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	a62c
authors	Flemming, Ulrich, Coyne, Robert F. and Glavin, Timothy J. (et al)
year	1988
title	A Generative Expert System for the Design of Building Layouts -- Version 2
source	Artificial Intelligence in Engineering: Design. editor. John J. Gero. Elsevier (Computational Mechanics Publications), 1988. PP. 445-464 : ill. includes bibliography
summary	The paper describes an attempt to increase the intelligence of a CAD system by adding capabilities (1) to systematically enumerate alternative solutions to a design problem, and (2) to take, at the same time, a broad spectrum of criteria or concerns into account. These capabilities are intended to complement the designer's abilities and performance. In connection with such attempts, fundamental problems arise when the objects to be designed have shape and are located in space. These problems are identified, and an approach to solve them is outlined. This approach is currently being tested over a range of domains all of which deal with the design of layouts of rectangles subject to constraints and criteria. The search for alternatives takes place in a state space with properties that make it possible to systematically explore and evaluate the power of various search strategies or planning paradigms. The state space is established through a domain-independent generator, while the evaluation of points in that space is carried out by a domain-dependent tester built up through a process of knowledge acquisition familiar from work with expert systems
keywords	design, expert systems, CAD, enumeration, shape grammars,architecture, intelligence, synthesis, space allocation, layout, floor plans
series	CADline
email
last changed	2003/06/02 13:58

_id	0833
authors	Gero, John S.
year	1988
title	Expert systems in Engineering Design : the Concept of Prototypes and their Application
source	Symposium on Knowledge Based Systems in Civil Engineering. 1988. pp. 37-45
summary	CADLINE has abstract only. This paper addresses the question of what sort of schemata do experts in engineering design use to allow the commencement and continuation of a design. It is suggested that a conceptual schema labelled prototype can be used to capture this expertise. Prototypes are generalizations at different levels of design experience and provide the bases of an approach to designing with computers. They structure design experience to make it applicable in similar situations. The paper elaborates the concept and briefly describes an application
keywords	structures, engineering, expert systems, prototypes, design, knowledge
series	CADline
email
last changed	2003/06/02 13:58

_id	f65d
authors	Kalisperis, L.N.
year	1988
title	A Conceptual Framework for Computing in Architectural Design
source	Pennsylvania State University
summary	A brief historical overview of architectural design reveals that there has been a slow development in the conceptualization of the scope of architectural design. Advancing our understanding of the architectural design process reveals new directions for computing in architectural design. This study proposes a conceptual framework for an integrated computing environment. Design disciplines have embarked on a rigorous search for theoretical perspectives and methods that encompass a comprehensive view of architecture. Architectural design has been seen as a sequential process similar to that of industrial design. Attempts to formalize this process based on industrial design methods solved only a fraction of the overall integration problem. The resultant models are inadequate to deal with the complexity of architectural design. Emerging social problem-solving paradigms seek to construct a cognitive psychology of problem solving and have a direct relevance to architectural design. These problem-solving activities include structured, semi-structured, and ill-defined problems, which are included to varying degrees in each problem situation across a continuum of difficulty. Problem solving in architectural design involves the determination of certain objectives and also whether or not it is possible to accomplish them. Developments in computing in architecture have paralleled developments in architectural methodologies. The application of computing in architectural design has predominantly focused only on sequential process, optimum solutions, and quantifiable tasks of the design process. Qualitative, generative, tasks of architectural design were dealt with through the introduction of paradigms from linguistics and knowledge-based systems borrowed from engineering applications. Although the application of such paradigms resulted in some success, this reductionist approach to computing in architecture fragmented its integration into the design process. What is required, therefore, is a unified approach to computing in architecture based on a holistic view of the architectural design process. The model proposed in this study provides such a conceptual framework. This model shifts the focus from product to process and views the design problem as a goal-oriented problem-solving activity that allows a design team to identify strategies and methodologies in the quest for design solutions.
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	861a
authors	Sedas, Sergio W. and Talukdar, Sarosh N.
year	1987
title	A Disassembly Planner for Redesign
source	The Winter Annual Meeting of the American Society of Mechanical Engineers. Symposium of Intelligent and Integrated Manufacturing Analysis and Synthesis. December, 1987. Pittsburgh, PA: Engineering Design Research Center, CMU, 1988. [6] p. : ill. includes bibliography
summary	This paper describes an algorithm for generating plans for disassembling given objects. The plans are produced by a set of knowledge sources acting on a set of representations for the object. Both sets are arbitrarily expandable, so programs using the approach can grow continually in capability. Our present complement of knowledge sources and representations can tackle relatively difficult problems. Three examples are included. The first requires a good bit of geometric reasoning before appropriate subassemblies can be selected. The second and third require certain movable parts to be repositioned before disassembly can be achieved
keywords	algorithms, representation, synthesis, assemblies, knowledge, reasoning, mechanical engineering
series	CADline
last changed	2003/06/02 13:58

_id	c5ec
authors	Smith Shaw, Doris
year	1988
title	The Conceptual Approach to CAD Education
doi	https://doi.org/10.52842/conf.acadia.1988.035
source	Computing in Design Education [ACADIA Conference Proceedings] Ann Arbor (Michigan / USA) 28-30 October 1988, pp. 35-45
summary	Recent research at the Corps of Engineers Construction Engineering Research Laboratory (CERL) investigated embedded computer-based instruction for AutoCAD. The results of this study, which are the focus of this paper, indicated that the only factor which correlated with success in completing the final test was previous experience with another CAD system. Those who knew another CAD system had higher scores and required less than half the time to complete the lessons. Presumably their conceptual knowledge about CAD transferred to the new software environment, even though the Corps' study showed that they were initially biased against learning the new system. Such biased attitudes have been observed when users are asked to learn a second similar software of any kind. Architects who are deeply involved in computer-aided design have stated that one must learn to program the computer to build the conceptual framework for the creative process. We at CERL agree that an understanding of underlying graphics concepts is essential to the designer. Our research shows that giving students the freedom to explore an existing software program can result in the development of conceptual knowledge. Interviews also reveal that students can invent ways to meet individual objectives when "guided discovery" learning is encouraged.
series	ACADIA
last changed	2022/06/07 07:56

_id	6a1d
authors	Woodbury, Robert F.
year	1988
title	The knowledge based representation and manipulation of geometry
source	Carnegie Mellon University
summary	An approach to the integration of geometric information in knowledge based systems is described as an architecture for geometric reasoning. The general requirements for this integration arise from the need for rich geometry representations in engineering domains and the conflicting demands of current geometric modelling and knowledge based systems. Four concepts are used as a basis: (1) Classes of spatial sets, which act by inheritance as a means for incremental definition by specialization, (2) Features, which denote evaluated portions of a geometric model, (3) Abstractions, which provide partial representations of geometric objects, and (4) Constraints through which spatial relationships are expressed. These four concepts combine in a synergistic manner to define the complete architecture. A prototype implementation of the architecture, built using object oriented programming techniques and a boundary based solid modeller, has been achieved and demonstrated through examples in the domains of robot task planning and automotive parts design.
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	6ca4
authors	Woodbury, Robert F. and Oppenheim, Irving R.
year	1988
title	An Approach to Geometric Reasoning
source	20 p. : ill. Pittsburgh, PA: Engineering Design Research Center, CMU, June, 1988. EDRC-48-06-88. includes bibliography
summary	An approach to the integration of geometric information in knowledge based CAD systems is described as an architecture for geometric reasoning. The general requirements for this integration arise from the need for rich geometry representations in engineering domains and the conflicting demands of current geometric modelling and knowledge based systems. Four concepts are used as a basis: (1) Classes of spatial sets, which act by inheritance as a means for incremental definition by specialization; (2) features, which denote evaluated portions of a geometric model; (3) abstractions, which provide partial representations of geometric objects; and (4) constraints through which spatial relationships are expressed. These four concepts combine in a synergistic manner to define the complete architecture. A prototype implementation of the architecture, built using object oriented programming techniques and a boundary based solid modeler, has been achieved and demonstrated. In this paper each of the concepts and their integration into a whole are described
keywords	geometric modeling, knowledge base, systems, constraints, design, knowledge, architecture, methods, reasoning, integration
series	CADline
email
last changed	2003/06/02 10:24

_id	c7f4
authors	Bancroft, Pamela J. (ed.)
year	1988
title	Computing in Design Education [ACADIA Conference Proceedings]
doi	https://doi.org/10.52842/conf.acadia.1988
source	ACADIA ‘88 Conference Proceedings /Ann Arbor (Michigan / USA) 28-30 October 1988, 311 p.
summary	Progress is being made towards integrating computing into architectural design. This progress is not being made in a coordinated and systematic manner, which is actually a positive factor. Architects will never be scientists or engineers, who hold the distinguishing characteristic of being masters of the scientific method. We have never been so incumbered, although we certainly have given it our best effort. Architects are creative problem solvers, primarily driven by intuition, while coming from a sense of the past and the logic of the present. Our initial attempts at integrating computing into the studio, as evidenced by this collection of papers, is very diverse, based on differing pedagogical assumptions, and the achieving of significantly different results. This would appear to be evidence of a revolutionary approach to the problem rather than a scientific evolutionary approach. Terrific! This is when we as architects are at our best. Although we reach a great number of emphatically dead ends, the successes and discoveries achieved along the way are significant. The diversity and quality of papers submitted suggest that we are indeed pursuing the task of integration in our typical, individual, intuitive, logical manner. I commend all of the authors who submitted proposals and thank them for expanding the envelope of integration into their personal exploration.
series	ACADIA
last changed	2022/06/07 07:49

_id	0697
authors	Balachandran, M.B. and Gero, John S.
year	1988
title	Development of a Knowledge-Based System for Structural Optimization
source	Dordrecht: Kluwer, 1988. pp. 17-24
summary	Optimization is a useful and challenging activity in structural design. It provides designers with tools for better designs while saving time in the design process. The features of conventional optimization tools are presented and their limitations are outlined. The impact and role of knowledge-based methodologies in structural optimization processes is discussed. Structural optimization involves a number of tasks which require human expertise, and are traditionally assisted by human designers. These include design optimization formulation, problem recognition and the selection of appropriate algorithm(s). In this representation and processing of constraints are crucial tasks. This paper presents a framework for developing a knowledge-based system to accomplish these tasks. Based on the needs and the nature of the optimization process, a conceptual architecture of an integrated knowledge-based system is presented. The structure and functions of various components of the system are described
keywords	knowledge base, systems, integration, optimization, structures, engineering
series	CADline
email
last changed	2003/06/02 13:58

_id	c568
authors	Balachandran, M.B. and John S. Gero
year	1987
title	A Model for Knowledge Based Graphical Interfaces
source	AI '87: Proceedings of the Australian Joint Artificial Intelligence Conference. 1987. pp. 505-521. Also published in Artificial Intelligence Developments and Applications edited by J. S. Gero and R Stanton, North-Holland Pub. 1988. -- CADLINE has abstract only.
summary	This paper describes a model for knowledge-based graphical interface which incorporates a variety of knowledge of the domain of application. The key issues considered include graphics interpretation, extraction of features of graphics objects and identification of prototype objects. The role of such knowledge-based interfaces in computer-aided design is discussed. A prototype system developed in Prolog and C is described and its application in the domain of structural engineering is demonstrated
keywords	user interface, computer graphics, knowledge base, systems, civil engineering, structures
series	CADline
email
last changed	2003/06/02 13:58

_id	2a36
authors	Ben-Moshe, R. and Sorgen, A.
year	1988
title	Parametric Shape Definition by Example
source	12, [13] p., [7] p. of ill. Israel: MICROCAD, 1988(?). includes bibliography
summary	Incorporation of parametric design facilities into CAD systems presents some serious problems. The major issues are: (1) functionality - the need to cater for a great variety of designs, (2) natural user interface, with no need for the user to acquire programming skills, (3) integration and consistency with the 'host' CAD environment
keywords	parametrization, user interface, CAD, geometric modeling, mechanical engineering, CAM
series	CADline
last changed	2003/06/02 13:58

_id	c9e4
authors	Birmingham, William P. and Siewiorek, Daniel P.
year	1988
title	Automated knowledge Acquisition for a Computer Hardware Synthesis System
source	19 p. : ill. Engineering Design Research Center, CMU, June, 1988. EDRC 18-06-88. includes bibliography
summary	The MICON Synthesizer Version 1 (M1) is a rule-based system which produces a complete small computer design from a set of abstract specifications. The ability of M1 to produce designs depends on the encoding of large amounts of domain knowledge. An automated knowledge acquisition tool, CGEN, works symbiotically with M1 by gathering the knowledge required by M1. CGEN acquires knowledge about how to build and when to use various computer structures. This paper overviews the operation of CGEN by providing an example of the types of knowledge acquired and the mechanisms employed. A novel knowledge-intensive generalization scheme is presented. Generalization is a pragmatic necessity for knowledge acquisition in this domain. A series of experiments to test CGEN's capabilities are explained. A description of the architecture and knowledge-base of M1 is also provided
keywords	electrical engineering, automation, knowledge acquisition, knowledge base, systems
series	CADline
last changed	2003/06/02 13:58

_id	8ac0
authors	Birmingham, William P., Gupta, Anurag P. and Siewiorek, Daniel P.
year	1988
title	The MICON System for Computer Design
source	11 p. : ill. Pittsburgh, PA: Engineering Design Research Center, CMU, November, 1988. EDRC 18-10-89. includes bibliography
summary	The MICON system is an integrated collection of programs which automatically synthesizes small computer systems from high level specifications. The system address multiple levels of design, from logical through physical, providing a rapid prototyping capability. Two programs form MICON's nucleus: a knowledge-based synthesis tool called M1; and, an automated knowledge acquisition tool named CGEN which is used to teach M1 how to design. Other tools in the MICON system are an integrated database and associated data management tools. The system is fully functional, having been used to generate working designs. This paper describes the architecture and operation of the MICON system
keywords	integrated circuits, electrical engineering, design, systems, automation, integration
series	CADline
last changed	2003/06/02 13:58

_id	ab54
authors	Coyne, Richard D.
year	1988
title	Logic Models of Design
source	317 p. London: Pitman, 1988. CADLINE has abstract only
summary	This book constitutes both a theoretical and a technical exploration into modelling design tasks in logic. It provides a framework for describing design processes based on logic, achieved primarily by gathering together various strands evident in theories of reasoning, problem solving, design and knowledge engineering. The book demonstrates the applicability of logic programming and knowledge-based techniques to design, particularly in the area of controlling generative systems. The design task by which this is demonstrated is spatial layout, though the issues reach further than this one application
keywords	reasoning, logic, design process
series	CADline
email
last changed	2003/05/17 10:13

_id	56be
authors	Dillon, Andrew and Marian, Sweeney
year	1988
title	The Application of Cognitive Psychology to CAD Input/Output
source	Proceedings of the HCI'88 Conference on People and Computers IV 1988 p.477-488
summary	The design of usable human-computer interfaces is one of the primary goals of the HCI specialist. To date however interest has focussed mainly on office or text based systems such as word processors or databases. Computer aided design (CAD) represents a major challenge to the human factors community to provide suitable input and expertise in an area where the users goals and requirements are cognitively distinct from more typical HCI. The present paper is based on psychological investigations of the engineering domain, involving an experimental comparison of designers using CAD and the more traditional drawing board. By employing protocol analytic techniques it is possible to shed light on the complex problem-solving nature of design and to demonstrate the crucial role of human factors in the development of interfaces which facilitate the designers in their task. A model of the cognition of design is proposed which indicates that available knowledge and guidelines alone are not sufficient to aid CAD developers and the distinct nature of the engineering designer's task merits specific attention.
keywords	Cognitive Psychology; Interface Design; Protocol Analysis
series	other
last changed	2002/07/07 16:01

_id	c057
authors	Ganter, John H.
year	1988
title	Interactive Graphics : Linking the Human to the Model
source	GIS/LIS'88 Proceeding accessing the world (3rd. : 1988 : San Antonio). December, 1988. Vol. 1: pp. 230-239 : ill. includes bibliography
summary	Discovery and innovation, which have traditionally involved thinking visually and producing images, increasingly benefit from labor-saving devices like GIS and CAD. As new visualization technologies are implemented, it is particularly important to understand the human faculties which use pictures as tools in thinking. Science and engineering define problems, explain processes, and design solutions through observation, imagination and logic. This conceptual thought relies on a cognitive `database' of sensed verbal and non-verbal information, which is retained, managed, and updated within the short and long-term human memories. Research suggests that the individual must actively manipulate a phenomenon under study and its representations to enhance and maintain this database, and to produce abstractions and generalizations. Graphics are particularly important in this process of discovering correlations, contradictions and connections, and subsequent communication to others. Graphics offer high information density, simultaneity, variable detail and the capacity for showing multivariate relations. A `gestalt' property leads to the discovery of new relationships since the graphic whole always exceeds the sum of its parts. A cycle occurs in which the individual interacts with the phenomenon and produces explicit knowledge in the form of graphics and text, testing and refining each against knowledge and abstractions held in the mind
keywords	information, computer graphics, perception, user interface, visualization, cognition, abstraction
series	CADline
last changed	2003/06/02 13:58

_id	436b
authors	Gero, John S. (editor)
year	1988
title	Artificial Intelligence in Engineering : Robotics and Processes
source	403 p. Amsterdam: Elsevier/CMP, 1988. CADLINE has abstract only
summary	This volume contains the papers in the robotics and processes areas from the Third International Conference on Artificial Intelligence in Engineering. Robotics has the potential to change the physical face of engineering and has no counterpart in traditional engineering. It requires the integration of numerous disparate aspects of engineering. There is a fundamental requirement for geometric and spatial reasoning of a qualitative kind. A variety of other processes in engineering are being examined through the artificial intelligence lens. The material collected under the process rubric demonstrates both the benefits and potential of utilizing this approach. The papers are presented under the following headings: Robotics; Geometric and Spatial Reasoning; Interpretation Processes; Reasoning Processes; Planning and Scheduling Processes; Interfaces
keywords	AI, robotics, reasoning, planning, user interface, engineering, construction
series	CADline
email
last changed	2003/06/02 13:58

_id	4cbb
authors	Gero, John S. (editor)
year	1988
title	Artificial Intelligence in Engineering : Design
source	465 p. Amsterdam: Elsevier/CMP, 1988. CADLINE has abstract only
summary	This volume contains the papers in the design area from the Third International Conference on Artificial Intelligence in Engineering. Design is that most fundamental but least understood of engineering activities. Most current computer- aided design systems are primarily concerned with graphical representations of objects as they are being designed. The introduction of artificial intelligence into engineering has fostered the burgeoning interest in formal methods of engineering design. These methods treat design as being modelable using reasoning processes. The papers related to design can be grouped into two categories: those primarily concerned with design knowledge in its various forms and those primarily concerned with applications in specific domains. The papers in this volume are presented under the following headings: Design Knowledge and Representation; Integrated Circuit Design; Mechanical Engineering Design; Structural Engineering Design; Simultaneous Engineering Design; Architectural Design
keywords	AI, design, engineering, knowledge, applications, architecture, CAD, CAE, integrated circuits, representation, structures, civil engineering
series	CADline
email
last changed	2003/06/02 13:58

_id	8385
authors	Holtz, Neal M. and Rasdorf, William J.
year	1988
title	An Evaluation of Programming Languages and Language Features for Engineering Software Development
source	International Journal of Engineering with Computers. Springer-Verlag, 1988. vol. 3: pp. 183-199
summary	Also published as 'Procedural Programming Languages for the Development of CAD and CAE Systems Software,' in the proceedings of ASME International Conference on Computers in Engineering (1987 : New York, NY). The scope of engineering software has increased dramatically in the past decade. In its early years, most engineering applications were concerned solely with solving difficult numerical problems, and little attention was paid to man- machine interaction, to data management, or to integrated software systems. Now computers solve a much wider variety of problems, including those in which numerical computations are less predominant. In addition, completely new areas of engineering applications such as artificial intelligence have recently emerged. It is well recognized that the particular programming language used to develop an engineering application can dramatically affect the development cost, operating cost. reliability, and usability of the resulting software. With the increase in the variety, functionality, and complexity of engineering software, with its more widespread use, and with its increasing importance, more attention must be paid to programming language suitability so that rational decisions regarding language selection may be made. It is important that professional engineers be aware of the issues addressed in this paper, for it is they who must design, acquire, and use applications software, as well as occasionally develop or manage its development. This paper addresses the need for engineers to possess a working knowledge of the fundamentals of computer programming languages. In pursuit of this, the paper briefly reviews the history of four well known programming languages. It then attempts to identify and to look critically at the attributes of programming languages that significantly affect the production of engineering software. The four procedural programming languages chosen for review are those intended for scientific and general purpose programming, FORTRAN 77, C, Pascal, and Modula-2. These languages are compared and some general observations are made. As it is felt important that professional engineers should be able to make informed decisions about programming language selection, the emphasis throughout this paper is on a methodology of evaluation of programming languages. Choosing an appropriate language can be a complex task and many factors must be considered. Consequently, fundamentals are stressed
keywords	programming, engineering, languages, software, management, evaluation, FORTRAN, C, PASCAL, MODULA-2, CAD, CAE
series	CADline
last changed	2003/06/02 13:58

_id	0803
authors	Jabri, Marwan A. and Skellern, David J.
year	1988
title	Automatic Floorplan Design Using PIAF
source	August, 1988. 36 p. : ill. tables
summary	This paper presents PIAF (a Package for Intelligent and Algorithmic Floorplanning), developed at Sydney University Electrical Engineering (SUEE) for use in custom integrated circuit design. Floorplanning plays a crucial role in the design of custom integrated circuits. When design is approached in a top-down fashion, the function to be implemented on silicon is first decomposed in a conceptual phase into a Functional Block Diagram (FBD). This FBD has a 'blocks and buses' structure where blocks represent sub- functions and buses represent the interconnections that carry data and other information between blocks. The decomposition of the function into sub-functions is hierarchical and aims at reducing the complexity of the design problem. When the FBD is known, the floorplanning process may be performed. When this task is performed manually, the designer searches for a relative placement of the blocks and for an area and shape for each block to minimize the overall chip layout area while at the same time meeting design constraints such as design tool limitations, interconnection characteristics and technological design rules. PIAF is a knowledge-based system (KBS) that has been developed at SUEE during the last four years. It relies on a strategy that partitions the floorplanning task in a way that allows efficient use of heuristics and specialized design knowledge in the generation and pruning of the solution space. This paper presents the operation of PIAF and discusses several implementation issues including; KBS structure, knowledge representation, knowledge acquisition, current context memory design, design quality factors and explanation facility. This paper uses a running example to present the operation of each PIAF's KBS-based solving phases
keywords	knowledge, representation, knowledge acquisition, electrical engineering, design, integrated circuits, knowledge base, systems, layout, synthesis
series	CADline
last changed	2003/06/02 10:24

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