Cumincad : CUMINCAD Papers : Search Results

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	898a
authors	Bay, J.H.
year	2002
title	Cognitive Biases and Precedent Knowledge in Human and Computer-Aided Design Thinking
doi	https://doi.org/10.52842/conf.caadria.2002.213
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 213-220
summary	Cognitive biases (illusions) and potential errors can occur when using precedent knowledge for analogical, pre-parametric and qualitative design thinking. This paper refers largely to part of a completed research (Bay 2001) on how heuristic biases, discussed by Tversky and Kahneman (1982) in cognitive psychology, can affect judgement and learning of facts from precedents in architectural design, made explicit using a kernel of conceptual system (Tzonis et. al., 1978) and a framework of architectural representation (Tzonis 1992). These are used here to consider how such illusions and errors may be transferred to computer aided design thinking.
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	83f7
authors	Fenves, Stephen J., Flemming, Ulrich and Hendrickson, Craig (et al)
year	1992
title	Performance Evaluation in an Integrated Software Environment for Building Design and Construction Planning
source	New York: John Wiley & Sons, 1992. pp. 159-169 : ill. includes bibliography
summary	In this paper the authors describe the role of performance evaluation in the Integrated Software Environment for Building Design and Construction Planning (IBDE), which is a testbed for examining integration issues in the same domain. Various processes in IBDE deal with the spatial configuration, structural design, and construction planning of high-rise office buildings. Performance evaluations occur within these processes based on different representation schemes and control mechanisms for the handling of performance knowledge. Within this multiprocess environment, opportunities also exist for performance evaluation across disciplines through design critics
keywords	evaluation, performance, integration, systems, building, design, construction, architecture, planning, structures, representation, control
series	CADline
email
last changed	2003/06/02 10:24

_id	60e7
authors	Bailey, Rohan
year	2000
title	The Intelligent Sketch: Developing a Conceptual Model for a Digital Design Assistant
doi	https://doi.org/10.52842/conf.acadia.2000.137
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 137-145
summary	The computer is a relatively new tool in the practice of Architecture. Since its introduction, there has been a desire amongst designers to use this new tool quite early in the design process. However, contrary to this desire, most Architects today use pen and paper in the very early stages of design to sketch. Architects solve problems by thinking visually. One of the most important tools that the Architect has at his disposal in the design process is the hand sketch. This iterative way of testing ideas and informing the design process with images fundamentally directs and aids the architect’s decision making. It has been said (Schön and Wiggins 1992) that sketching is about the reflective conversation designers have with images and ideas conveyed by the act of drawing. It is highly dependent on feedback. This “conversation” is an area worthy of investigation. Understanding this “conversation” is significant to understanding how we might apply the computer to enhance the designer’s ability to capture, manipulate and reflect on ideas during conceptual design. This paper discusses sketching and its relation to design thinking. It explores the conversations that designers engage in with the media they use. This is done through the explanation of a protocol analysis method. Protocol analysis used in the field of psychology, has been used extensively by Eastman et al (starting in the early 70s) as a method to elicit information about design thinking. In the pilot experiment described in this paper, two persons are used. One plays the role of the “hand” while the other is the “mind”- the two elements that are involved in the design “conversation”. This variation on classical protocol analysis sets out to discover how “intelligent” the hand should be to enhance design by reflection. The paper describes the procedures entailed in the pilot experiment and the resulting data. The paper then concludes by discussing future intentions for research and the far reaching possibilities for use of the computer in architectural studio teaching (as teaching aids) as well as a digital design assistant in conceptual design.
keywords	CAAD, Sketching, Protocol Analysis, Design Thinking, Design Education
series	ACADIA
last changed	2022/06/07 07:54

_id	065b
authors	Beitia, S.S., Zulueta, A. and Barrallo, J.
year	1995
title	The Virtual Cathedral - An Essay about CAAD, History and Structure
doi	https://doi.org/10.52842/conf.ecaade.1995.355
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. 355-360
summary	The Old Cathedral of Santa Maria in Vitoria is the most representative building of the Gothic style in the Basque Country. Built during the XIV century, it has been closed to the cult in 1994 because of the high risk of collapse that presents its structure. This closure was originated by the structural analysis that was entrusted to the University of the Basque Country in 1992. The topographic works developed in the Cathedral to elaborate the planimetry of the temple revealed that many structural elements of great importance like arches, buttresses and flying buttresses were removed, modified or added along the history of Santa Maria. The first structural analysis made in the church suggested that the huge deformations showed in the resistant elements, specially the piers, were originated by interventions made in the past. A deep historical investigation allowed us to know how the Cathedral was built and the changes executed until our days. With this information, we started the elaboration of a virtual model of the Cathedral of Santa Maria. This model was introduced into a Finite Elements Method system to study the deformations suffered in the church during its construction in the XIV century, and the intervention made later in the XV, XVI and XX centuries. The efficiency of the virtual model simulating the geometry of the Cathedral along history allowed us to detect the cause of the structural damage, that was finally found in many unfortunate interventions along time.
series	eCAADe
more	http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_43.htm
last changed	2022/06/07 07:54

_id	8d37
authors	Bradford, J.W., Ng, F.F. and Will, B.F.
year	1992
title	Models and Hypermedia for Architectural Education
doi	https://doi.org/10.52842/conf.ecaade.1992.019
source	CAAD Instruction: The New Teaching of an Architect? [eCAADe Conference Proceedings] Barcelona (Spain) 12-14 November 1992, pp. 19-42
summary	Hypermedia uses the hypertext style of interactive navigation through computer-based multimedia materials to provide access to a wealth of information for use by teachers and students. Academic disciplines concerned about the enlightenment of future designers of the built environment require an additional medium not yet available in hypermedia - interactive 3-D computer models. This paper discusses a hypermedia CAI system currently being developed at the University of Hong Kong for use in architectural education. The system uses interactive 3D computer models as another medium for instructional information, and as user orientation and database access devices. An object oriented, 3-D model hierarchy is used as the organizational structure for the database. A prototype which uses the system to teach undergraduate architecture students about a traditional Chinese temple is also illustrated. The prototype demonstrates the use of a computer as the medium for bilingual English and Chinese instruction.
keywords	3-D Modelling, Architectural Education, Computer Aided Instruction, Hypermedia, Multimedia
series	eCAADe
email
last changed	2022/06/07 07:54

_id	9b34
authors	Butterworth, J. (et al.)
year	1992
title	3DM: A three-dimensional modeler using a head-mounted display
source	Proceedings of the 1992 Symposium on Interactive 3D Graphics (Cambridge, Mass., March 29- April 1, 1992.), 135-138
summary	3dm is a three dimensional (3D) surface modeling program that draws techniques of model manipulation from both CAD and drawing programs and applies them to modeling in an intuitive way. 3dm uses a head-mounted display (HMD) to simplify the problem of 3D model manipulation and understanding. A HMD places the user in the modeling space, making three dimensional relationships more understandable. As a result, 3dm is easy to learn how to use and encourages experimentation with model shapes.
series	other
last changed	2003/04/23 15:50

_id	0ad8
authors	Candy, E., Maver, T.W. and Petric, J.
year	1992
title	A Multi-Media Celebration of Robert Adam's Glasgow Architecture
doi	https://doi.org/10.52842/conf.ecaade.1992.043
source	CAAD Instruction: The New Teaching of an Architect? [eCAADe Conference Proceedings] Barcelona (Spain) 12-14 November 1992, pp. 43-54
summary	This paper is a summary of work done in preparation for an exhibition titled "A European Vision: Robert Adam's Glasgow" which marks the bi-centenary of Robert Adam's death. The main contributors to this project, orchestrated over academic sessions 91/92, were the undergraduate and post-graduate students from the Department of Architecture, University of Strathclyde, Glasgow.
series	eCAADe
email
last changed	2022/06/07 07:54

_id	acadia03_036
id	acadia03_036
authors	Gerzso, J. Michael
year	2003
title	On the Limitations of Shape Grammars: Comments on Aaron Fleisher’s Article “Grammatical Architecture?”
doi	https://doi.org/10.52842/conf.acadia.2003.279
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 279-287
summary	Shape grammars were introduced by Gips and Stiny in 1972. Since then, there have been many articles and books written by them and their associates. In 1992, Aaron Fleisher, a professor at the School of Planning, MIT, wrote a critique of their work in an article titled “Grammatical Architecture?” published in the journal Environment and Planning B. According to him, Gips, Stiny and later Mitchell, propose a hypothesis that states that shape grammars are presumed to represent knowledge of architectural form, that grammars are “formable,” and that there is a visual correspondence to verbal grammar. The strong version of “the hypothesis requires that an architectural form be equivalent to a grammar.” Fleisher considers these hypotheses unsustainable, and argues his case by analyzing the differences between language, and architecture, and by dealing with the concepts of lexicons, syntax and semantics. He concludes by stating that architectural design is negotiated in two modalities: the verbal and the visual, and that equivalences are not at issue; they do not exist. If there is such thing as a language for design, it would provide the means to maintain a discussion of the consequences in one mode, of the state and conditions of the other. Fleisher’s observations serve as the basis of this paper, a tribute to him, and also an opportunity to present an outline to an alternate approach or hypothesis to shape grammars, which is “nonlinguistic” but “generative,” in the sense that it uses production rules. A basic aspect of this hypothesis is that the only similarity between syntactic rules in language and some rules in architecture is that they are recursive.
series	ACADIA
last changed	2022/06/07 07:51

_id	ea96
authors	Hacfoort, Eek J. and Veldhuisen, Jan K.
year	1992
title	A Building Design and Evaluation System
source	New York: John Wiley & Sons, 1992. pp. 195-211 : ill. table. includes bibliography
summary	Within the field of architectural design there is a growing awareness of imbalance among the professionalism, the experience, and the creativity of the designers' response to the up-to-date requirements of all parties interested in the design process. The building design and evaluating system COSMOS makes it possible for various participants to work within their own domain, so that separated but coordinated work can be done. This system is meant to organize the initial stage of the design process, where user-defined functions, geometry, type of construction, and building materials are decided. It offers a tool to design a building to calculate a number of effects and for managing the information necessary to evaluate the design decisions. The system is provided with data and sets of parameters for describing the conditions, along with their properties, of the main building functions of a selection of well-known building types. The architectural design is conceptualized as being a hierarchy of spatial units, ranking from building blocks down to specific rooms or spaces. The concept of zoning is used as a means of calculating and directly evaluating the structure of the design without working out the details. A distinction is made between internal and external calculations and evaluations during the initial design process. During design on screen, an estimation can be recorded of building costs, energy costs, acoustics, lighting, construction, and utility. Furthermore, the design can be exported to a design application program, in this case AutoCAD, to make and show drawings in more detail. Through the medium of a database, external calculation and evaluation of building costs, life-cycle costs, energy costs, interior climate, acoustics, lighting, construction, and utility are possible in much more advanced application programs
keywords	evaluation, applications, integration, architecture, design, construction, building, energy, cost, lighting, acoustics, performance
series	CADline
last changed	2003/06/02 13:58

_id	ddss9218
id	ddss9218
authors	Hensen, J.L.M.
year	1993
title	Design support via simulation of building and plant thermal interaction
source	Timmermans, Harry (Ed.), Design and Decision Support Systems in Architecture (Proceedings of a conference held in Mierlo, the Netherlands in July 1992), ISBN 0-7923-2444-7
summary	Design decision support related to building energy consumption and/or indoor climate should be based on an integral approach to the environment, the building, heating, ventilating and air-conditioning (HVAC) system, and the occupants. The tools to achieve this are now available in the form of computer simulation systems which treat the building and plant as an integrated dynamic system. Although its potentials reach beyond the area of Computer Aided Building Design, the paper describes building and plant energy simulation within the context of CABD, design decision support and design evaluation. Currently, computer simulation is only used indirectly as a design decision support mechanism; that is, its power is not delivered very efficiently to the design profession. This paper suggests some future research directions. These are aimed at providing a mechanism to overcome this problem by developing an intelligent front end' which bridges the gap between sophisticated computer simulation tools and the design profession.
series	DDSS
last changed	2003/08/07 16:36

_id	0b53
authors	Lawrence, Roderick J.
year	1992
title	CHARACTERISTICS OF ARCHITECTURAL DESIGN-TOOLS
source	Proceedings of the 4rd European Full-Scale Modelling Conference / Lausanne (Switzerland) 9-12 September 1992, Part B, pp. 7-14
summary	The professional roles and fonctions of architects are linked to the societal context in which they practice. Furthermore, this context, which is not static, has a relationship to the ways in which institutions, groups and individuals are involved in processes for the design and construction of the built environment. This presentation illustrates how the roles and functions of architects, other professionals, their clients and the general public have a bearing on the tools and methods used by the architectural profession to simulate design projects. Traditionally, sketches, renderings and pattern books were used. Then, they were supplemented by axonometric and perspective drawings, written and diagrammatic specifications, photographs and small-scale models. In recent decades mathematical models of diverse kinds, simulation techniques -including small- and full-scale modelling kits -as well as computer aided design and drafting systems have been used. This paper briefly presents these kinds of tools and then presents a typology of them. In conclusion, possible applications for the future are discussed.
keywords	Full-scale Modeling, Model Simulation, Real Environments
series	other
type	normal paper
email
more	http://info.tuwien.ac.at/efa
last changed	2004/05/04 15:39

_id	a2e6
authors	Liggett, R.S., Mitchell, W.J. and Tan, M.
year	1992
title	Multi-Level Analysis and Optimization of Design
source	New York: John Wiley & Sons, 1992. pp. 2512-269 : ill. includes bibliography
summary	This paper discusses a knowledge-based computer-aided design system, that provides multi-level analysis capabilities, and that automatically propagates constraints on design variables from level to level. It also Supports formulation and solution of optimization problems at different levels, so that a solution can be approached by solving a sequence of appropriately constrained sub-optimization problems. Theory and implementation are discussed, and a detailed case study of application to the design of small house plans is provided
keywords	constraints, design, methods, knowledge base, CAD, systems, analysis, optimization, automation, user interface, shape grammars
series	CADline
email
last changed	2003/06/02 14:41

_id	a07c
authors	Mitchell, William J.
year	1992
title	The Uses of Inconsistency in Design
source	New York: John Wiley & Sons, 1992. pp. 1-13 : ill. includes bibliography.--- This article is the introduction chapter to the book
summary	In this paper two of the central dogmas underlying most current theories of design evaluation are challenged: that the representations used by a designer must be well formed, and that a designer must have a consistent belief framework within which to make judgements about design proposals. The crucial roles in design of ambiguous and inconsistent representations and provisional beliefs are examined, and a model of design exploration based on nonmonotonic modes of reasoning is sketched
keywords	reasoning, evaluation, prediction, design process, architecture
series	CADline
email
last changed	2003/06/02 10:24

_id	244d
authors	Monedero, J., Casaus, A. and Coll, J.
year	1992
title	From Barcelona. Chronicle and Provisional Evaluation of a New Course on Architectural Solid Modelling by Computerized Means
doi	https://doi.org/10.52842/conf.ecaade.1992.351
source	CAAD Instruction: The New Teaching of an Architect? [eCAADe Conference Proceedings] Barcelona (Spain) 12-14 November 1992, pp. 351-362
summary	The first step made at the ETSAB in the computer field goes back to 1965, when professors Margarit and Buxade acquired an IBM computer, an electromechanical machine which used perforated cards and which was used to produce an innovative method of structural calculation. This method was incorporated in the academic courses and, at that time, this repeated question "should students learn programming?" was readily answered: the exercises required some knowledge of Fortran and every student needed this knowledge to do the exercises. This method, well known in Europe at that time, also provided a service for professional practice and marked the beginning of what is now the CC (Centro de Calculo) of our school. In 1980 the School bought a PDP1134, a computer which had 256 Kb of RAM, two disks of 5 Mb and one of lO Mb, and a multiplexor of 8 lines. Some time later the general politics of the UPC changed their course and this was related to the purchase of a VAX which is still the base of the CC and carries most of the administrative burden of the school. 1985 has probably been the first year in which we can talk of a general policy of the school directed towards computers. A report has been made that year, which includes an inquest adressed to the six Departments of the School (Graphic Expression, Projects, Structures, Construction, Composition and Urbanism) and that contains interesting data. According to the report, there were four departments which used computers in their current courses, while the two others (Projects and Composition) did not use them at all. The main user was the Department of Structures while the incidence of the remaining three was rather sporadic. The kind of problems detected in this report are very typical: lack of resources for hardware and software and for maintenance of the few computers that the school had at that moment; a demand (posed by the students) greatly exceeding the supply (computers and teachers). The main problem appeared to be the lack of computer graphic devices and proper software.
series	eCAADe
email
last changed	2022/06/07 07:58

_id	8970
authors	Mortola, E., Petric, J. Sabater, T. and Baletic, B.
year	1992
title	Multi-Media Exploration of The Historical and Visual Environment of Split
doi	https://doi.org/10.52842/conf.ecaade.1992.511
source	CAAD Instruction: The New Teaching of an Architect? [eCAADe Conference Proceedings] Barcelona (Spain) 12-14 November 1992, pp. 511-524
summary	This short paper recounts an attempt - at a time when the beautiful country of Yugoslavia was in the process of disintegration - by academics from four different countries to integrate their experiences of the information technologies in the production of a prototype multi-media archive which captures the visual, historical and cultural environment of the region of Split.
series	eCAADe
email
last changed	2022/06/07 07:58

_id	aa6d
authors	Nichols, Foster Jr., Canete, Isabel J. and Tuladhar, Sagun
year	1992
title	Designing for Pedestrians : A CAD-Network Analysis Approach
source	New York: John Wiley & Sons, 1992. pp. 379-398 : ill. includes a short bibliography
summary	Microcomputer techniques have been developed that combine CAD drawings with transportation network analysis software that uses spreadsheets and stand-alone programs activated from the DOS operating system. The CAD feature simplifies and improves the methods used to design pedestrian circulation facilities and evaluate the impact of new development on existing pedestrian flows. Through the use of customized software, the need for manual data entry is reduced, and the graphical display of analysis results in most intermediate steps in the process are automated. Three hypothetical case studies are presented, concentrating on proposed pedestrian circulation improvements at Penn Station, New York
keywords	evaluation, networks, management, CAD, analysis, applications, planning, transportation, prediction, simulation, CAD
series	CADline
last changed	2003/06/02 13:58

_id	2c22
authors	O'Neill, Michael J.
year	1992
title	Neural Network Simulation as a Computer- Aided design Tool For Predicting Wayfinding Performance
source	New York: John Wiley & Sons, 1992. pp. 347-366 : ill. includes bibliography
summary	Complex public facilities such as libraries, hospitals, and governmental buildings often present problems to users who must find their way through them. Research shows that difficulty in wayfinding has costs in terms of time, money, public safety, and stress that results from being lost. While a wide range of architectural research supports the notion that ease of wayfinding should be a criterion for good design, architects have no method for evaluating how well their building designs will support the wayfinding task. People store and retrieve information about the layout of the built environment in a knowledge representation known as the cognitive map. People depend on the information stored in the cognitive map to find their way through buildings. Although there are numerous simulations of the cognitive map, the mechanisms of these models are not constrained by what is known about the neurophysiology of the brain. Rather, these models incorporate search mechanisms that act on semantically encoded information about the environment. In this paper the author describes the evaluation and application of an artificial neural network simulation of the cognitive map as a means of predicting wayfinding behavior in buildings. This simulation is called NAPS-PC (Network Activity Processing Simulator--PC version). This physiologically plausible model represents knowledge about the layout of the environment through a network of inter-connected processing elements. The performance of NAPS-PC was evaluated against actual human wayfinding performance. The study found that the simulation generated behavior that matched the performance of human participants. After the validation, NAPS-PC was modified so that it could read environmental information directly from AutoCAD (a popular micro-computer-based CAD software package) drawing files, and perform 'wayfinding' tasks based on that environmental information. This prototype tool, called AutoNet, is conceptualized as a means of allowing designers to predict the wayfinding performance of users in a building before it is actually built
keywords	simulation, cognition, neural networks, evaluation, floor plans, applications, wayfinding, layout, building
series	CADline
last changed	2003/06/02 13:58

_id	054b
authors	Peitgen, H.-O., Jürgens, H. and Saupe, D.
year	1992
title	Fractals for the Classroom. Part 1: Introduction to Fractals and Chaos
source	Springer Verlag, New York
summary	Fractals for the Classroom breaks new ground as it brings an exciting branch of mathematics into the classroom. The book is a collection of independent chapters on the major concepts related to the science and mathematics of fractals. Written at the mathematical level of an advanced secondary student, Fractals for the Classroom includes many fascinating insights for the classroom teacher and integrates illustrations from a wide variety of applications with an enjoyable text to help bring the concepts alive and make them understandable to the average reader. This book will have a tremendous impact upon teachers, students, and the mathematics education of the general public. With the forthcoming companion materials, including four books on strategic classroom activities and lessons with interactive computer software, this package will be unparalleled.
series	other
last changed	2003/04/23 15:14

_id	ebb2
authors	Proctor, George
year	2000
title	Reflections on the VDS, Pedagogy, Methods
doi	https://doi.org/10.52842/conf.acadia.2000.015.2
source	ACADIA Quarterly, vol. 19, no. 1, pp. 15-16
summary	After having conducted a Digital Media based design studio at Cal Poly for six years, we have developed a body of experience I feel is worth sharing. When the idea of conducting a studio with the exclusive use of digital tools was implemented at our college, it was still somewhat novel, and only 2 short years after the first VDS- Virtual Design Studio (UBC, UHK et.al.-1993). When we began, most of what we explored required a suspension of disbelief on the part of both the students and faculty reviewers of studio work. In a few short years the notions we examined have become ubiquitous in academic architectural discourse and are expanding into common use in practice. (For background, the digital media component of our curriculum owes much to my time at Harvard GSD [MAUD 1989-91] and the texts of: McCullough/Mitchell 1990, 1994; McCullough 1998; Mitchell 1990,1992,1996; Tufte 1990; Turkel 1995; and Wojtowicz 1993; and others.)
series	ACADIA
email
last changed	2022/06/07 08:00

_id	831d
authors	Seebohm, Thomas
year	1992
title	Discoursing on Urban History Through Structured Typologies
doi	https://doi.org/10.52842/conf.acadia.1992.157
source	Mission - Method - Madness [ACADIA Conference Proceedings / ISBN 1-880250-01-2] 1992, pp. 157-175
summary	How can urban history be studied with the aid of three-dimensional computer modeling? One way is to model known cities at various times in history, using historical records as sources of data. While such studies greatly enhance the understanding of the form and structure of specific cities at specific points in time, it is questionable whether such studies actually provide a true understanding of history. It can be argued that they do not because such studies only show a record of one of many possible courses of action at various moments in time. To gain a true understanding of urban history one has to place oneself back in historical time to consider all of the possible courses of action which were open in the light of the then current situation of the city, to act upon a possible course of action and to view the consequences in the physical form of the city. Only such an understanding of urban history can transcend the memory of the actual and hence the behavior of the possible. Moreover, only such an understanding can overcome the limitations of historical relativism, which contends that historical fact is of value only in historical context, with the realization, due to Benedetto Croce and echoed by Rudolf Bultmann, that the horizon of "'deeper understanding" lies in "'the actuality of decision"' (Seebohm and van Pelt 1990). One cannot conduct such studies on real cities except, perhaps, as a point of departure at some specific point in time to provide an initial layout for a city knowing that future forms derived by the studies will diverge from that recorded in history. An entirely imaginary city is therefore chosen. Although the components of this city at the level of individual buildings are taken from known cities in history, this choice does not preclude alternative forms of the city. To some degree, building types are invariants and, as argued in the Appendix, so are the urban typologies into which they may be grouped. In this imaginary city students of urban history play the role of citizens or groups of citizens. As they defend their interests and make concessions, while interacting with each other in their respective roles, they determine the nature of the city as it evolves through the major periods of Western urban history in the form of threedimensional computer models. My colleague R.J. van Pelt and I presented this approach to the study of urban history previously at ACADIA (Seebohm and van Pelt 1990). Yet we did not pay sufficient attention to the manner in which such urban models should be structured and how the efforts of the participants should be coordinated. In the following sections I therefore review what the requirements are for three-dimensional modeling to support studies in urban history as outlined both from the viewpoint of file structure of the models and other viewpoints which have bearing on this structure. Three alternative software schemes of progressively increasing complexity are then discussed with regard to their ability to satisfy these requirements. This comparative study of software alternatives and their corresponding file structures justifies the present choice of structure in relation to the simpler and better known generic alternatives which do not have the necessary flexibility for structuring the urban model. Such flexibility means, of course, that in the first instance the modeling software is more timeconsuming to learn than a simple point and click package in accord with the now established axiom that ease of learning software tools is inversely related to the functional power of the tools. (Smith 1987).
series	ACADIA
email
last changed	2022/06/07 07:56

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