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	ddss2008-02
id	ddss2008-02
authors	Gonçalves Barros, Ana Paula Borba; Valério Augusto Soares de Medeiros, Paulo Cesar Marques da Silva and Frederico de Holanda
year	2008
title	Road hierarchy and speed limits in Brasília/Brazil
source	H.J.P. Timmermans, B. de Vries (eds.) 2008, Design & Decision Support Systems in Architecture and Urban Planning, ISBN 978-90-6814-173-3, University of Technology Eindhoven, published on CD
summary	This paper aims at exploring the theory of the Social Logic of Space or Space Syntax as a strategy to define parameters of road hierarchy and, if this use is found possible, to establish maximum speeds allowed in the transportation system of Brasília, the capital city of Brazil. Space Syntax – a theory developed by Hillier and Hanson (1984) – incorporates the space topological relationships, considering the city shape and its influence in the distribution of movements within the space. The theory’s axiality method – used in this study – analyses the accessibility to the street network relationships, by means of the system’s integration, one of its explicative variables in terms of copresence, or potential co-existence between the through-passing movements of people and vehicles (Hillier, 1996). One of the most used concepts of Space Syntax in the integration, which represents the potential flow generation in the road axes and is the focus of this paper. It is believed there is a strong correlation between urban space-form configuration and the way flows and movements are distributed in the city, considering nodes articulations and the topological location of segments and streets in the grid (Holanda, 2002; Medeiros, 2006). For urban transportation studies, traffic-related problems are often investigated and simulated by assignment models – well-established in traffic studies. Space Syntax, on the other hand, is a tool with few applications in transport (Barros, 2006; Barros et al, 2007), an area where configurational models are considered to present inconsistencies when used in transportation (cf. Cybis et al, 1996). Although this is true in some cases, it should not be generalized. Therefore, in order to simulate and evaluate Space Syntax for the traffic approach, the city of Brasília was used as a case study. The reason for the choice was the fact the capital of Brazil is a masterpiece of modern urban design and presents a unique urban layout based on an axial grid system considering several express and arterial long roads, each one with 3 to 6 lanes,
keywords	Space syntax, road hierarchy
series	DDSS
last changed	2008/09/01 17:06

_id	452c
authors	Vanier, D. J. and Worling, Jamie
year	1986
title	Three-dimensional Visualization: A Case Study
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 92-102
summary	Three-dimensional computer visualization has intrigued both building designers and computer scientists for decades. Research and conference papers present an extensive list of existing and potential uses for threedimensional geometric data for the building industry (Baer et al., 1979). Early studies on visualization include urban planning (Rogers, 1980), treeshading simulation (Schiler and Greenberg, 1980), sun studies (Anon, 1984), finite element analysis (Proulx, 1983), and facade texture rendering (Nizzolese, 1980). With the advent of better interfaces, faster computer processing speeds and better application packages, there had been interest on the part of both researchers and practitioners in three-dimensional -models for energy analysis (Pittman and Greenberg, 1980), modelling with transparencies (Hebert, 1982), super-realistic rendering (Greenberg, 1984), visual impact (Bridges, 1983), interference clash checking (Trickett, 1980), and complex object visualization (Haward, 1984). The Division of Building Research is currently investigating the application of geometric modelling in the building delivery process using sophisticated software (Evans, 1985). The first stage of the project (Vanier, 1985), a feasibility study, deals with the aesthetics of the mode. It identifies two significant requirements for geometric modelling systems: the need for a comprehensive data structure and the requirement for realistic accuracies and tolerances. This chapter presents the results of the second phase of this geometric modelling project, which is the construction of 'working' and 'presentation' models for a building.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	0a6e
authors	Walters, Roger
year	1986
title	CAAD: Shorter-term Gains; Longerterm Costs?
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 185-196
summary	Assessment of CAAD systems in use is complex: it needs careful qualifications and is often contradictory. It is suggested that little progress has been made in making sense of the impacts of computing on design and design organizations. Impacts are more diverse and complicated than has been assumed. Assessments tend to be either overtly optimistic or pessimistic, yet the need is to be realistic. Moreover, impacts have been the subject of speculation and marketing rather than systematic study. Carefully documented case studies of projects or longitudinal studies of organizational impacts remain the exception. This chapter draws upon recorded user experience reported elsewhere (Walters, 1983)' and presents an assessment of the performance in use of current production systems. It presents an end-user view and also identifies a number of outstanding design research topics It is suggested that different systems in different organizations in different settings will give rise to new impacts. A wide variety of outcomes is possible. It seems unlikely that any simple set of relationships can account for all the data that inquiry reveals. The task becomes one of identifying variables that lead to differential outcomes, as the same cause may lead to different effects (Attewell and Rule, 1984). This becomes a long-term task. Each optimistic impact may be countered by some other more pessimistic impact. Moreover, the changes brought about on design by computing are significant because both beneficial and non- beneficial impacts are present together. Impacts are held in a dynamic balance that is subject to constant evolution. This viewpoint accounts for otherwise conflicting conclusions. It is unlikely that the full range of impacts is yet known, and a wide range of impacts and outcomes already need to be taken into account. It seems that CAD alone cannot either guarantee improved design or that it inevitably leads to some diminished role for the designer. CAD can lead to either possible outcome, depending upon the particular combination of impacts present. Careful matching of systems to design organization and work environment is therefore needed. The design management role becomes crucial.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	8860
authors	Choi, B.K., Barash, M.M. and Anderson, D.C.
year	1984
title	Automatic Recognition of Machined Surfaces from a 3D Solid Model
source	computer Aided Design. March, 1984. vol. 16: pp. 81-86 : ill. includes bibliography
summary	It has been proposed that a direct link between CAD and CAM be provided through a computer-automated process planning system. Described in this paper are algorithmic procedures to identify machined surfaces (i.e., machining requirements) for a workpiece directly from its 3D geometric description. A machined surface is a portion of workpiece that can be generated by a certain mode of metal removal operation. Machined surfaces are algorithmically recognized from a 3D boundary file, and then their 2 1/2D descriptions are obtained in a data structure (format) suitable for an automated process planning system. A simplified boundary file data structure is introduced in order to explain the machined surface recognition procedures
keywords	A machined surface type is defined as a pattern of faces, and a syntactic pattern recognition method is used to find the machined surface from the boundary file
series	CADline
last changed	2003/06/02 13:58

_id	ecaadesigradi2019_449
id	ecaadesigradi2019_449
authors	Becerra Santacruz, Axel
year	2019
title	The Architecture of ScarCity Game - The craft and the digital as an alternative design process
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 3, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 45-52
doi	https://doi.org/10.52842/conf.ecaade.2019.3.045
summary	The Architecture of ScarCity Game is a board game used as a pedagogical tool that challenges architecture students by involving them in a series of experimental design sessions to understand the design process of scarcity and the actual relation between the craft and the digital. This means "pragmatic delivery processes and material constraints, where the exchange between the artisan of handmade, representing local skills and technology of the digitally conceived is explored" (Huang 2013). The game focuses on understanding the different variables of the crafted design process of traditional communities under conditions of scarcity (Michel and Bevan 1992). This requires first analyzing the spatial environmental model of interaction, available human and natural resources, and the dynamic relationship of these variables in a digital era. In the first stage (Pre-Agency), the game set the concept of the craft by limiting students design exploration from a minimum possible perspective developing locally available resources and techniques. The key elements of the design process of traditional knowledge communities have to be identified (Preez 1984). In other words, this stage is driven by limited resources + chance + contingency. In the second stage (Post-Agency) students taking the architects´ role within this communities, have to speculate and explore the interface between the craft (local knowledge and low technological tools), and the digital represented by computation data, new technologies available and construction. This means the introduction of strategy + opportunity + chance as part of the design process. In this sense, the game has a life beyond its mechanics. This other life challenges the participants to exploit the possibilities of breaking the actual boundaries of design. The result is a tool to challenge conventional methods of teaching and leaning controlling a prescribed design process. It confronts the rules that professionals in this field take for granted. The game simulates a 'fake' reality by exploring in different ways with surveyed information. As a result, participants do not have anything 'real' to lose. Instead, they have all the freedom to innovate and be creative.
keywords	Global south, scarcity, low tech, digital-craft, design process and innovation by challenge.
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:54

_id	ceb1
authors	Maver, T.
year	1984
title	What is eCAADe?
source	The Third European Conference on CAD in the Education of Architecture [eCAADe Conference Proceedings] Helsinki (Finnland) 20-22 September 1984.
doi	https://doi.org/10.52842/conf.ecaade.1984.x.d0s
summary	The main interest of the organisation is to improve the design, teaching. The design remains the core of the professional education, while computer science can support a better understanding of the design methods. Computers should amplify the human capabilities like engines allowed to carry higher forces, radio and television enabled communication over larger distances and computers today should aid the human intellectual activities, to gain a better insight in design methodology, to investigate the design process.Design research should study more extensively how buildings behave, the integration and interaction of different disciplines which contribute to the optimization of a design and the design criteria. Computers could increase the possibility to satisfy building regulations, to access and update information, to model the design process and to understand how decisions affect the building quality (functional and economical as well as formal aspects). More effort and money should be spent on this research. The organisation has been sponsored by the EEC for bringing CAAD (Computer Aided Architectural Design) educational material at the disposal of the design teachers. The Helsinki conference is the third European meeting (after Delft 1982 and Brussels 1983) which concentrates on information and experience exchange in CAAD-education and looks for common interests and collaboration. A specific joint study program works on typical audiovisual material and lecture notes, which will be updated according to teacher's needs. A demand has been done to implement an integrated CAAD package. eCAADe focuses to integrate computer approaches across country boundaries as well as across disciplinary boundaries, as to reach a higher quality of the design education.
series	eCAADe
email
last changed	2022/06/07 07:50

_id	40d6
authors	Johnson, Robert E.
year	1984
title	The Integration of Economic Analysis and Computer-based Building Models
source	CIB W-65 Symposium. July, 1984. [19] p. : ill. includes bibliography
summary	Most current methods used to evaluate the economics of building designs are inadequate in that they focus on the evaluation of completed designs and do not assist in the development and creation of designs. They are used after most major design decisions have been made. This paper describes the first year of a two year research project (funded by the National Science Foundation, the U.S. Government) which seeks to integrate economic analysis techniques into design decision-making within the context of an interactive computer-aided architectural and engineering design system. Issues reviewed include the current state of computer software, existing economic analysis models and existing economic analysis software. A conclusion is reached that most economic analysis systems fall into the category of single purpose software and are not adaptable to the wide range of idiosyncratic evaluation models used in real estate, architecture, engineering, construction and building management. Objectives are proposed for a general purpose, interactive cost modeling system that is integrated with a geometric computer-based building model. Initial experiments with a prototype of this system at various stages of the design-construction-use process are discussed. Further development of this system as a research tool for exploring alternative economic modeling procedures is presented
keywords	analysis, evaluation, CAD, architecture, design, methods, economics, integration
series	CADline
last changed	2003/06/02 13:58

_id	8844
authors	Rasdorf, William J.
year	1984
title	Relational Database Modeling of Building Design Data
source	Computing in Civil Engineering Conference Proceedings (3rd : 1984 : San Diego). American Society Of Civil Engineers, pp. 364-371. CADLINE has abstract only
summary	This paper discusses the use of a relational database for representing the data gathered and derived during the building design process. In doing so, it considers the complexity of the relationships among a structure's topology, geometry, and attributes, and the critical requirements they impose on the development of a building design database. In the broad arena of computer-aided design, relational database management systems are establishing themselves as useful engineering tools. This is occurring at a time when engineers and architects are moving toward centralized and integrated databases of design information. In such a database, information is directly and readily available to all members of the design team, allowing them to work concurrently on an accurate representation of a wide variety of engineering design data. This paper presents the use of a relational database to model building design data and shows that the relationships among topology, geometry, and attributes can be successfully modeled relationally. The feasibility of interaction between engineering applications programs and the database is also indicated. Although the paper concentrates on structural design data for buildings, the relational model can also be used to represent the data of other engineering design disciplines as well as the data for other structures, assemblies, systems, and processes
keywords	relational database, civil engineering, CAD
series	CADline
last changed	2003/06/02 13:58

_id	caadria2020_118
id	caadria2020_118
authors	Chow, Ka Lok and van Ameijde, Jeroen
year	2020
title	Generative Housing Communities - Design of Participatory Spaces in Public Housing Using Network Configurational Theories
source	D. Holzer, W. Nakapan, A. Globa, I. Koh (eds.), RE: Anthropocene, Design in the Age of Humans - Proceedings of the 25th CAADRIA Conference - Volume 2, Chulalongkorn University, Bangkok, Thailand, 5-6 August 2020, pp. 283-292
doi	https://doi.org/10.52842/conf.caadria.2020.2.283
summary	This research-by-design project explores how public housing estates can accommodate social diversity and the appropriation of shared spaces, using qualitative and quantitative analysis of circulation networks. A case study housing estate in Hong Kong was analysed through field observations of movements and activities and as a site for the speculative re-design of shared spaces. Generative design processes were developed based on several parameters, including shortest paths, visibility integration and connectivity integration (Hillier & Hanson, 1984). Additional tools were developed to combine these techniques with optimisation of sunlight access, maximisation of views for residential towers and the provision of permeability of ground level building volumes. The project demonstrates how flexibility of use and social engagement can constitute a platform for self-organisation, similar to Jane Jacobs' notion of vibrant streets leading to active and progressive communities. It shows how computational design and configurational theories can promote a bottom-up approach for generating new types of residential environments that support participatory and diverse communities, rather than a conventional top-down approach that is perceived to embody mechanisms of social regimentation.
keywords	Urban Planning and Design; Network Configuration; Community Space and Social Interaction; Hong Kong Public Housing
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	a688
authors	Walters, R. J.
year	1984
title	Towards and End User View of Design Systems
source	1984? pp. 17-27 : tables. includes bibliography
summary	Based upon detailed reporting of CAD use in hospital projects, an end user's view of design systems is developed. From the recorded user experience system development, implementation, performance in use and effects upon design practice are assessed. Aspects of user technique are developed. Current systems are found to be flawed but satisfactory results may be obtained under the right conditions. These are identified. The range of factors required in the development of an end user view of design systems also identified. An evaluation of the use of OXSYS/BDS on Milton Keynes DGH is presented together with an assessment of CAD use (both BDS and GDS) on health building projects at Oxford RHA. The paper summaries a detailed report (Walters 83). The paper is presented in 4 parts: an introduction, results of a detailed case study and an assessment leading towards an end user view of current design systems
keywords	design, CAD, systems, applications, practice, user interface, evaluation
series	CADline
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

_id	6bac
authors	Piegl, L.
year	1984
title	A Generalization of the Bernstein-Bezier Method
source	Computer Aided Design. Butterworth & Co. (publishers) Ltd., July, 1984. vol. 16: pp. 209-215 : ill. includes bibliography
summary	A representation for parametric curves and surfaces is presented which generalizes the scheme of the nonrational Bezier curve and surface by introducing appropriate parameters into the parametric forms. A brief discussion of the continuity conditions and a comparison with the rational Bezier curve and surface are included
keywords	parametrization, curves, curved surfaces, Bezier
series	CADline
last changed	2003/06/02 10:24

_id	2b48
authors	Shaviv, Edna
year	1984
title	A Design Tool for Determining the Form of Fixed and Movable Sunshades
source	ASHRAE Transactions. 1984. vol. 90: [14] p. : ill. and tables. includes bibliography: p. [7]
summary	A method for the design of fixed and movable external sunshaeds for windows is presented. The window can have any shape and be located on a wall having an arbitrary orientation. The fundamental idea is to use a computer to generate the entire envelope of the family of shading solutions that satisfies a prescribed set of shading requirements. The envelope of solutions serves as a nomogram on the basis of which sunshades are designed. Any sunshade designed following this nomogram satisfies the prescribed demands. The method creates an unlimited space of solutions, leaving the final design to the architect's imagination
keywords	evaluation, analysis, shading, design, methods, architecture, algorithms, energy
series	CADline
email
last changed	2003/05/17 10:20

_id	ecaade2013_094
id	ecaade2013_094
authors	Tomé, Ana; Heitor, Teresa and Nunes, Mário
year	2013
title	Space-Use Interactions Described Through Computer Vision
source	Stouffs, Rudi and Sariyildiz, Sevil (eds.), Computation and Performance – Proceedings of the 31st eCAADe Conference – Volume 1, Faculty of Architecture, Delft University of Technology, Delft, The Netherlands, 18-20 September 2013, pp. 403-412
doi	https://doi.org/10.52842/conf.ecaade.2013.1.403
wos	WOS:000340635300042
summary	This paper examines analytical procedures aimed at the study of the functional condition of architectural artefacts and, as a result, the promotion of a better understanding of the connections established with spatial conditions. The goal is to contribute to the development of techniques based on computer vision of mobility and users’ interaction, producing non-arbitrary registries of their movement/navigation and occupancy/co-presence patterns via a quantitatively based analysis.Movement/navigation and occupancy/co-presence patterns were correlated with configurational properties obtained by applying the space syntax descriptive model (Hillier and Hanson, 1984). It was possible to analyse relations between the spatial configuration and the movement/navigation and occupancy/co-presence patterns, a key question within the architectural conceptual process.
keywords	Space-use analysis method; computer vision; movement/navigation patterns; occupation/co-presence patterns; occupation/movement indices.
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ac8b
authors	Mitchell, W.
year	1984
title	CAD Technology, Its Effects on Practice and the Response of Education - an Overview
source	The Third European Conference on CAD in the Education of Architecture [eCAADe Conference Proceedings] Helsinki (Finnland) 20-22 September 1984.
doi	https://doi.org/10.52842/conf.ecaade.1984.x.b3c
summary	Related with the evolution of hardware there also is an evolution of CAD techniques. The very first CAD/CAM packages were developed on mainframes. They moved into practice when 16-bit minicomputers became available. The packages mainly were production drafting applications. The 32-bit super minicomputers give wider possibilities, but at the same time some software problems arise, namely the complexity of CAD- databases and the development and maintenance cost of large programs. With VLSI the distribution of intelligence becomes possible, the enthousiasm for CAD increases, but still the gap between available hardware and high quality software, remains high.Concerning CAD teaching there are severe problems. First of all there are not enough really good designers which know CAD in such a way that they can teach it. Second there is a shortage of equipment and a financial problem. Thirdly there is the question what the students need to know about CAD. which is not clear at the moment. At the University of California, Los Angeles, the following 5 subjects are teached: Computer Support, Computer Literacy, Professional Practice Implications, Exploration of CAD as a Design Medium and Theoretical Foundations of CAD. To use computers as a medium it is necessary to understand architecture, its objects, its operators and its evaluation criteria. The last topic is considered at research level.
series	eCAADe
email
more	www.ecaade.org
last changed	2022/06/07 07:50

_id	af26
authors	Renson, Michel
year	1984
title	National Situation Report: Université de Liege (Belgium, Southern Part)
source	The Third European Conference on CAD in the Education of Architecture [eCAADe Conference Proceedings] Helsinki (Finnland) 20-22 September 1984.
doi	https://doi.org/10.52842/conf.ecaade.1984.x.u6h
summary	In Belgium there are two possibilities to study architecture, it can either be done at a higher institute or academy, or at a university. At the higher schools of architecture the computer equipment has just been installed during the last years, and teaching of CAAD is not yet integrated. There exists only a general computer course. At the universities hardware has been available since several years, and software has been developed. The following programs have been implemented in Liege : LPB1, LPB2, LPB3, LPB4 (energy analysis), FEASIBILITY (to obtain acceptable values for the main global parameters of a design), VOLUME, (3D modelling for building modelisation and manipulation) and TYPOLOGIE (for the determination of classes for the energetic behaviour of residential buildings).
series	eCAADe
last changed	2022/06/07 07:50

_id	6c6f
authors	Shaviv, Edna
year	1984
title	National Situation Report: Technion (Haifa, Israel)
source	The Third European Conference on CAD in the Education of Architecture [eCAADe Conference Proceedings] Helsinki (Finnland) 20-22 September 1984.
doi	https://doi.org/10.52842/conf.ecaade.1984.x.j7u
summary	In Israel there is only one School of Architecture. CAAD teaching has been introduced since 1969-1970. Last year it has been decided that each department (electronical, mechanical, architectural) will have its own CAD laboratory for computer graphics, based on a super minicomputer (CDC Cyber 170/720). The following software is available for CAAD : CD2000 (wireframe drawings), ICEM (solid modelling), TIGS (terminal independent graphics system), GOAL and BIBLE, ACA (integrated CAAD software). At the Technion teachers and architects which can educate CAAD are available. The following courses are teached : Computer Aided Architectural Design (I + II), Computer Methods in City Planning, Mathematical Models in Architectural Design, Design Course - Geometrical Modelling, Design Course - Solar Energy Design Seminar. It was decided that since next year the following courses will use CAAD : Design course - Geometrical Modelling and Appraisal, Morphology I, 2D-Design and Design Course - Passive Solar Communities.
series	eCAADe
email
last changed	2022/06/07 07:50

_id	a6f1
authors	Bridges, A.H.
year	1986
title	Any Progress in Systematic Design?
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 5-15
summary	In order to discuss this question it is necessary to reflect awhile on design methods in general. The usual categorization discusses 'generations' of design methods, but Levy (1981) proposes an alternative approach. He identifies five paradigm shifts during the course of the twentieth century which have influenced design methods debate. The first paradigm shift was achieved by 1920, when concern with industrial arts could be seen to have replaced concern with craftsmanship. The second shift, occurring in the early 1930s, resulted in the conception of a design profession. The third happened in the 1950s, when the design methods debate emerged; the fourth took place around 1970 and saw the establishment of 'design research'. Now, in the 1980s, we are going through the fifth paradigm shift, associated with the adoption of a holistic approach to design theory and with the emergence of the concept of design ideology. A major point in Levy's paper was the observation that most of these paradigm shifts were associated with radical social reforms or political upheavals. For instance, we may associate concern about public participation with the 1970s shift and the possible use (or misuse) of knowledge, information and power with the 1980s shift. What has emerged, however, from the work of colleagues engaged since the 1970s in attempting to underpin the practice of design with a coherent body of design theory is increasing evidence of the fundamental nature of a person's engagement with the design activity. This includes evidence of the existence of two distinctive modes of thought, one of which can be described as cognitive modelling and the other which can be described as rational thinking. Cognitive modelling is imagining, seeing in the mind's eye. Rational thinking is linguistic thinking, engaging in a form of internal debate. Cognitive modelling is externalized through action, and through the construction of external representations, especially drawings. Rational thinking is externalized through verbal language and, more formally, through mathematical and scientific notations. Cognitive modelling is analogic, presentational, holistic, integrative and based upon pattern recognition and pattern manipulation. Rational thinking is digital, sequential, analytical, explicatory and based upon categorization and logical inference. There is some relationship between the evidence for two distinctive modes of thought and the evidence of specialization in cerebral hemispheres (Cross, 1984). Design methods have tended to focus upon the rational aspects of design and have, therefore, neglected the cognitive aspects. By recognizing that there are peculiar 'designerly' ways of thinking combining both types of thought process used to perceive, construct and comprehend design representations mentally and then transform them into an external manifestation current work in design theory is promising at last to have some relevance to design practice.
series	CAAD Futures
email
last changed	2003/11/21 15:16

_id	8fd4
authors	Christiansson, Per
year	1984
title	Integrated Computer Aided Design: Present and Future Data Structure
source	CIB W78, Colloquium June, 1984. 6 p. : ill. includes bibliography.
summary	The article presents some viewpoints on data structures which may mirror the building process and development of integrated computer aided design systems. The emphasis is upon the necessity to find a sufficiently valid general approach to system development in order to meet the fast evolution within the field and the demand for development strategies
keywords	data structures, integration, CAD, systems, building process, architecture, standards, construction
series	CADline
last changed	1999/02/12 15:07

_id	3386
authors	Gavin, L., Keuppers, S., Mottram, C. and Penn, A.
year	2001
title	Awareness Space in Distributed Social Networks
source	Proceedings of the Ninth International Conference on Computer Aided Architectural Design Futures [ISBN 0-7923-7023-6] Eindhoven, 8-11 July 2001, pp. 615-628
summary	In the real work environment we are constantly aware of the presence and activity of others. We know when people are away from their desks, whether they are doing concentrated work, or whether they are available for interaction. We use this peripheral awareness of others to guide our interactions and social behaviour. However, when teams of workers are spatially separated we lose 'awareness' information and this severely inhibits interaction and information flow. The Theatre of Work (TOWER) aims to develop a virtual space to help create a sense of social awareness and presence to support distributed working. Presence, status and activity of other people are made visible in the theatre of work and allow one to build peripheral awareness of the current activity patterns of those who we do not share space with in reality. TOWER is developing a construction set to augment the workplace with synchronous as well as asynchronous awareness. Current, synchronous activity patterns and statuses are played out in a 3D virtual space through the use of symbolic acting. The environment itself however is automatically constructed on the basis of the organisation's information resources and is in effect an information space. Location of the symbolic actor in the environment can therefore represent the focus of that person's current activity. The environment itself evolves to reflect historic patterns of information use and exchange, and becomes an asynchronous representation of the past history of the organisation. A module that records specific episodes from the synchronous event cycle as a Docudrama forms an asynchronous information resource to give a history of team work and decision taking. The TOWER environment is displayed using a number of screen based and ambient display devices. Current status and activity events are supplied to the system using a range of sensors both in the real environment and in the information systems. The methodology has been established as a two-stage process. The 3D spatial environment will be automatically constructed or generated from some aspect of the pre-existing organisational structure or its information resources or usage patterns. The methodology must be extended to provide means for that structure to grow and evolve in the light of patterns of actual user behaviour in the TOWER space. We have developed a generative algorithm that uses a cell aggregation process to transcribe the information space into a 3d space. In stage 2 that space was analysed using space syntax methods (Hillier & Hanson, 1984; Hillier 1996) to allow the properties of permeability and intelligibility to be measured, and then these fed back into the generative algorithm. Finally, these same measures have been used to evaluate the spatialised behaviour that users of the TOWER space show, and will used to feed this back into the evolution of the space. The stage of transcription from information structure to 3d space through a generative algorithm is critical since it is this stage that allows neighbourhood relations to be created that are not present in the original information structure. It is these relations that could be expected to help increase social density.
keywords	Algorithmic Form Generation, Distributed Workgroups, Space Syntax
series	CAAD Futures
email
last changed	2006/11/07 07:22

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