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	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	63d0
authors	Carrara, Gianfranco and Novembri, Gabriele
year	1986
title	Constraint-bounded design search
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 146-157
summary	The design process requires continual checking of the consistency of design choices against given sets of goals that have been fulfilled. Such a check is generally performed by comparing abstract representations of design goals with these of the sought real building objects (RBO) resulting from complex intellectual activities closely related to the designer's culture and to the environment in which he operates. In this chapter we define a possible formalization of such representations concerning the goals and the RBO that are usually considered in the architectural design process by our culture in our environment. The representation of design goals is performed by expressing their objective aspects (requirements) and by defining their allowable values (performance specifications). The resulting system of requirements defines the set of allowable solutions and infers an abstract representation of the sought building objects (BO) that consists of the set of characteristics (attributes and relations) which are considered relevant to represent the particular kind of RBO with respect to the consistency check with design goals. The values related to such characteristics define the performances of the RBO while their set establishes its behaviour. Generally speaking, there is no single real object corresponding to an abstract representation but the whole class of the RBO that are equivalent with respect to the values assumed by the considered characteristics. The more we increase the number of these, as well as their specifications, the smaller the class becomes until it coincides with a single real object - given that the assessed specifications be fully consistent. On the other hand, the corresponding representation evolves to the total prefiguration of the RBO. It is not therefore possible to completely define a BO representation in advance since this is inferred by the considered goals and is itself a result of the design process. What can only be established in advance is that any set of characteristics assumed to represent any RBO consists of hierarchic, topological, geometrical and functional relations among the parts of the object at any level of aggregation (from components to space units, to building units, to the whole building) that we define representation structure (RS). Consequently the RS may be thought as the elementary structures that, by superposition and interaction, set up the abstract representation that best fit with design goals.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	eb7a
authors	Porada, Mikhael
year	1999
title	Virtual Analogy and Architecture
doi	https://doi.org/10.52842/conf.ecaade.1999.069
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 69-73
summary	Our fashion of thought is dialogic in its way to use simultaneously logic- mathematics and analogical approaches (Morin, 1986). The analogy works as well at the level of the unconscious by the construction of an analogon that permits us to recognise a face between thousand of others, despite changes intervened in time; as consciously where by an effort of constructive analogy, we establish bridges between different events or domains giving to the design a new lighting that puts it on the way to a solution. For this reason visual approach acquires a great importance in the establishment of similitude in conception. Many testimonies of scientists, philosophers, artists confirm this observation about their creative work, while underlining the danger of no founded analogies. In current life, analogy brings a support of likeness to the daily conversations, and the possibility to advance in the dialogue by a chaining of analogies having for objective to strengthen the speech.
series	eCAADe
email
last changed	2022/06/07 08:00

_id	8060
authors	Bentley, Jon L. and Kernighan, Brian W.
year	1986
title	GRAP - a Language for Typesetting Graphs
source	communications of the ACM. August, 1986. vol. 29: pp. 782-792 : charts. includes bibliography
summary	The authors describe a system that makes it easy and convenient to describe graphs and to include them as an integral part of the document formatting process
keywords	programming, computer graphics, algorithms, business
series	CADline
last changed	2003/06/02 10:24

_id	c5af
authors	Bobrow, Daniel G. and Stefik, Mark J.
year	1986
title	Perspective on Artificial Intelligence Programming
source	Science. February, 1986. vol. 231: pp. 951-956
summary	Programming systems for artificial intelligence application use specialized languages, environments, and knowledge-based tools to reduce the complexity of the programming task. Language style based on procedure, objects logic rules, and constraints reflect different models for organizing programs and facilitate program evaluation and understandability. To make programming easier, multiple styles can be integrated as sublanguages in programming environment. Programming environments provide tools that analyze programs and create informative displays of their structure. Programs can be modified by direct interaction with these displays. These tools and languages are helping computer scientists to regain a sense of control over systems that have become increasingly complex
keywords	programming, AI
series	CADline
last changed	2003/06/02 13:58

_id	876b
authors	Christiansson, Per
year	1986
title	Structuring a Learning Building Design System
source	Advancing Building Technology, CIB International Congress (10th : 1986 : Washington D. C.). 9 p. : ill. includes bibliography
summary	It is now vital to aim at formulating computer system modules that possess a high ability to adapt their behavior to fundamental human values and a complex and unstandardized (not uniform) building process but at the same time put constraints on them so that we don't end up with a confusion of computerized routines hard to access, control and understand. In the paper formulations are made of basic artifact skeletons outgoing from the properties to give integrated CAD systems and to those rules by which the growth of the systems are governed. System learning domains including conceptual modelling tools are presented aiming at supporting professional skill, creativity and integration between process actors. The basis for system implementation is frames, descriptive language (PROLOG) and relational databases with regard taken to future possibilities to parallel processing
keywords	modeling, learning, integration, database, AI, design, systems, frames
series	CADline
last changed	1999/02/12 15:07

_id	2a91
authors	Cox, Brad J.
year	1986
title	Object-Oriented Programming : An Evolutionary Approach
source	274 p. : ill Reading, Mass.: Addison-Wesley Pub. Co., 1986. includes index
summary	Object oriented programming departs from conventional programming by emphasizing the relationship between consumers and suppliers of codes rather then the relationship between a programmer and his code. The author describes the development of an object-oriented C language compiler, and how it can be put to work
keywords	systems, languages, software, programming, OOPS
series	CADline
last changed	2003/06/02 13:58

_id	0354
authors	Goodman, Gary and Reddy, Raj D.
year	1978
title	Alternative Control Structures for Speech Understanding Systems
source	1978 ? [13] p. : ill. includes bibliography Control structures are an essential part of any speech recognition system. They are the devices by which passive knowledge about the task and language is transformed into active and effective processes. In the chapter, three areas of control structures are defined and discussed: knowledge source interaction, knowledge source activation, and knowledge source focusing. Discussion relates the concepts presented to systems developed during the five-year ARPA speech understanding project. speech recognition / systems / control / structures / AI. 64. Goodman, Tim and Keith Unsworth. 'Manipulating Shape and Producing Geometric Continuity in B-spline Curves.' IEEE Computer Graphics and Applications. February, 1986. vol. 6: pp. 50-56 : ill. includes bibliography.
summary	This article examines some of the desirable features of B- splines that make them particularly suitable for computer- aided design. First, a theoretical analysis is presented regarding the effects upon the shape of a design curve when the bias and tension parameters are allowed to vary in certain ways. Second, the concept of geometric continuity is discussed, and conditions are derived upon the control vertices to ensure that the design curve has second-order geometric continuity. Illustrations of B-spline curves are presented to support the theoretical conclusions
keywords	computational geometry, B-splines, curves, CAD
series	CADline
last changed	2003/06/02 13:58

_id	ad96
authors	Gudes, Ehud and Bracha, Gilad
year	1986
title	GCI : A Tool for Developing Interactive CAD User Interfaces
source	26 p. : ill. Israel: 1986? includes bibliography
summary	GCI is a Unix based tool for developing interactive CAD programs. By separating command/menu definitions from the program, GCI makes it easier to change and extend the user interface. The language provided by GCI is used to define syntax of commands, menus, messages, and help text. Generally, GCI supports a static hierarchical structure of commands and menus. However, through a program interface, an application program has the freedom to change environments, commands and menus. This flexibility of run-time control of the user interface is essential for developing highly responsive interfaces in a CAD environment. This paper presents the main concepts and definition language of GCI. It then discusses architectural and implementation issues, and finally presents a typical application's view of using the tool
keywords	user interface, design, management, systems, tools, CAD
series	CADline
last changed	2003/06/02 10:24

_id	ccb4
authors	Helman, Paul and Veroff, Robert
year	1986
title	Intermediate Problem Solving and Data Structure : Walls and Mirrors
source	xxi, 612 p. : ill Menlo Park, California: The Benjamin/Cumming Company,inc., 1986. includes index.
summary	An intermediate level presentation of recursion and recursive problem solving. The book integrates both problem solving and programming skills and uses the Pascal language for implementation
keywords	programming, data structures, problem solving, recursion, PASCAL
series	CADline
last changed	2003/06/02 13:58

_id	sigradi2008_175
id	sigradi2008_175
authors	Knight, Terry; Larry Sass, Kenfield Griffith, Ayodh Vasant Kamath
year	2008
title	Visual-Physical Grammars
source	SIGraDi 2008 - [Proceedings of the 12th Iberoamerican Congress of Digital Graphics] La Habana - Cuba 1-5 December 2008
summary	This paper introduces new visual-physical design grammars for the design and manufacture of building assembly systems that provide visually rich, culturally resonant design variations for housing. The building systems are intended to be tailored for particular cultures and communities by incorporating vernacular, decorative design into the assembly design. Two complementary areas of computational design research are brought together in this work: shape grammars and digital fabrication. The visual or graphic aspects of the research are explored through shape grammars. The physical design and manufacturing aspects are explored through advanced digital design and fabrication technologies and, in particular, build on recent work on mono-material assemblies with interlocking components that can be fabricated with CNC machines and assembled easily by hand on-site (Sass, 2007). This paper describes the initial, proof-of-concept stage of this work: the development of an automated, visual-physical grammar for an assembly system based on a vernacular language of Greek meander designs. A shape grammar for the two-dimensional Greek meander language (Knight, 1986) was translated into a three-dimensional assembly system. The components of the system are uniquely designed, concrete “meander bricks” (Figure 1). The components have integrated alignment features so that they can be easily fitted and locked together manually without binding materials. Components interlock horizontally to form courses, and courses interlock vertically in different ways to produce a visual variety of meander walls. The assembly components were prototyped at desktop scale with a layered manufacturing machine to test their appearance after assembly and their potential for design variations (Figure 2). Components were then evaluated as full-scale concrete objects for satisfaction of physical constraints related to concrete forming and component strength. The automated grammar (computer program) for this system generates assembly design variations with complete CAD/CAM data for fabrication of components formed from layered, CNC cut molds. Using the grammar, a full-scale mockup of a corner wall section was constructed to assess the structural, material, and aesthetic feasibility of the system, as well as ease of assembly. The results of this study demonstrate clearly the potentials for embedding visual properties in structural systems. They provide the foundations for further work on assembly systems for complete houses and other small-scale structures, and grammars to generate them. In the long-term, this research will lead to new solutions for economical, easily manufactured housing which is especially critical in developing countries and for post-disaster environments. These new housing solutions will not only provide shelter but will also support important cultural values through the integration of familiar visual design features. The use of inexpensive, portable digital design and fabrication technologies will allow local communities to be active, cooperative participants in the design and construction of their homes. Beyond the specific context of housing, visual-physical grammars have the potential to positively impact design and manufacture of designed artifacts at many scales, and in many domains, particularly for artifacts where visual aesthetics need to be considered jointly with physical or material requirements and design customization or variation is important.
keywords	Shape grammar, digital fabrication, building assembly, mass customization, housing
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	a48f
authors	Krishnan, D. and Patnaik, L.M.
year	1986
title	GEODERM : Geometric Shape Design System Using an Entity-Relationship Model
source	Computer Aided Design. May, 1986. vol. 18: pp. 207-218 : ill. includes bibliography and 7 appendixes
summary	GEODERM, a microcomputer-based solid modeler which incorporates the parametric object model, is discussed. The entity-relationship model, which is used to describe the conceptual schema of the geometric database, is also presented. Three of the four modules of GEODERM, which have been implemented are described in some detail. They are the Solid Definition Language (SDL), the Solid Manipulation Language (SML) and the User-System Interface
keywords	CAD, solid modeling, relational database, geometric modeling,parametrization
series	CADline
last changed	2003/06/02 13:58

_id	c2dd
authors	Oxman, Robert
year	1986
title	Towards a New Pedagogy
source	Journal of Architectural Education. Summer, 1986. vol. 39: pp. 22-28 : ill. includes some bibliographical notes
summary	This paper proposes the potential of design studies as a vehicle for the transfer of what might be considered 'architectural knowledge' as compared to 'professional experience.' An analogy with language study is suggested as a means of conveying the distinction between the acquisition of general design knowledge - a knowledge base which is not domain specific - and its application in dealing with ad-hoc problems
keywords	design, knowledge acquisition, education, architecture
series	CADline
last changed	1999/02/12 15:09

_id	ac2c
authors	Panunzi, Stefano and Sansoni, Claudio
year	1986
title	Transformations of the Shanberg House - Analysis of a Plan and Planning Experimentations, Using the Instruments of Multicriterial Analysis as Means of Research.
doi	https://doi.org/10.52842/conf.ecaade.1986.097
source	Teaching and Research Experience with CAAD [4th eCAADe Conference Proceedings] Rome (Italy) 11-13 September 1986, pp. 97-110
summary	During the last years some research programs have been developed aiming to analyse a particular architectonic language, using mathematical and informatic instruments. Some of these research programs have as second aim the making of a method for creating a geometrical planning-language: most of these studies are dedicated to the research into the laws which rule the personal style used by an author in certain works. Instead, this research program aims to analyse the planning process, not from the point of view of those who want to reconstruct the laws which describe the stile of a particular author but, by trying to understand the “compositive” process, analysing it by reconstructing the project itself, through a dynamic aggregative process of subsequent parts.
series	eCAADe
email
last changed	2022/06/07 08:00

_id	ab08
authors	Samad, Tariq
year	1986
title	A Natural Language Interface for Computer-Aided Design
source	ix, 188 p. Boston: Kluwer Academic Publishers, 1986. includes bibliography: p. [174]-184 and index. -- (Kluwer International Series in Engineering and Computer Science)
summary	A description of CLEOPATRA, a natural language interface for a particular sub-domain of computer aided design--circuit simulation post processing. The language is based on an approach to natural language understanding that supplements a case frame parser with a few novel features that give the approach more generality and power than pervious approaches without sacrificing the intuitive appeal of case-frame semantics
keywords	CAD, natural languages, user interface, integrated circuits
series	CADline
last changed	1999/02/12 15:09

_id	8267
authors	Shapiro, Ehud
year	1986
title	Concurrent Prolog : A Progress Report
source	IEEE Computer. August, 1986. vol. 19: pp.44-58. includes bibliography
summary	Concurrent Prolog is a logic programming language designed for concurrent programming and parallel execution. A process- oriented language, it embodies dataflow synchronization and guarded-command indeterminacy as its basic control mechanisms. This article outlines the basic concepts and definition of the language, and surveys the major programming techniques that emerged out of three years of its use. The history of the language development, implementation, and applications are reviewed
keywords	PROLOG, programming, AI, languages, concurrency, control, techniques
series	CADline
last changed	1999/02/12 15:09

_id	68ef
authors	Tweed, Christopher
year	1986
title	A Computing Environment for CAAD Education
doi	https://doi.org/10.52842/conf.ecaade.1986.136
source	Teaching and Research Experience with CAAD [4th eCAADe Conference Proceedings] Rome (Italy) 11-13 September 1986, pp. 136-145
summary	This paper describes a modelling system, MOLE (Modelling Objects with Logic Expressions), and its use as a computing environment for teaching architectural undergraduates. The paper also sketches the background to MOLE's development as a medium for research, and identifies benefits conferred on research and teaching through their common interest in MOLE. Teaching at EdCAAD is conducted in what is chiefly a research milieu. Hence our teaching methods exploit the products and experience of research. But the partnership is mutually rewarding, because teaching informs future research efforts through the experience gained from using MOLE. At present, our teaching concentrates on a ten-week elective course for fourth year architectural undergraduates. The main component of the course requires each student to program a simple application related to architectural design. Applications normally require a programming language with access to graphics routines, and in previous years we have used C or, more recently, Prolog with their graphics extensions. For the past two years MOLE has fulfilled this need. The paper begins by explaining the evolution of our approach to CAAD, leading to the development of the description system, MOLE. Section two outlines the main features of the version of MOLE which has been extended to provide a comprehensive computing environment for programming simple architectural applications. MOLE in use is the subject of section three which is illustrated with examples drawn from students' coursework projects and exercises. This is followed by a discussion of the lessons learned from teaching which highlight areas of MOLE's development that need more study. A concluding section summarises what has been learned, and poses vital questions that require answers before we can expect widespread acceptance of CAAD in practice.
series	eCAADe
last changed	2022/06/07 07:58

_id	f3aa
authors	Tyler, Sherman William
year	1986
title	SAUCI. Self-Adaptive User Computer Interfaces
source	Carnegie Mellon University,Pittsburgh
summary	Different approaches to the design of the human-computer interface have been taken in the past. These can be organized into four broad categories: tack-on; intuitive/empirical; formal; and conversational. There are several important interface design criteria that have never been adequately attained in any of these approaches. One is modularity, that is, maintaining a clear separation between the interface and its target system. A second criterion is self-adaptation, or the ability of the interface to modify its own behavior to suit a given individual user. Two further criteria relate to the interface's potential to guide users in performing typical high-level tasks on the target system and to provide intelligent advice on the use of that system. This research was focused on developing an integrated technique for achieving these four design criteria. To that end, an abstract architecture called SAUCI, or the Self-Adaptive User-Computer Interface, was proposed, embodying a knowledge-based, object-oriented approach to interface design. The foundation of this approach rests upon information encoded within sets of objects. This information includes separate knowledge bases describing the individual users, the commands of the target system, and the high-level tasks appropriate for that system. The behavior of the interface is controlled by various methods which call upon the knowledge bases in a rule-governed manner to decide what interface features should be present at each phase of the user's dialogue with the target system. To test the feasibility of the proposed architecture, a working interface was implemented on a Xerox 1108 computer in the LOOPS language, with a UNIX operating system running on a separate minicomputer as the target system. An empirical evaluation of this prototype revealed clear advantages over the standard interface. Closer examination pointed to each of the factors of modularity, task guidance, and user-tailored assistance as playing a significant role in these effects. A discussion of additional applications of this architecture and of areas for future development is offered as further evidence of the value of this approach as a general framework for human-computer interface design.
series	thesis:PhD
last changed	2003/02/12 22:37

_id	1083
authors	Wu, Rui
year	2002
title	Computer Aided Dimensional Control in Building Construction
source	Eindhoven University of Technology
summary	Dimensional control in the building industry can be defined as the operational techniques and activities that are necessary, during the construction process of a building, for the assurance of the defined dimension quality of a building (Hoof, 1986). Efficient and precise dimensional control of buildings under construction is becoming ever more important because of changes in the construction industry. More prefabricated components are used; more regulations appear; newly designed buildings have more complex shapes, and building construction is speeding up. To ensure the predefined dimensional quality, a plan of dimensional control must be designed, on the basis of building drawings and specifications delivered by architects, before the building is constructed. The dimensional control plan must provide site personnel with adequate information on, among others, setting out and assembling building components, which can often be done by means of Total Stations. The essence of designing a dimensional control plan is to find out which points should be used as positioning points, which points should be set out in advance or controlled afterwards, and not to forget why. In an effort to contribute to the improvement of the dimensional control of on-site construction projects, this research tries to capture the knowledge required to design an adequate dimensional control plan and make that knowledge more generally available, and build a digital connection between CAD systems and Total Stations, focusing on prefabricated concrete building structural elements. The instrument developed in this research for capturing of essential dimensional control information and knowledge makes use of Product Data Technology (PDT) and Knowledge Technology (KT). The chosen solution supports the stochastic analysis of optimal positioning points taking account of various sorts of deviations and their mutual relationships. The resulting information model has been written in a standardized information modelling language called UML (Unified Modelling Language). The model has been implemented in a Dimensional Control System (DCS) and applied in the “La Tour” construction project in Apeldoorn, the Netherlands. The DCS provides a digital way to bridge the floor plan design with dimensional control, predict dimensional deviation limits and output the data needed for a Total Station. The case study of “La Tour” tests the UML model and prototype of the DCS. The results prove that direct positioning of objects (by putting reflectors on the objects and using a Total Station and by inputting coordinates extracted and calculated from the AutoCAD drawings) provides higher speed, accuracy and reliability. It also shows a way to (pre)position free form objects in 3D where traditional methods cannot. In conclusion: (1) it seems to be justified to expect that the application of the DCS will contribute to increased confidence in dimensional control and the reduction of costs of failure, which potentially could support the increased use of cheaper construction methods, and will also contribute to the improvement of building design and construction process. (2) the scientific contribution of this research is a first step towards providing dimensional quality in a construction process covered by stochastic dimensional uncertainty, even for positioning of free form objects.
keywords	Construction Management; Constructional Engineering; Computer Applications
series	thesis:PhD
last changed	2003/02/12 22:37

_id	4c79
authors	Aguilar, Lorenzo
year	1986
title	A Format for a Graphical Communications Protocol
source	IEEE Computer Graphics and Applications vol. 6.no. 3 (March, 1986): pp. 52-62
summary	This article describes the requirements for a graphical format on which a graphical on-line communications protocol can be based. It is argued that on-line graphical communications is similar to graphical session capture, and thus the author proposes an interactive graphical communications format using the GKSM session metafile. The discussion includes items that complement the GKSM metafile such as a format for on-line interactive exchange. One key application area of such a format is multimedia on-line conferencing. Therefore, a conferencing software architecture for processing the proposed format is presented. This format specification is made available to those planning multimedia conferencing systems
keywords	user interface, communication, computer graphics, multimedia, standards
series	CADline
last changed	1999/02/12 15:07

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