reproduce and evaluate perceptual experiences as well as being user friendly because most of the spatial variables can be represented. This research is another example of the use and effectiveness of the RSM in the field of design and architectural research.

A Real Scale Model of the basic unit was built by the students of the course Spatial Design Ability dictated by the LEE. The model was first evaluated empty and then a furnishing solution was proposed, built and evaluated. These evaluations were done by another group of students of the Faculty of Architecture and Planning using the Psychological Impressions Measuring Test (IMIP) developed by Luis La Scalea (1991). This test was designed to measure people’s psychological impressions produced by a space, and consists of a semantic differential structured by eleven pairs of opposing adjectives set on a scale of seven levels. The results of this first evaluation were analysed used to modify the prototype which was evaluated again in order to produce a final layout.

keywords Model Simulation, Real Environments
series other
type normal paper
more http://info.tuwien.ac.at/efa/
last changed 2004/05/04 14:41

_id f2f6
authors Papper, M., Danahy, J. and Baecker, R.
year 1991
title Predictable Modelling Interaction Using High-Level Constraints: Making Objects Behave As They Would In Our Environment
source Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 211-222
doi https://doi.org/10.52842/conf.acadia.1991.211
summary An approach for a graphical CAD system that is capable of representing physical and geometric aspects of a design using high-level constraints (HLCs) is presented. A prototype spatial planning system incorporating constraints is used in an interactive manner to refine designs by following an iterative approach which uses visual information to evaluate the design at each stage of iteration. High-level constraints aid this iterative approach by influencing (or constraining) the behavior of objects as they are interactively manipulated during the design stage of problem solving. High-level constraints also define the scaling properties of objects which are useful during the construction stage of problem solving. This system and its implications for the design of CAD systems incorporating HLCs are discussed.
series ACADIA
email
last changed 2022/06/07 08:00

_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 75e0
authors Turoff, M.
year 1991
title Computer-mediated communication requirements for group support
source Journal of Organisational Computing 1, pp. 85-113
summary This paper talks about the requirements of computer-mediated communication (CMC) for group support. An overview of CMC's historical evolution is presented. Advantages of CMC include opportunity for group to exhibit "collective intelligence", asynchronous support of communication process, self-tailoring of communication structures by users and groups, and the integration into the communication system of other computer resources and information systems. The main advantage of using CMC is in the very fundamental nature of the communication medium. The asynchronous approaches to group problem solving free individuals to deal with problems in those cognitive processes at which they excel. Seven asynchronous group process factors are also presented. A CMC metaphor is also presented. The metaphor components discussed are conferences, messages, activities and notifications. A conference can be tailored according to activities. An activity can be attached to any communication item. When triggered, it will execute a program or procedure in the local or remote host. Notification functions include alerting, closure and tracking. The concepts of roles, privileges, and tickets are also discussed. Finally, the components of two CMC systems are presented. These components include an object-oriented database, distributed user and group agents, a master virtual machine, and a SGML interface specification language.
series journal paper
last changed 2003/04/23 15:14

_id 241f
authors Van Wyk, C.S.G., Bhat, R., Gauchel, J. and Hartkopf, V.
year 1991
title A Knowledge-based Approach to Building Design and Performance Evaluation
source Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 1-14
doi https://doi.org/10.52842/conf.acadia.1991.001
summary The introduction of physically-based description and simulation methods to issues of building performance (i.e., acoustic, visual, and air quality; thermal comfort, cost, and long-term system integrity) began in the early 1960s as one of the first examples of computer-aided design in architecture. Since that time, the development of commercially-available computer-aided design systems has largely been oriented towards the visualization and representation of the geometry of buildings, while the development of building performance applications has been concerned with approaches to mathematical and physics-based modeling for predictive purposes.
series ACADIA
email
last changed 2022/06/07 07:58

_id 22d6
authors Ballheim, F. and Leppert, J.
year 1991
title Architecture with Machines, Principles and Examples of CAAD-Education at the Technische Universität München
source Experiences with CAAD in Education and Practice [eCAADe Conference Proceedings] Munich (Germany) 17-19 October 1991
doi https://doi.org/10.52842/conf.ecaade.1991.x.h3w
summary "Design tools affect the results of the design process" - this is the starting point of our considerations about the efficient use of CAAD within architecture. To give you a short overview about what we want to say with this thesis lets have a short - an surely incomplete - trip through the fourth dimension back into the early time of civil engineering. As CAD in our faculty is integrated in the "Lehrstuhl für Hochbaustatik und Tragwerksplanung" (if we try to say it in English it would approximately be "institute of structural design"), we chose an example we are very familiar with because of its mathematical background - the cone sections: Circle, ellipse, parabola and hyperbola. If we start our trip two thousand years ago we only find the circle - or in very few cases the ellipse - in their use for the ground plan of greek or roman theaters - if you think of Greek amphitheaters or the Colosseum in Rome - or for the design of the cross section of a building - for example the Pantheon, roman aqueducts or bridges. With the rediscovery of the perspective during the Renaissance the handling of the ellipse was brought to perfection. May be the most famous example is the Capitol in Rome designed by Michelangelo Buonarotti with its elliptical ground plan that looks like a circle if the visitor comes up the famous stairway. During the following centuries - caused by the further development of the natural sciences and the use of new construction materials, i.e. cast-iron, steel or concrete - new design ideas could be realized. With the growing influence of mathematics on the design of buildings we got the division into two professions: Civil engineering and architecture. To the regret of the architects the most innovative constructions were designed by civil engineers, e.g. the early iron bridges in Britain or the famous bridges of Robert Maillard. Nowadays we are in the situation that we try to reintegrate the divided professions. We will return to that point later discussing possible solutions of this problem. But let us continue our 'historical survey demonstrating the state of the art we have today. As the logical consequence of the parabolic and hyperbolic arcs the hyperbolic parabolic shells were developed using traditional design techniques like models and orthogonal sections. Now we reach the point where the question comes up whether complex structures can be completely described by using traditional methods. A question that can be answered by "no" if we take the final step to the completely irregular geometry of cable- net-constructions or deconstructivistic designs. What we see - and what seems to support our thesis of the connection between design tools and the results of the design process - is, that on the one hand new tools enabled the designer to realize new ideas and on the other hand new ideas affected the development of new tools to realize them.

series eCAADe
more http://www.mediatecture.at/ecaade/91/ballheim_leppert.pdf
last changed 2022/06/07 07:50

_id cdb1
authors Cornick, T., Noble, B. and Hallahan, C.
year 1991
title The Limitations of Current Working Practices on the Development of Computer Integrating Modelling in Construction
source computer Integrated Future, CIB W78 Seminar. Calibre, The Netherlands: Eindhoven University of Technology, september, 1991. Unnumbered. includes bibliography
summary For the construction Industry to improve its processes through the application computer-based systems, traditional working practices must first change to support the integrated control of design and construction. Current manual methods of practice accept the limitations of man to process a wide range of building performance and production information simultaneously. However when these limitations are removed, through the applications of computer systems, the constraints of manual methods need no longer apply. The first generation of computer applications to the Construction Industry merely modelled the divided and sequential processes of manual methods i.e. drafting, specification writing, engineering and quantity calculations, estimating, billing, material ordering data-bases and activity planning. Use of these systems raises expectations that connections within the computer between the processes modelled can actually be made and faster and more integrated information processing be achieved. 'Linking' software is then developed. The end result of this approach was that users were able to produce information faster, present it in an impressive manner but, in reality, no perceived improvement in actual building performance, production economy or efficiency was realized. A current government sponsored Teaching Company Programme with a UK design and build company is addressing the problem of how real economic benefit can be realized through improvement in, amongst other things, their existing computer applications. This work is being carried out by both considering an academic conceptual model of how 'designing for production' can be achieved in computer applications and what is immediately realizable in practice by modelling the integration of a limited number of knowledge domains to which computers are already being applied. i.e. billing from design, estimating and buying. This paper describes each area of work and how they are impacting on each other
keywords construction, building process, integration
series CADline
last changed 2003/06/02 13:58

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