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 ed11
authors Kieffer, Bruce D.
year 1986
title An Interactive CAD Based System Integrating Visual Analysis & Design
source ACADIA Workshop ‘86 Proceedings - Houston (Texas - USA) 24-26 October 1986, pp. 191-202
doi https://doi.org/10.52842/conf.acadia.1986.191
summary The paper describes the development of an enhanced CAD based instructional system specifically focusing on a linkage between the analytical and creative tasks necessary during the early schematic or conceptual design. The first two components of the system are fairly conventional items and include a tutorial and library of six (6) two and three dimensional CAD design files which document the visual and organizational aspects of archetype buildings and spaces. The CAD facility allows a user to selectively highlight and combine for review, various features of a buildings design. This allows its users to literally, "build-up" an understanding of the complexity of factors at work in recognizably good building. The final component to a customized CAD environment allowing users to develop their own designs with the same tools used during analysis of the archetypes. In addition to a description of the system, the paper identifies the effectiveness measures and instructional setting being established for evaluation of the system.
series ACADIA
email
last changed 2022/06/07 07:52

_id 678e
authors Aish, Robert
year 1986
title Three-dimensional Input and Visualization
source Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 68-84
summary The aim of this chapter is to investigate techniques by which man-computer interaction could be improved, specifically in the context of architectural applications of CAD. In this application the object being designed is often an assembly of defined components. Even if the building is not actually fabricated from such components, it is usually conceptualized in these terms. In a conventional graphics- based CAD system these components are usually represented by graphical icons which are displayed on the graphics screen and arranged by the user. The system described here consists of three- dimensional modelling elements which the user physically assembles to form his design. Unlike conventional architectural models which are static (i.e. cannot be changed by the users) and passive (i.e. cannot be read by a CAD system), this model is both 'user generated' and 'machine readable'. The user can create, edit and view the model by simple, natural modelling activities and without the need to learn complex operating commands often associated with CAD systems. In particular, the user can view the model, altering his viewpoint and focus of attention in a completely natural way. Conventional computer graphics within an associated CAD system are used to represent the detailed geometry which the different three-dimensional icons may represent. In addition, computer graphics are also used to present the output of the performance attributes of the objects being modelled. In the architectural application described in this chapter an energy- balance evaluation is displayed for a building designed using the modelling device. While this system is not intended to offer a completely free-form input facility it can be considered to be a specialist man-machine interface of particular relevance to architects or engineers.
series CAAD Futures
email
last changed 2003/11/21 15:15

_id a35a
authors Arponen, Matti
year 2002
title From 2D Base Map To 3D City Model
source UMDS '02 Proceedings, Prague (Czech Republic) 2-4 October 2002, I.17-I.28
summary Since 1997 Helsinki City Survey Division has proceeded in experimenting and in developing the methods for converting and supplementing current digital 2D base maps in the scale 1:500 to a 3D city model. Actually since 1986 project areas have been produced in 3D for city planning and construction projects, but working with the whole map database started in 1997 because of customer demands and competitive 3D projects. 3D map database needs new data modelling and structures, map update processes need new working orders and the draftsmen need to learn a new profession; the 3D modeller. Laser-scanning and digital photogrammetry have been used in collecting 3D information on the map objects. During the years 1999-2000 laser-scanning experiments covering 45 km2 have been carried out utilizing the Swedish TopEye system. Simultaneous digital photography produces material for orto photo mosaics. These have been applied in mapping out dated map features and in vectorizing 3D buildings manually, semi automatically and automatically. In modelling we use TerraScan, TerraPhoto and TerraModeler sw, which are developed in Finland. The 3D city model project is at the same time partially a software development project. An accuracy and feasibility study was also completed and will be shortly presented. The three scales of 3D models are also presented in this paper. Some new 3D products and some usage of 3D city models in practice will be demonstrated in the actual presentation.
keywords 3D City modeling
series other
email
more www.udms.net
last changed 2003/11/21 15:16

_id 0f76
authors Balachandran, M. B. and Gero, John S.
year 1986
title Knowledge-based Design Optimization
source IAAI'86 Conference. 1986. pp. i:4:1-14
summary CADLINE has abstract only. Optimization is a well understood process in design domains. A designer formulates the design problem as a single criterion or multicriteria optimization problem and then selects an appropriate optimization algorithm to search for the optimal values for the design variables. The formulation and algorithm selection procedures have been considered to be activities which relied on substantive human knowledge. This paper describes a computer system, OPTIMA, which formulates design optimization problems from a pseudo-English description into canonical algebraic expressions. It then recognizes the formulation and selects appropriate algorithm(s) for their solutions. Finally, it runs the selected algorithm(s) and sends the results to the original descriptions. Areas of expert knowledge involved in carrying out the above tasks are identified. Such knowledge is explicitly encoded in the systems. The basic philosophy and key features of the system are described and are illustrated by examples
keywords algorithms, expert systems, knowledge base, design, optimization, structures, engineering
series CADline
email
last changed 2003/06/02 13:58

_id 6002
authors Barduzzi, Ondina and Pascolo, Carlo
year 1986
title CAD System (Computer Aided Design) for the Planning of the Territory, with Reference to the Automatical Estimate of Works of Urbanization
source Teaching and Research Experience with CAAD [4th eCAADe Conference Proceedings] Rome (Italy) 11-13 September 1986, pp. 167-179
doi https://doi.org/10.52842/conf.ecaade.1986.167
summary Any applied research, no matter what discipline is concerned, needs affined and suitable tools; as regards the studies in the field of architecture and planning, the use of automatic systems of analysis, data ordering and comparison is of particular interest. The quickness of operations by means of computers and the corresponding graphical representation gives new possibilities for scientific work, once impossible, not certainly because of conceptual limits, but practically, for the limits of available tools. It is the wideness of applications of computers to be pointed out, for although studied for scientific reasons, their practical usefulness is often enormous. This has been generally verified. It guilts in particular for the CAD System, proposed and explained in this paper. The practical utility this and other systems from the same field have for the public administration, contractors and consultants is well known and therefore not necessary to be described further. The use of such systems is particularly convenient in those sectors where the graphical representation is the basic part of the production process.

series eCAADe
last changed 2022/06/07 07:54

_id 4ed0
authors Bartels, R.H., Beatty, J.C. and Barsky, B.A.
year 1986
title An Introduction to Splines for Use in Computer Graphics and Geometric Modeling
source xiv, 476 p. : ill. (some col.) Los Altos, California: Morgan Kaufmann Pub. Inc., 1986. Forewords by Pierre Bezier and Robin A. Forrest. Includes bibliography: p. 455-465 and index
summary Discusses the use of splines from the point of view of the computer scientist concentrating on parametric spline curves and parametric,tensor-product spline surfaces
keywords splines, theory, computer graphics, computational geometry
series CADline
last changed 2003/06/02 14:42

_id b25c
authors Bergeson, Donald E. and Cetin, Randal F.
year 1986
title ADAM - Architectural Design Applications Model
source ACADIA Workshop ‘86 Proceedings - Houston (Texas - USA) 24-26 October 1986, pp. 37-54
doi https://doi.org/10.52842/conf.acadia.1986.037
summary This paper will describe ADAM, a project to explore the potential for interfacing independent graphics software for the purpose of developing a microcomputer based design system. This system will be implemented in three undergraduate design studios at the University of Illinois (Urbana-Champaign) School of Architecture. The three design studios are part of an experimental project to determine the usefulness of computers in the architectural design curriculum. The concept used throughout the design of this system is: "make use of what already exists, but use it smoothly together in such a way that the management system is totally invisible to the user." Many low- end quality graphics software packages are commercially available. Each has the capacity to address some aspect of the architectural design process, none will do it all . The problem is a lack of compatibility between software. ADAM is a management system designed to invisibly control and interface the use of an assembly of graphics programs and data base management systems to achieve compatibility. Because of these compatible interfaces, new and varied design tools can be created from existing software..
series ACADIA
last changed 2022/06/07 07:54

_id a7de
authors Bic, Lubomir and Jonathan P. Gilbert
year 1986
title Learning from AI : New Trends in Database Technology
source IEEE Computer. March, 1986. vol. 19: pp. 44-54. includes bibliography
summary With the steadily increasing demand for user-oriented systems, new trends in database technology have evolved outside of the scope of the traditional data models. The authors are concentrated in this article on two closely related efforts: The incorporation of more semantic modeling capabilities into database models, and the development of better user environment, which include user friendly interfaces and support different user views of the content and organization of the data
keywords AI, user interface, database, relational database
series CADline
last changed 1999/02/12 15:07

_id 644f
authors Bijl, Aart
year 1986
title Designing with Words and Pictures in a Logic Modelling Environment
source Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 128-145
summary At EdCAAD we are interested in design as something people do. Designed artefacts, the products of designing, are interesting only in so far as they tell us something about design. An extreme expression of this position is to say that the world of design is the thoughts in the heads of designers, plus the skills of designers in externalizing their thoughts; design artifacts, once perceived and accepted in the worlds of other people, are no longer part of the world of design. We can describe design, briefly, as a process of synthesis. Design has to achieve a fusion between parts to create new parts, so that the products are recognized, as having a right and proper place in the world of people. Parts should be understood as referring to anything - physical objects, abstract ideas, aspirations. These parts occur in some design environment from which parts are extracted, designed upon and results replaced; in the example of buildings, the environment is people and results have to be judged by reference to that environment. It is characteristic of design that both the process and the product are not subject to explicit and complete criteria. This view of design differs sharply from the more orthodox understanding of scientific and technological endeavours which rely predominantly on a process of analysis. In the latter case, the approach is to decompose a problem into parts until individual parts are recognized as being amenable to known operations and results are reassembled into a solution. This process has a peripheral role in design when evaluating selected aspects of tentative design proposals, but the absence of well-defined and widely recognized criteria for design excludes it from the main stream of analytical developments.
series CAAD Futures
last changed 2003/11/21 15:16

_id caadria2006_601
id caadria2006_601
authors BINSU CHIANG, MAO-LIN CHIU
year 2006
title PRIVATE/UN-PRIVATE SPACE: Scenario-based Digital Design for Enhancing User Awareness
source CAADRIA 2006 [Proceedings of the 11th International Conference on Computer Aided Architectural Design Research in Asia] Kumamoto (Japan) March 30th - April 2nd 2006, 601-603
doi https://doi.org/10.52842/conf.caadria.2006.x.s8b
summary Context awareness is important for human senses of places as well as human computer interaction. The aim of this research paper is focusing on controlling the user's privacy in a smart space which is adaptive to different users for enhancing the user's awareness in his diary life. In Environmental Psychology, the definition of privacy is that an individual has the control of deciding what information of himself is released to others, and under how he interact with others. (Westin 1970) And privacy is categorized as the linguistic privacy and visual privacy. (Sundstorm 1986). Solutions for privacy control: Plan Layout, Vision Boundary, Access Control and Architecture Metaphor - the transmission of information is not ascertainable for every single user. Although information are shown in public, but information is implied by cues and symbols. Only a certain user or a group of users have access to the full context of information. The methodology is to form an analytic framework to study the relationship between information, user and activities by using the computational supports derived from KitchenSense, ConceptNet, Python, 3d Studio Max and Flash; and to record patterns built up by users' behaviour and actions. Furthermore, the scenario-based simulation can envision the real world conditions by adding interfaces for enhancing user awareness.
series CAADRIA
email
last changed 2022/06/07 07:49

_id 4361
authors Bishop, G. and Weimer, D.M.
year 1986
title Fast Phong Shading
source Computer Graphics (20) 4 pp. 103-106
summary Computer image generation systems often represent curved surfaces as a mesh of polygons that are shaded to restore a smooth appearance. Phong shading is a well known algorithm for producing a realistic shading but it has not been used by real-time systems because of the 3 additions, 1 division and 1 square root required per pixel for its evaluation. We describe a new formulation for Phong shading that reduces the amount of computation per pixel to only 2 additions for simple Lambertian reflection and 5 additions and 1 memory reference for Phong's complete reflection model. We also show how to extend our method to compute the specular component with the eye at a finite distance from the scene rather than at infinity as is usually assumed. The method can be implemented in hardware for real-time applications or in software to speed image generation for almost any system.
series journal paper
last changed 2003/11/21 15:16

_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 4431
authors Calderaro, V. and Platone, C.
year 1986
title Information systems and internvention technologies programmed to aid the energy saving within the limits of the existing building property rescue
source Teaching and Research Experience with CAAD [4th eCAADe Conference Proceedings] Rome (Italy) 11-13 September 1986, pp. 192-201
doi https://doi.org/10.52842/conf.ecaade.1986.192
summary In our national territory the rescue of the existing building property is a very important problem. For that reason, starting front the presupposition that the existing buildings, restoration finds its real achievement by means of technological and installing interventions strictly connected with the energy costs and consumptions, this study sets as a planning method on various degrees to analyze, single out and propose the possible solutions based on qualitative and quantitative researches into the thermo-physical behaviour of the above-mentioned buildings. From a research done into the principal building properties related with the different national areas we can single out significant morphological samples and typical technological structures. This first analytical study allows the singling out of significant building models on which it's possible to value the thermal behaviour and possible subsequent restoring interventions by applying computerized mathematical models or by operating diagrams deduced from them. First of all, these mathematical models for simulation allow a valuation of the main thermal parameters (dispersion both in absolute value and in volumetric factor, medium thermal transmittance (U value) of geometrical models deduced from the typical above - mentioned cases.
series eCAADe
last changed 2022/06/07 07:54

_id 45ac
authors Capitanio, L., Nasoni, M., Piroddi, E., Scandurra, E. and Schiavoni, U.
year 1986
title Programs for the Representation of the Territorial DataPrograms for the Representation of the Territorial DataPrograms for the Representation of the Territorial Data
source Teaching and Research Experience with CAAD [4th eCAADe Conference Proceedings] Rome (Italy) 11-13 September 1986, pp. 39-44
doi https://doi.org/10.52842/conf.ecaade.1986.039
summary The programs afterwards briefly described, were used during the courses of Urban Planning of the Department of Building Techniques and Environment Control of Engineering Faculty of Rome. Those programs are chiefly directed to didactic use and to optimization of the graphic representation of regional and urban phenomena. Both those programs make use of censual data from ISTAT stored, by Urban Planning courses teachers, on Univac/ 1100 computer in Interdepartmental Center for Scientific Calculus of Rome First University.
series eCAADe
last changed 2022/06/07 07:54

_id 2b3c
authors Carrara, G. and Novembri, G.
year 1986
title KAAD - Knowledge-based Assistance for Architectural Design
source Teaching and Research Experience with CAAD [4th eCAADe Conference Proceedings] Rome (Italy) 11-13 September 1986, pp. 202-212
doi https://doi.org/10.52842/conf.ecaade.1986.202
summary The research being conducted at the CABD LAB at the Department of Building and Environmental Control Technologies is geared to the production of an Expert System for architectural design, which is able to perform interactive design tasks and help to provide accurate and complete description of the buildings in question. The Expert System will control the design process, continually ensuring consistency between the definitions of the designer and a given set of constraints. Accordingly, the System will be able to determine the effects of of definition, performing the choices taken at different stages necessary calculations and checks. The System is based on a general representation of the building objects, from individual components to the whole building defined in terms of a number of hierarchical, topological and functional relational structures resulting from earlier research conducted into the automatic management of architectural design since 1975.

series eCAADe
last changed 2022/06/07 07:54

_id 6643
authors Carrara, Gianfranco and Novembri, Gabriele
year 1986
title Expert System for Building Design
source Congress of the International Council for Building Research, Studies and Documentation (10th : 1986 : Washington). vol. 2: pp. 651-658. includes bibliography. -- abstract also in French
summary At the CABD LAB at the University of Rome, an interactive expert system for architecture is being implemented to supervise building design at every stage of development. The system operates by checking the consistency of design choices against given sets of constraints, and by automatically checking the design process. It is therefore an innovation with respect to current architectural software developed as specific design aids. The system is based on a general representation of building objects (from components to the whole building) by means of semantic nets and a set of inferential procedures. The general representation is developed by making explicit the relational structures according to which architects organize their knowledge about building objects. To do this, the `Frame' formalism is used: this is a knowledge representation technique used in the field of artificial intelligence. It is then shown that such an expert CAAD system is a general purpose tool for architectural design, enabling architects to assess any constraint and/or building attribute by means of a declarative method, which in no way affects their own specific design methodologies
keywords semantic networks, representation, constraints, expert systems, CAD, building, design process, knowledge, frames
series CADline
last changed 2003/06/02 13:58

_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 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 c62d
authors Davis, Randall
year 1986
title Knowledge-Based Systems
source Science February, 1986. vol. 231: pp. 957-963 : ill. includes bibliography.
summary First developed two decades ago, knowledge-based systems have seen widespread application in recent years. While performance has been a strong focus of attention, building such systems has also expanded our conception of a computer program from a black box providing an answer to something capable of explaining its answers, acquiring new knowledge, and transferring knowledge to students. These abilities derive from distinguishing clearly what the program knows from how that knowledge will be used, making it possible to use the same knowledge in different ways
keywords AI, knowledge base, systems, theory
series CADline
last changed 1999/02/12 15:08

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