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	235d
authors	Catalano, Fernando
year	1990
title	The Computerized Design Firm
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. 317-332
summary	This paper is not just about the future of computerized design practice. It is about what to do today in contemplation of tomorrow-the issues of computercentered practice and the courses of action open to us can be discerned by the careful observer. The realities of computerized design practice are different from the issues on which design education still fixes its attention. To educators, the present paper recommends further clinical research on computerized design firms and suggests that case studies on the matter be developed and utilized as teaching material. Research conducted by the author of this paper indicates that a new form of design firm is emerging-the computerized design firm-totally supported and augmented by the new information technology. The present paper proceeds by introducing an abridged case study of an actual totally electronic, computerized design practice. Then, the paper concentrates on modelling the computerized design firm as an intelligent system, indicating non-trivial changes in its structure and strategy brought about by the introduction of the new information technology into its operations - among other considerations, different strategies and diverse conceptions of management and workgroup roles are highlighted. In particular, this paper points out that these structural and strategic changes reflect back on the technology of information with pressures to redirect present emphasis on the individual designer, working alone in an isolated workstation, to a more realistic conception of the designer as a member of an electronic workgroup. Finally, the paper underlines that this non-trivial conception demands that new hardware and software be developed to meet the needs of the electronic workgroup - which raises issues of human-machine interface. Further, it raises the key issues of how to represent and expose knowledge to users in intelligent information - sharing systems, designed to include not only good user interfaces for supporting problem-solving activities of individuals, but also good organizational interfaces for supporting the problem-solving activities of groups. The paper closes by charting promising directions for further research and with a few remarks about the computerized design firm's (near) future.
series	CAAD Futures
last changed	1999/04/03 17:58

_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	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	4d0d
authors	Angelil, Mark
year	1990
title	Experiments as Modus Operandi
source	Journal of Architectural Education. November, 1990. Vol. 44: pp. 37-48 : 9 p. of ill
summary	Architecture has for too long focused on the presentation of pristine objects and the presentation in drawing form. A critical understanding of the field, however, necessitates a reevaluation of the roles of the process involved in the production of building. Rather than emphasizing surface appearances, an architecture rooted in process aims ultimately at revealing the fundamental and deep structures inherent within the making of architecture. One of the primary tasks of the process is to provoke intuition and ingenuity - and the awareness that both are founded on knowledge - and that knowledge must be applied with imagination. The experiment presented here developed sequentially with a defined structure to the process of design, moving gradually from the abstract into the concrete, thereby attempting and understanding of what Roland Barthes identified as 'concrete abstraction.'
keywords	design process, architecture, knowledge, experimentation
series	CADline
last changed	1999/02/12 15:07

_id	298e
authors	Dave, Bharat and Woodbury, Robert
year	1990
title	Computer Modeling: A First Course in Design Computing
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. 61-76
summary	Computation in design has long been a focus in our department. In recent years our faculty has paid particular attention to the use of computation in professional architectural education. The result is a shared vision of computers in the curriculum [Woodbury 1985] and a set of courses, some with considerable historyland others just now being initiated. We (Dave and Woodbury) have jointly developed and at various times over the last seven years have taught Computer Modeling, the most introductory of these courses. This is a required course for all the incoming freshmen students in the department. In this paper we describe Computer Modeling: its context, the issues and topics it addresses, the tasks it requires of students, and the questions and opportunities that it raises. Computer Modeling is a course about concepts, about ways of explicitly understanding design and its relation to computation. Procedural skills and algorithmic problem solving techniques are given only secondary emphasis. In essential terms, the course is about models, of design processes, of designed objects, of computation and of computational design. Its lessons are intended to communicate a structure of such models to students and through this structure to demonstrate a relationship between computation and design. It is hoped that this structure can be used as a framework, around which students can continue to develop an understanding of computers in design.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	0f73
authors	Ervin, Stephen M.
year	1990
title	Designing with Diagrams: A Role for Computing in Design Education and Exploration
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. 107-122
summary	Environmental designers, design educators and design students using computers are a constituency with a set of requirements for database structure and flexibility, for knowledge representation and inference mechanisms, and for both graphical and non-graphical operations, that are now articulatable and to-date largely unmet. This is especially so in the area called 'preliminary' or 'schematic' design, where our requirements are related to, but different from, those of our colleagues in mechanical and electrical engineering, whose needs have dominated the notable developments in this area. One manifestation of these needs is in the peculiar form of graphics called diagrams , and the ways in which environmental designers (architects, landscape architects., urban designers) use them. Our diagrams are both similar to and different from structural, circuit, or logical diagrams in important ways. These similarities and differences yield basic insights into designing and design knowledge, and provide guidance for some necessary steps in the development of the next generation of CAD systems. Diagrams as a form of knowledge representation have received little scrutiny in the literature of graphic representation and computer graphics. In the following sections I present an overview of the theoretical basis for distinguishing and using diagrams; examine some of the computational requirements for a system of computer-aided diagramming; describe a prototype implementation called CBD (Constraint Based Diagrammer) and illustrate one example of its use; and speculate on the implications and potential applications of these ideas in computer-aided design education.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	e496
authors	Gero, John S. and Maher, Mary Lou
year	1990
title	Theoretical Requirements for Creative Design by Analogy
source	Formal Methods in Engineering Design, Manufacturing and Assembly, International Workshop (1st. : 1990 : Fort Collins, Colorado). editor. P Fitzhorn. pp. 19-27. CADLINE has abstract only.
summary	This paper adopts the conceptual schema 'prototypes' as its base for representing function-behavior-structure relationships. Within this representation design by a transformational analogy is presented as a selection process on either function or structure which then transforms the structure or function respectively
keywords	prototypes, creativity, design process
series	CADline
email
last changed	2003/06/02 13:58

_id	eee2
authors	Gero, John S. and Rosenman, Michael A.
year	1989
title	A Conceptual Framework for Knowledge-Based Design Research at Sydney University's Design Computing Unit
source	Southampton/Berlin: CMP/Springer- verlag, 1989. pp. 363-382. Published also in Artificial Intelligence in Engineering 5(2):363-383, 1990
summary	This paper presents the conceptual framework behind the Design Computing Unit's knowledge-based design research. It commences with a brief overview before introducing the role of experience in design. The conceptual schema 'prototypes' is introduced and described within a framework of design as transforming required or expected functions to structure descriptions. Current projects related to this conceptual framework are briefly described
keywords	CAD, knowledge base, design, prototypes, representation
series	CADline
email
last changed	2003/06/02 13:58

_id	bc8d
authors	Mitchell, W.
year	1990
title	Digital Design Media
source	Ciudad de Bits. Space, Place and the Infobahn
summary	In Digital Design Media, Second Edition, architects and related design professionals will find a complete conceptual guide to the multidimensional world of computer-aided design. In contrast to the many books that describe how to use particular programs (and which therefore go out of date very quickly), Digital Design Media constructs a lasting theoretical framework, which will make it easier to understand a great number of programs-existing and future-as a whole. Clear structure, numerous historical references, and hundreds of illustrations make this framework both accessible to the nontechnical professional and broadening for the experienced computer-aided designer. The book will be especially valuable to anyone who is ready to expand their work in CAD beyond production drafting systems. The new second edition adds chapters one merging technologies, such as the Internet, but the book's original content is as valid as ever. Thousands of design students and practitioners have made this book a standard.
series	other
last changed	2003/04/23 15:14

_id	2005_115
id	2005_115
authors	Oxman, Rivka and Rotenstreich, Ruth
year	2005
title	Conceptual Content of Digital Design
doi	https://doi.org/10.52842/conf.ecaade.2005.115
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
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	22de
authors	Oxman, Rivka E.
year	1990
title	The Role of Knowledge-Based Systems in Design and Design Education
source	Int. J. Appl. Enging, Ed England: Pergamon Press, 1990. vol. 6: pp. 255-264 : ill. includes bibliography.
summary	This paper investigates the role of Artificial Intelligence and Knowledge Based Design in the emergence of a 'general design science' common to all engineering design. The advantages of the design shell's approach is demonstrated relative to the utilization of expert systems for design. The design shell is proposed as a medium to accommodate the characteristics of design knowledge. The significance of this concept is discussed with respect to formalization of knowledge, implementation, application and operation in knowledge based systems. GRPS - a generative prototype refinement design shell is defined and elaborated. A system applying this concept in a significant structure of generic knowledge in architectural design is demonstrated. It utilizes a method for representing structured knowledge by exploiting the characteristics of both rules and frames, and integrates them in a prototype based design system. Finally, the significance of such an approach in research and design teaching is discussed
keywords	design, education, knowledge base, expert systems, frames, architecture
series	CADline
email
last changed	2003/06/02 13:58

_id	29b6
authors	Oxman, Rivka
year	1990
title	Architectural Knowledge Structures as "Design Shells": A Knowledge-Based View of Design and CAAD Education
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. 187-199
summary	The concept of a knowledge based design shell is proposed as a basis for teaching design. The significance of the concept of design shell is discussed with respect to formalization, implementation, application and operation. GPRS-a generative prototype refinement design shell-is proposed, defined and elaborated. A plan type is introduced as one significant kind of structure of knowledge in architectural design is introduced. A method for representing syntactic and the semantic content to be used in design refinement is proposed. The method exploits the characteristics of both rules and frames, and integrates them in a prototype-based design system. This is demonstrated in a system called PRODS. Finally, the significance of such an approach in teaching is discussed.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_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	9a86
authors	Romiszowski, A.J.
year	1990
title	Designing Instructional Systems
source	Kogan Page Ltd, London
summary	Deals with the major areas of decision making that face the instructional designer at the beginning of a project; establishing the needs and developing the objectives of a curriculum, and producing detailed plans for the structure, methods and evaluation system to be used. The book establishes basic principles from an analysis of current theory and practice. The author complements this with practical advice, presenting useful techniques for analyzing problems, establishing needs and selecting from alternatives. This is a comprehensive handbook for decision making in course planning and instructional design.
series	other
last changed	2003/04/23 15:14

_id	0278
authors	Saalman, Howard
year	1990
title	Goodness and Value in the Structure of Cognitive Processes
source	Journal of Architectural Education Summer, 1990. vol. 43: pp. 3-7. includes bibliography.
summary	This paper had its origins in a course entitled 'Basic Concepts in Architecture' which the author has been teaching for about ten years at Carnegie Mellon University. The course is designed to give architects a basis for understanding notions like process (including the architectural process), for developing functioning theories to determine the 'goodness' of things (including their own designs), in short, an approach to problems of cognition, of perception and of response to perceptions. They become aware, perhaps for the first time, of the precise significance of numbers in their design work, including the dreaded demons of 'nothing' and 'infinity.' They learn the meaning of time: it is the sum of perceptions involved in any process, including the process of getting to know things. Control over the design process is what architects must have so they can function effectively, and make the right decisions. Learning about these things is the goal of the course
keywords	design process, architecture, education, cognition, perception, performance, control
series	CADline
last changed	1999/02/12 15:09

_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

_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	c4db
authors	Tan, Milton
year	1990
title	Closing in on an Open Problem: Reasons and a Strategy to Encode Emergent Subshapes
doi	https://doi.org/10.52842/conf.acadia.1990.005
source	From Research to Practice [ACADIA Conference Proceedings] Big Sky (Montana - USA) 4-6 October 1990, pp. 5-19
summary	The interpretation of drawings, by breaking them into subshapes and classifying these subshapes, is an essential part of creative designing. Drawings must be open to different interpretations - i.e. different decompositions into parts, and classification of these parts in different ways - but conventional CAD systems do not readily allow this. Their data structures are too inflexible, and they do not provide subshape or implied-shape recognition capabilities. This paper discusses the centrality of emergent forms in the design process and proposes a datastructure based on construction lines and ordered lists which enables shapes as collection of lines and arcs to be efficiently encoded. The strategy to build a design tool around this data structure is also presented.
series	ACADIA
email
last changed	2022/06/07 07:56

_id	cd2d
authors	Tham, K.W., H.S. Lee and Gero, John S.
year	1990
title	Building Envelope Design Using Design Prototypes
source	St Louis, Missouri: 1990
summary	CADLINE has abstract only. A knowledge-based system for the design of building envelopes using design prototypes is described. The notion of design prototypes and the architecture of a design system utilizing design prototypes for routine design are presented. Design prototypes are schemas for representing design knowledge comprehensively, providing descriptions of structure, behavior and function, and how these are interrelated to facilitate design. The authors identify the processes associated with such a model of design. The approach is object-centered. Examples are drawn from the building envelope design domain, demonstrating how design prototypes are structured and utilized in routine design. Considerations are given to energy, lighting and acoustic performance
keywords	building, envelope, knowledge base, systems, prototypes, automation, applications, energy, lighting, acoustics
series	CADline
email
last changed	2003/06/02 13:58

_id	ddss9503
id	ddss9503
authors	Wineman, Jean and Serrato, Margaret
year	1994
title	Visual and Spatial Analysis in Office Design
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	The demands for rapid response to complex problems, flexibility, and other characteristics of today's workplace, such as a highly trained work force, have led many organizations to move from strict hierarchical structures to a more flexible project team organization. The organizational structure is broader and flatter, with greater independence given to organizational units, in this case the project teams. To understand the relationship between project team communication patterns and the design and layout of team space, a study was conducted of an architectural office before and after a move to new space. The study involved three project teams. Information was collected on individual communication patterns; perceptions of the ease of communication; and the effectiveness of the design and layout of physical space to support these communications. In order to provide guidance for critical decision-making in design, these communication data were correlated with a series of measures for the specification of team space enclosure and layout. These group/team space measures were adaptations of existing measures of individual work space, and included an enclosure measure, based on an enclosure measure developed by Stokols (1990); a measure of visual field, based on the "isovist" fields of Benedikt (1979); and an "integration" measure, based on the work of Hillier and Hanson (1984). Results indicate both linear and non-linear relationships between interaction patterns and physical space measures. This work is the initial stage of a research program to define a set of specific physical measures to guide the design of supportive work space for project teams and work groups within various types of organizations.
series	DDSS
email
last changed	2003/08/07 16:36

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