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	68c8
authors	Flemming, U., Coyne, R. and Fenves, S. (et al.)
year	1994
title	SEED: A Software Environment to Support the Early Phases in Building Design
source	Proceeding of IKM '94, Weimar, Germany, pp. 5-10
summary	The SEED project intends to develop a software environment that supports the early phases in building design (Flemming et al., 1993). The goal is to provide support, in principle, for the preliminary design of buildings in all aspects that can gain from computer support. This includes using the computer not only for analysis and evaluation, but also more actively for the generation of designs, or more accurately, for the rapid generation of design representations. A major motivation for the development of SEED is to bring the results of two multi-generational research efforts focusing on `generative' design systems closer to practice: 1. LOOS/ABLOOS, a generative system for the synthesis of layouts of rectangles (Flemming et al., 1988; Flemming, 1989; Coyne and Flemming, 1990; Coyne, 1991); 2. GENESIS, a rule-based system that supports the generation of assemblies of 3-dimensional solids (Heisserman, 1991; Heisserman and Woodbury, 1993). The rapid generation of design representations can take advantage of special opportunities when it deals with a recurring building type, that is, a building type dealt with frequently by the users of the system. Design firms - from housing manufacturers to government agencies - accumulate considerable experience with recurring building types. But current CAD systems capture this experience and support its reuse only marginally. SEED intends to provide systematic support for the storing and retrieval of past solutions and their adaptation to similar problem situations. This motivation aligns aspects of SEED closely with current work in Artificial Intelligence that focuses on case-based design (see, for example, Kolodner, 1991; Domeshek and Kolodner, 1992; Hua et al., 1992).
series	other
email
last changed	2003/04/23 15:14

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

_id	8869
authors	Ataman, Osman
year	2002
title	Historical Analysis of Building - (Re)Construction in Olivette Park, USA
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 63-66
summary	From 1959 to 1990, East St. Louis, Illinois deteriorated from an “All-American City” to a national symbol of urban blight. Located on the Mississippi River, the East St. Louis of today faces severe economic, social, and environmental problems. Nearly onequarter of the city’s work force is unemployed and about 40 percent of families are living below the poverty level. But East St. Louis was not always a distressed community. With strong ties to St. Louis and the surrounding region, East St. Louis onceflourished as the country’s second busiest railroad hub. Powerful economic and socio-political forces, as well as unfortunate historical circumstance, propelled the city into a downward spiral that drastically decreased the quality of life in East St. Louis. This paper presents the digital re-construction of the buildings and the analyses of the historical aspects of the housing construction and types in this area. Furthermore, it reports the survey and assessment of the quality of building stocks based on therevitalization plan that will provide some guidelines and suggestions for improvement, stability, and future needs.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ddss9219
id	ddss9219
authors	Bourdakis, V. and Fellows, R.F.
year	1993
title	A model appraising the performance of structural systems used in sports hall and swimming pool buildings in greece
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	The selection of the best performing structural system (among steel, timber laminated, concrete, fabric tents) for medium span (30-50m) sports halls and swimming pools in Greece formed the impetus for this research. Decision-making concerning selection of the structural system is difficult in this sector of construction, as was explained in the "Long Span Structures" conference (November 1990, Athens. Greece). From the literature it has been found that most building appraisals end up at the level of data analysis and draw conclusions on the individual aspects they investigate. These approaches usually focus on a fraction of the problem, examining it very deeply and theoretically. Their drawback is loss of comprehensiveness and ability to draw conclusions on an overall level and consequently being applicable to the existing conditions. Research on an inclusive level is sparse. In this particular research project, an inclusive appraisal approach was adopted, leading to the identification of three main variables: resources, human-user-satisfaction, and technical. Consequently, this led to a combination of purely quantitative and qualitative data. Case studies were conducted on existing buildings in order to assess the actual performance of the various alternative structural systems. This paper presents the procedure followed for the identification of the research variables and the focus on the development of the model of quantification. The latter is of vital importance if the problem of incompatibility of data is to be solved, overall relation of findings is to be achieved and holistic conclusions are to be drawn.
series	DDSS
last changed	2003/11/21 15:16

_id	3207
authors	Emmerik, Maarten J.G.M. van
year	1990
title	Interactive design of parameterized 3D models by direct manipulation
source	Delft University of Technology
summary	The practical applicability of a computer-aided design system is strongly influenced by both the user interface and the internal model representation. A well designed user interface facilitates the communication with the system by offering an intuitive environment for for specification and representation of model information. An internal model representation, capable of storing geometric, topological and hierarchical dependencies between components in a model, increases the efficiency of the system by facilitating modification and elaboration of the model during the different stages of the design process. The subject of this thesis is the integration of a high level parameterized model representation with direct manipulation interface techniques for the design of three-dimensional objects. A direct manipulation interface enables the user to specify a model by interaction on a graphical representation, as an alternative for an abstract and error-prone apha-numerical dialogue style. A high level model representation is obtained by using a procedural modeling language with general purpose control structures, including arithmetic and logical expressions, repetition, conditionals, functions and procedures, and dedicated data types such as coordinate systems, geometric primitives and geometric constraints. The language interpreter is interconnected with a graphical interface, an incremental constraint solver and a geometrical modeler, using visual programming techniques. The developed techniques are implemented in a modeling system called GeoNode. The system incorporates paradigms of object-oriented design, with respect to both the user interface and to the system implementation. The applicability of the presented techniques is illustrated by examples in application domains such as solid modeling, kinematic analysis, feature modeling and top-down design.
keywords	CAD/CAM
series	thesis:PhD
last changed	2003/02/12 22:37

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

_id	acadia06_496
id	acadia06_496
authors	Jemtrud, Michael
year	2006
title	Eucalyptus: User Controlled Lightpath Enabled Participatory Design Studio
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 496-509
doi	https://doi.org/10.52842/conf.acadia.2006.496
summary	A new notion of participation is at stake with advances in technologically mediated work environments. The digitally mediated e-design studio has been around since the mid-1990’s and has been employed in various forms in disciplines including architecture/engineering/construction (AEC), industrial design, and the automotive industry. Insufficient bandwidth and insufficiently powerful, crudely coordinated tools resulted in distributed task-based modes of collaboration that did not allow full participation by members of the distributed design team. At the very least, the present “second generation” network severely limits the applications, tools, and modes of communication that can be used in data and visualization intense design scenarios. The emergence of Service Oriented Architectures and User-Controlled LightPaths (“intelligent infrastructure”) herald the beginning of a new age where fully participatory multi-site design may become possible. The networks, visualization & communication tools, Service Oriented Architecture & Web Services, work protocols, and physical site designs of the Participatory Design Studio (PDS) being developed by the authors will constitute one of the first working examples of this future. This paper will briefly outline the “mise en scène” or staging of the technical configuration of the Eucalyptus project; observations and results from the creative activity of the PDS in the context of two case studies; and speculate on the implications for design activity, pedagogy, and a more robust mode of participation.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	5509
authors	Koutamanis, Alexandros
year	1990
title	Development of a computerized handbook of architectural plans
source	Delft University of Technology
summary	The dissertation investigates an approach to the development of visual / spatial computer representations for architectural purposes through the development of the computerized handbook of architectural plans (chap), a knowledge-based computer system capable of recognizing the metric properties of architectural plans. This investigation can be summarized as an introduction of computer vision to the computerization of architectural representations: chap represents an attempt to automate recognition of the most essential among conventional architectural drawings, floor plans. The system accepts as input digitized images of architectural plans and recognizes their spatial primitives (locations) and their spatial articulation on a variety of abstraction levels. The final output of chap is a description of the plan in terms of the grouping formations detected in its spatial articulation. The overall structure of the description is based on an analysis of its conformity to the formal rules of its “stylistic” context (which in the initial version of chap is classical architecture). Chapter 1 suggests that the poor performance of computerized architectural drawing and design systems is among others evidence of the necessity to computerize visual / spatial architectural representations. A recognition system such as chap offers comprehensive means for the investigation of a methodology for the development and use of such representations. Chapter 2 describes a fundamental task of chap: recognition of the position and shape of locations, the atomic parts of the description of an architectural plan in chap. This operation represents the final and most significant part of the first stage in processing an image input in machine environment. Chapter 3 moves to the next significant problem, recognition of the spatial arrangement of locations in an architectural plan, that is, recognition of grouping relationships that determine the subdivision of a plan into parts. In the absence of systematic and exhaustive typologic studies of classical architecture that would allow us to define a repertory of the location group types possible in classical architectural plans, Chapter 3 follows a bottom-up approach based on grouping relationships derived from elementary architectural knowledge and formalized with assistance from Gestalt theory and its antecedents. The grouping process described in Chapter 3 corresponds both in purpose and in structure to the derivation of a description of an image in computer vision [Marr 1982]. Chapter 4 investigates the well-formedness of the description of a classical architectural plan in an analytical manner: each relevant level (or sublevel) of the classical canon according to Tzonis & Lefaivre [1986] is transformed into a single group of criteria of well-formedness which is investigated independently. The hierarchical structure of the classical canon determines the coordination of these criteria into a sequence of cognitive filters which progressively analyses the correspondence of the descriptions derived as in Chapter 3 to the constraints of the canon. The methodology and techniques presented in the dissertation are primarily considered with respect to chap, a specific recognition system. The resulting specification of chap gives a measure of the use of such a system within the context of a computerized collection of architectural precedents and also presents several extensions to other areas of architecture. Although these extensions are not considered as verifiable claims, Chapter 5 describes some of their implications, including on the role of architectural drawing in computerized design systems, on architectural typologies, and on the nature and structure of generative systems in architecture.
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	ab9c
authors	Kvan, Thomas and Kvan, Erik
year	1999
title	Is Design Really Social
source	International Journal of Virtual Reality, 4:1
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 see a danger here, a pattern being repeated which may lead us into less than useful activities. As with several (popular) architectural design or modelling systems already available, however, computer system implementations all too often are poor imitations manual systems. For example, few in the field will argue with the statement that the storage of data in layers in a computer-aided drafting system is an dispensable approach. Layers derive from manual overlay drafting technology [Stitt 1984] which was regarded as an advanced (manual) production concept at the time many software engineers were specifying CAD software designs. Early implementations of CAD systems (such as RUCAPS, GDS, Computervision) avoided such data organisation, the software engineers recognising that object-based structures are more flexible, permitting greater control of data editing and display. Layer-based systems, however, are easier to implement in software, more familiar to the user and hence easier to explain, initially easier to use but more limiting for an experienced and thoughtful user, leading in the end to a lesser quality in resultant drawings and significant problems in output control (see Richens [1990], pp. 31-40 for a detailed analysis of such features and constraints). Here then we see the design for architectural software faithfully but inappropriately following manual methods. So too is there a danger of assuming that the best social interaction is that done face-to-face, therefore all collaborative design communications environments must mimic face-to-face.
series	journal paper
email
last changed	2003/05/15 10:29

_id	e91f
authors	Mitchell, W.J., Liggett, R.S. and Tan, M.
year	1990
title	Top-Down Knowledge-Based Design
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 137-148
summary	Traditional computer drafting systems and three- dimensional geometric modeling systems work in bottom-up fashion. They provide a range of graphic primitives, such as vectors, arcs, and splines, together with operators for inserting, deleting, combining, and transforming instances of these. Thus they are conceptually very similar to word processors, with the difference that they operate on two- dimensional or three-dimensional patterns of graphic primitives rather than one-dimensional strings of characters. This sort of system is effective for input and editing of drawings or models that represent existing designs, but provides little more help than a pencil when you want to construct from scratch a drawing of some complex object such as a human figure, an automobile, or a classical column: you must depend on your own knowledge of what the pieces are and how to shape them and put them together. If you already know how to draw something then a computer drafting system will help you to do so efficiently, but if you do not know how to begin, or how to develop and refine the drawing, then the efficiency that you gain is of little practical consequence. And accelerated performance, flashier color graphics, or futuristic three-dimensional modes of interaction will not help with this problem at all. By contrast, experienced expert graphic artists and designers usually work in top-down fashion-beginning with a very schematic sketch of the whole object, then refining this, in step-by-step fashion, till the requisite level of precision and completeness is reached. For example, a figure drawing might begin as a "stick figure" schema showing lengths and angles of limbs, then be developed to show the general blocking of masses, and finally be resolved down to the finest details of contour and surface. Similarly, an architectural drawing might begin as a parti showing just a skeleton of construction lines, then be developed into a single-line floor plan, then a plan showing accurate wall thicknesses and openings, and finally a fully developed and detailed drawing.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	cf2011_p093
id	cf2011_p093
authors	Nguyen, Thi Lan Truc; Tan Beng Kiang
year	2011
title	Understanding Shared Space for Informal Interaction among Geographically Distributed Teams
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. 41-54.
summary	In a design project, much creative work is done in teams, thus requires spaces for collaborative works such as conference rooms, project rooms and chill-out areas. These spaces are designed to provide an atmosphere conducive to discussion and communication ranging from formal meetings to informal communication. According to Kraut et al (E.Kraut et al., 1990), informal communication is an important factor for the success of collaboration and is defined as ‚Äúconversations take place at the time, with the participants, and about the topics at hand. It often occurs spontaneously by chance and in face-to-face manner. As shown in many research, much of good and creative ideas originate from impromptu meeting rather than in a formal meeting (Grajewski, 1993, A.Isaacs et al., 1997). Therefore, the places for informal communication are taken into account in workplace design and scattered throughout the building in order to stimulate face-to-face interaction, especially serendipitous communication among different groups across disciplines such as engineering, technology, design and so forth. Nowadays, team members of a project are not confined to people working in one location but are spread widely with geographically distributed collaborations. Being separated by long physical distance, informal interaction by chance is impossible since people are not co-located. In order to maintain the benefit of informal interaction in collaborative works, research endeavor has developed a variety ways to shorten the physical distance and bring people together in one shared space. Technologies to support informal interaction at a distance include video-based technologies, virtual reality technologies, location-based technologies and ubiquitous technologies. These technologies facilitate people to stay aware of other‚Äôs availability in distributed environment and to socialize and interact in a multi-users virtual environment. Each type of applications supports informal interaction through the employed technology characteristics. One of the conditions for promoting frequent and impromptu face-to-face communication is being co-located in one space in which the spatial settings play as catalyst to increase the likelihood for frequent encounter. Therefore, this paper analyses the degree to which sense of shared space is supported by these technical approaches. This analysis helps to identify the trade-off features of each shared space technology and its current problems. A taxonomy of shared space is introduced based on three types of shared space technologies for supporting informal interaction. These types are named as shared physical environments, collaborative virtual environments and mixed reality environments and are ordered increasingly towards the reality of sense of shared space. Based on the problem learnt from other technical approaches and the nature of informal interaction, this paper proposes physical-virtual shared space for supporting intended and opportunistic informal interaction. The shared space will be created by augmenting a 3D collaborative virtual environment (CVE) with real world scene at the virtual world side; and blending the CVE scene to the physical settings at the real world side. Given this, the two spaces are merged into one global structure. With augmented view of the real world, geographically distributed co-workers who populate the 3D CVE are facilitated to encounter and interact with their real world counterparts in a meaningful and natural manner.
keywords	shared space, collaborative virtual environment, informal interaction, intended interaction, opportunistic interaction
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	2005_115
id	2005_115
authors	Oxman, Rivka and Rotenstreich, Ruth
year	2005
title	Conceptual Content of Digital Design
source	Digital Design: The Quest for New Paradigms [23nd eCAADe Conference Proceedings / ISBN 0-9541183-3-2] Lisbon (Portugal) 21-24 September 2005, pp. 115-121
doi	https://doi.org/10.52842/conf.ecaade.2005.115
summary	Concepts related to digital architecture have begun to occupy a central role in current architectural discourse. Design concepts that have been the conceptual content of this discourse are now becoming integrated into the general architectural discourse. The research reports on this process of the emergence, migration, and crystallization of a new conceptual structure over the past decade under the influence of digital design and its emerging conceptual structure. The research presented in this paper examines the emergence of new ideas in architectural thinking that are related to digital architecture since 1990 until today. In order to demonstrate this shift, we have selected a representative architectural building type that is strongly and directly influenced by the conceptual content of the cultural discourse in architecture. A museum type was selected to represent features of the expression that reflects the changes and evolution of conceptual structures that underlie digital design. The research methodology is based on a method known as “content analysis”. Content analysis in our research was de- fined as including textual material in books, book chapters, essays, articles, and historical documents. A new approach for Design Content Analysis was accomplished employing the ICF analytical framework. In order to conduct a content analysis the text was coded and was broken down into categories on a variety of theoretical design themes. Our findings demonstrate that certain expressions related to digital technology have moved up from a low level descriptive function to a significant conceptual role in formulating the design content of architectural design. In our paper we describe the research, methodology findings and contribution to the definition of the conceptual content of contemporary architectural discourse on digital architecture.
keywords	Digital Design, Digital Architecture, Content Analysis, Conceptual Design
series	eCAADe
email
last changed	2022/06/07 08:00

_id	0565
authors	Oxman, Robert and Oxman, Rivka
year	1990
title	The Computability of Architectural Knowledge
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 171-185
summary	In an important contribution to the theoretical foundation of design computing, Mitchell noted "an increasingly urgent need to establish a demonstrably sound, comprehensive, rigorously formalized theoretical foundation upon which to base practical software development efforts" (Mitchell, 1986). In this paper we propose such a theoretical framework. A basic assumption of this work is that the advancement of design computing is dependent upon the emergence of a rigorous formulation of knowledge in design. We present a model of knowledge in architectural design which suggests a promising conceptual basis for dealing with knowledge in computer-aided design systems. We require models which can represent the formal knowledge and manipulative operations of the designer in all of their complexity-that is formal models rather than just geometric models. Shape Grammars (Stiny,1980) represent an example of such models, and constitute a relatively high level of design knowledge as compared to, for example, use of symmetry operations to generate simple formal configurations. Building upon an understanding of the classes of design knowledge as the conceptual basis for formal modeling systems may contribute a new realization of the potential of the medium for design. This will require a comprehensive approach to the definition of architectural and design knowledge. We consider here the implications of a well-defined body of architectural and design knowledge for design education and the potential mutual interaction-in a knowledge-rich environment-of design learning and CAAD learning. The computational factors connected with the representation of design knowledge and its integration in design systems are among the key problems of CAAD. Mitchell's model of knowledge in design incorporates formal knowledge in a comprehensive, multi-level, hierarchical structure in which types of knowledge are correlated with computational concepts. In the main focus of this paper we present a structured, multi-level model of design knowledge which we discuss with respect to current architectural theoretical considerations. Finally, we analyze the computational and educational relevance of such models.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	4ec7
authors	Papper, Mike
year	1990
title	Using high-level constraints to aid space planning applications in computer-aided design
source	University of Toronto, Department of Computer Science
summary	This thesis describes a system that aids in solving space planning and layout design problems through an innovative use of constraints. Space planning problem solving is aided by constrained manipulation, a trial-and-error approach, and modelling the scaling properties of objects. Constraints are used to model various physical properties of solid objects (including gravity and friction) and to control the way in which objects scale. The system runs on a Silicon Graphics workstation supporting interactive, real-time, 3-dimensional graphics that aid in visualizing designs. The problems handled by our prototype are restricted to objects representable with rectangular solids oriented along the cartesian axes. This system was used by designers and novice computer users to solve a studio layout problem. Constraints were found to aid in the manipulation of objects by providing predictable behaviour for objects. The test results indicate that subjects learn the behaviour of objects easily and use this information in useful ways. In addition, there are indications that constraints can reduce users' cognitive loads at the user interface level. The coupling of constraints with the interactive, 3-dimensional aspect of the system encourages the use of the system at earlier stages of the design process than simple geometric drafting systems. (Abstract shortened by UMI.)
series	thesis:MSc
email
last changed	2003/02/12 22:37

_id	1c67
authors	Sanchez, S., Zulueta A., and Barrallo J.
year	1999
title	Bilbao: The Revitalisation of a City
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 694-699
doi	https://doi.org/10.52842/conf.ecaade.1999.694
summary	The city of Bilbao has suffered in the last decade a deep transformation. After a glorious industrial past, Bilbao was in 1990 a depressed city, and the strategies necessary to transform an industrial city into a service capital were no simple due to the high level of pollution and unemployment rate. The "Bilbao Metropoli-30" Association was created to coordinate the synergetic action of all the involved institutions: City Hall, Basque Country and Spanish Governments, financial institutions, transport companies, airport and port, etc. But it was also necessary the acceptance of the public opinion to recover the illusion and the lost pride of the city. The desolated social scene was not adequate for revolutionary designs like the winding Frank Gehry's Bilbao Guggenheim Museum, or the cavernous Norman Foster's underground. This work pretends to show the means and strategies, especially computational, that allowed the transformation of Bilbao with an enthusiastic citizen support.
keywords	Metropolitan Bilbao, City Revitalisation, Architectural Computer Simulation
series	eCAADe
email
last changed	2022/06/07 07:56

_id	8a0c
authors	Tan, Milton
year	1990
title	Saying What It Is by What It Is Like - Describing Shapes Using Line Relationships
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 201-213
summary	Shapes - taken as well-defined collections of lines - are fundamental building blocks in architectural drawings. From doodles to shop drawings, shapes are used to denote ideas and represent elements of design, many of which ultimately translate into actual objects. But because designs evolve, the shapes representing a design are seldom static - instead, they are perpetually open to transformations. And since transformations involve relationships, conventional methods of describing shapes as sets of discrete endpoints may not provide an appropriate foundation for schematic design. This paper begins with a review of the perception of shapes and its significance in design. In particular, it argues that juxtapositions and inter-relationships of shapes are important seedbeds for creative development of designs. It is clear that conventional representation of shapes as sets of discrete lines does not cope with these -emergent" subshapes; the most basic of which arise out of intersecting and colinear lines. Attempts to redress this by using ‘reduction rules’ based on traditional point-and-line data structures are encumbered by computational problems of precision and shape specification. Basically, this means that some ‘close’ cases of sub-shapes may escape detection and their specifications are difficult to use in substitution operations. The paper presents the findings of a computer project - Emergence II - which explored a 'relational' description of shapes based on the concept of construction lines. It builds on the notion that architectural shapes are constructed in a graphic context and that, at a basic compositional level, the context can be set by construction lines. Accordingly, the interface enables the delineation of line segments with reference to pre-established construction lines. This results in a simple data structure where the knowledge of shapes is centralized in a lookup table of all its construction lines rather than dispersed in the specifications of line segments. Taking this approach, the prototype software shows the ease and efficiency of applying ‘reduction rules’ for intersection and colinear conditions, and for finding emergent sub-shapes by simply tracking the construction lines delimiting the ends of line segments.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	e80e
authors	Van der Does, Jan
year	1993
title	Visualising by Means of Endoscope, Computer and Hand-Drawn Techniques
source	Endoscopy as a Tool in Architecture [Proceedings of the 1st European Architectural Endoscopy Association Conference / ISBN 951-722-069-3] Tampere (Finland), 25-28 August 1993, pp. 167-180
summary	Traditionally, communication during the various stages of the building process takes place via drawings of floor plans, elevations, perspectives and scale models. Computerized drawing techniques have recently come into use. Ways of presenting designs have increasingly become of far-reaching importance in current architecture. Nowadays architectural firms employ specialists who are familiar with the latest developments in the field of presentation techniques, or they farm this highly significant part of their job out to gifted designers. Some of the new techniques being developed endeavor to provide a more realistic presentation of designs of housing estates. Apart from new drawing techniques, mention should also be made of the endoscope, an instrument which can simulate an eye-level tour around a scale model while recording it on videotape. Realistic representations differ quite a lot from the conventional architectural presentation techniques applied, which require a larger amount of imagination on the part of the onlookers. The afore mentioned architectural notation systems, on the one hand, can only be understood by experts, in spite of added explanatory signs and symbols. The often used models and artist’s impressions, on the other hand, frequently create a somewhat distorted view, due to lack of concern for spatial proportions. As a consequence, the design presented and the actual architectural realisation may turn out to differ widely. To bridge the widening gap between the experts and the users, clients and government officials, research concerning architectural representation is needed. In 1990 a Dutch scientific journal, issued by The Delft University, published an illustrated report of research findings under the title Overdracht en Simulatie (Information and Simulation). The article gives a description of a pilot study carried out by a research team (Van Der Does, Van Haaften, Kegel and Vrins) to assess and evaluate various presentation techniques used in architecture. This study was just a first step towards a more detailed follow-up study, to which I shall come back after having given a summarized view of the pilot study.
keywords	Architectural Endoscopy
series	EAEA
more	http://info.tuwien.ac.at/eaea/
last changed	2005/09/09 10:43

_id	a7f0
authors	Van Emmerick, M.J.G.M.
year	1990
title	Interactive design of parameterized 3D models by direct manipulation
source	Delft University Press
summary	The practical applicability of a computer-aided design system is strongly influenced by both the user interface and the internal model representation. A well designed user interface facilitates the communication with the system by offering an intuitive environment for for specification and representation of model information. An internal model representation, capable of storing geometric, topological and hierarchical dependencies between components in a model, increases the efficiency of the system by facilitating modification and elaboration of the model during the different stages of the design process. The subject of this thesis is the integration of a high level parameterized model representation with direct manipulation interface techniques for the design of three-dimensional objects. A direct manipulation interface enables the user to specify a model by interaction on a graphical representation, as an alternative for an abstract and error-prone apha-numerical dialogue style. A high level model representation is obtained by using a procedural modeling language with general purpose control structures, including arithmetic and logical expressions, repetition, conditionals, functions and procedures, and dedicated data types such as coordinate systems, geometric primitives and geometric constraints. The language interpreter is interconnected with a graphical interface, an incremental constraint solver and a geometrical modeler, using visual programming techniques. The developed techniques are implemented in a modeling system called GeoNode. The system incorporates paradigms of object-oriented design, with respect to both the user interface and to the system implementation. The applicability of the presented techniques is illustrated by examples in application domains such as solid modeling, kinematic analysis, feature modeling and top-down design.
series	other
last changed	2003/04/23 15:14

_id	1e97
authors	Wojtowicz, Jerzy
year	1990
title	Aspects of design logic and Le Corbusier's universe of forms
source	Harvard University, Graduate School of Design
summary	Generation of form in architectural design tends to become a highly structured process when computational tools are engaged. The objective of this study was to develop an alternative way of designing with a computer--one that is not framed by assumptions of monotonicity and determinism. To realize this aim the case study method was chosen. It was followed by formalization and design etudes rooted in a specific corpus of significant design work. A corpus of work was isolated from Le Corbusier's Oeuvre complete to serve as the vehicle for: (a) Construction, using shape grammar rules of a dynamic model of a concise design world. (b) Analysis of the process of rupture and dialectic which results in the fundamental transformation of the design world. (c) Generation of existing and new examples in the given language. (d) Examination of the limitations of the shape grammar formalism and proposal of alternatives formalisms based on non-monotonic logic. Le Corbusier's purist tradition, selected as the corpus for this study, is characterized by formal continuity followed by a sudden rupture in its formal language. The issue of change and collapse of one design world into a new one was therefore the focus of the investigation. The method that was developed interprets the formal procedure of examining the architectural object as 'reading' and the procedure of generating the architectural object as 'writing'. Design is seen as a continuous feedback loop between reading and writing within the boundaries of a given universe of forms. This is demonstrated by abstracting an architectural vocabulary and compositional rules from Le Corbusier's purist work, translating the vocabulary into a set of computer models, and using the computer to transform and recompose these elements into new designs.
keywords	Data Processing; Composition; Proportion; Data Processing
series	thesis:PhD
email
last changed	2003/03/11 09:59

_id	4ac0
authors	Balachandran, M. B. and Gero, John S.
year	1990
title	Knowledge Engineering and Multicriteria Optimization
source	Berlin: Springer-Verlag, 1990. pp. 115-147. CADLINE has abstract only
summary	Many aspects of optimization, including problem formulation, algorithm selection and the interpretation of results require human judgment and experience, and are traditionally carried out by humans. Recently developed knowledge-based system methodologies now allow us to incorporate different forms of knowledge required to carry out such non-numeric tasks. The role and effectiveness of knowledge-based methodologies in multicriteria optimization are described and illustrated with examples
keywords	design, multicriteria, optimization, knowledge base
series	CADline
email
last changed	2003/06/02 13:58

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