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	acadia22pr_142
id	acadia22pr_142
authors	Mitchell, R. Scott
year	2022
title	The Arroyo Bridge - Collaborative Robotics for Large Scale Fabrication
source	ACADIA 2022: Hybrids and Haecceities [Projects Catalog of the 42nd Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9860805-7-4]. University of Pennsylvania Stuart Weitzman School of Design. 27-29 October 2022. edited by M. Akbarzadeh, D. Aviv, H. Jamelle, and R. Stuart-Smith. 142-147.
summary	The Arroyo Bridge, spanning 80-feet across a ravine near Los Angeles, is anchored by four, 35-foot deep concrete pilings, hand-bored into the hillside to provide adequate support in the alluvial soil. An asymmetrical superstructure of over 600 discrete parts, the bridge is joined by unique part-to-part connections that frame the pedestrian walkway. From a distance, the biomorphic shape integrates into a steep landscape of eucalyptus, coming into view only upon approach. The tubular silhouette draws inspiration from the vascular architecture of leaves and layered branching system of trees in the neighboring forest.
series	ACADIA
type	project
email
last changed	2024/02/06 14:06

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 In contrast to the many books that describe how to use particular programs (and which therefore go out of date very quickly), Digital Design Media constructs a lasting theoretical framework, which will make it easier to understand a great number of programs-existing and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 Clear structure, numerous historical references, and hundreds of illustrations make this framework both accessible to the nontechnical professional and broadening for the experienced computer-aided designer.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

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

_id	f507
authors	Mitchell, W.
year	1990
title	The Logic of Architecture: Design, Computation and Cognition
source	The MIT Press, Cambridge
summary	The Logic of Architecture is the first comprehensive, systematic, and modern treatment of the logical foundations of design thinking. It provides a detailed discussion of languages of architectural form, their specification by means of formal grammars, their interpretation, and their role in structuring design thinking. Supplemented by more than 200 original illustrations, The Logic of Architecture reexamines central issues of design theory in the light of recent advances in artificial intelligence, cognitive science, and the theory of computation. The richness of this approach permits sympathetic and constructive analysis of positions developed by a wide range of theorists and philosophers from Socrates to the present. Mitchell first considers how buildings may be described in words and shows how such descriptions may be formalized by the notation of first order predicate calculus. This leads to the idea of a critical language for speaking about the qualities of buildings. Turning to the question of representation by drawings and scale models, Mitchell then develops the notion of design worlds that provide graphic tokens which can be manipulated according to certain grammatical rules. In particular, he shows how domains of graphic compositions possible in a design world may be specified by formal shape grammars. Design worlds and critical languages are connected by showing how such languages may be interpreted in design worlds. Design processes are then viewed as computations in a design world with the objective of satisfying predicates of form and function stated in a critical language.
series	other
last changed	2003/04/23 15:14

_id	4c7e
authors	Mitchell, W.
year	1995
title	City of Bits: space, place, and the infobahn
source	The MIT Press
summary	Entertaining, concise, and relentlessly probing, City of Bits is a comprehensive introduction to a new type of city, a largely invisible but increasingly important system of virtual spaces interconnected by the emerging information superhighway. William Mitchell makes extensive use of concrete, practical examples and illustrations in a technically well-grounded yet accessible examination of architecture and urbanism in the context of the digital telecommunications revolution, the ongoing miniaturization of electronics, the commodification of bits, and the growing domination of software over materialized form. In seven chapters - Pulling Glass, Electronic Agoras, Cyborg Citizens, Recombinant Architecture, Soft Cities, Bit Biz, and Getting to the Good Bits - Mitchell argues that the crucial issue before us is not one of putting in place the digital plumbing of telecommunications links and associated electronic appliances, nor even of producing content for electronic delivery, but rather one of creating electronically mediated environments for the kinds of lives that we want to lead.
series	other
last changed	2003/04/23 15:14

_id	f02b
authors	Mitchell, W.
year	1999
title	E-topia: urban life, Jim –but not as we know it
source	MIT press
summary	The global digital network is not just a delivery system for email, Web pages, and digital television. It is a whole new urban infrastructure--one that will change the forms of our cities as dramatically as railroads, highways, electric power supply, and telephone networks did in the past. In this lucid, invigorating book, William J. Mitchell examines this new infrastructure and its implications for our future daily lives. Picking up where his best-selling City of Bits left off, Mitchell argues that we must extend the definitions of architecture and urban design to encompass virtual places as well as physical ones, and interconnection by means of telecommunication links as well as by pedestrian circulation and mechanized transportation systems. He proposes strategies for the creation of cities that not only will be sustainable but will make economic, social, and cultural sense in an electronically interconnected and global world. The new settlement patterns of the twenty-first century will be characterized by live/work dwellings, 24-hour pedestrian-scale neighborhoods rich in social relationships, and vigorous local community life, complemented by far-flung configurations of electronic meeting places and decentralized production, marketing, and distribution systems. Neither digiphile nor digiphobe, Mitchell advocates the creation of e-topias--cities that work smarter, not harder.
series	other
last changed	2003/04/23 15:14

_id	fed9
authors	Mitchell, W.J.
year	1999
title	Replacing place
source	Peter Lunfeld (ed.), The Digital Dialexc: New Essays on New Media, 112-128
summary	The Digital Dialectic is an interdisciplinary jam session about our visual and intellectual cultures as the computer recodes technologies, media, and art forms. Unlike purely academic texts on new media, the book includes contributions by scholars, artists, and entrepreneurs, who combine theoretical investigations with hands-on analysis of the possibilities (and limitations) of new technology. The key concept is the digital dialectic: a method to ground the insights of theory in the constraints of practice. The essays move beyond journalistic reportage and hype into serious but accessible discussion of new technologies, new media, and new cultural forms.
series	other
last changed	2003/04/23 15:14

_id	e91f
authors	Mitchell, W.J., Liggett, R.S. and Tan, M.
year	1990
title	Top-Down Knowledge-Based Design
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 137-148
summary	Traditional computer drafting systems and three- dimensional geometric modeling systems work in bottom-up fashion. They provide a range of graphic primitives, such as vectors, arcs, and splines, together with operators for inserting, deleting, combining, and transforming instances of these. Thus they are conceptually very similar to word processors, with the difference that they operate on two- dimensional or three-dimensional patterns of graphic primitives rather than one-dimensional strings of characters. This sort of system is effective for input and editing of drawings or models that represent existing designs, but provides little more help than a pencil when you want to construct from scratch a drawing of some complex object such as a human figure, an automobile, or a classical column: you must depend on your own knowledge of what the pieces are and how to shape them and put them together. If you already know how to draw something then a computer drafting system will help you to do so efficiently, but if you do not know how to begin, or how to develop and refine the drawing, then the efficiency that you gain is of little practical consequence. And accelerated performance, flashier color graphics, or futuristic three-dimensional modes of interaction will not help with this problem at all. By contrast, experienced expert graphic artists and designers usually work in top-down fashion-beginning with a very schematic sketch of the whole object, then refining this, in step-by-step fashion, till the requisite level of precision and completeness is reached. For example, a figure drawing might begin as a "stick figure" schema showing lengths and angles of limbs, then be developed to show the general blocking of masses, and finally be resolved down to the finest details of contour and surface. Similarly, an architectural drawing might begin as a parti showing just a skeleton of construction lines, then be developed into a single-line floor plan, then a plan showing accurate wall thicknesses and openings, and finally a fully developed and detailed drawing.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	a395
authors	Mitchell, W.J., Liggett, R.S., Pollalis, S.N. and Tan, M.
year	1991
title	Integrating Shape Grammars and Design Analysis
source	Computer Aided Architectural Design Futures: Education, Research, Applications [CAAD Futures ‘91 Conference Proceedings / ISBN 3-528-08821-4] Zürich (Switzerland), July 1991, pp. 17-32
summary	This paper demonstrates how design problems can be solved by combining a shape grammar to generate alternatives with standard engineering analysis procedures to test them. It provides a detailed worked example, and discusses practical applications of the idea in design teaching.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	eae1
authors	Mitchell, William J.
year	1991
title	Functional Grammars: An Introduction
doi	https://doi.org/10.52842/conf.acadia.1991.167
source	Reality and Virtual Reality [ACADIA Conference Proceedings / ISBN 1-880250-00-4] Los Angeles (California - USA) October 1991, pp. 167-176
summary	A practical design must be realizable using available materials and fabrication processes, and it must meet specified functional requirements; these are necessary (though not always sufficient) conditions for solution of a design problem. It is possible to write shape grammars that produce designs which satisfy these two conditions.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	8403
authors	Mitchell, William J., Liggett, Robin S. and Tan, Milton
year	1988
title	The Topdown System and its use in Teaching - An Exploration of Structured, Knowledge-Based Design
doi	https://doi.org/10.52842/conf.acadia.1988.251
source	Computing in Design Education [ACADIA Conference Proceedings] Ann Arbor (Michigan / USA) 28-30 October 1988, pp. 251-262
summary	The Topdown System is a shell for use in developing simple (but we believe non-trivial) knowledge-based CAD systems. It provides a data structure, graphics capabilities, a sophisticated user interface, and programming tools for rapid construction of knowledge bases. Implementation is for Macintosh, Macintosh II, IBM PC/AT, PS12, and Sun workstations. The basic idea is that of top-down design - beginning with a very abstract representation, and elaborating that, in step-by-step fashion, into a complete and detailed representation. The basic operations are real-time parametric variation of designs (using the mouse and slide bar) and substitution of objects. Essentially, then, a knowledge-base in Topdown implements a kind of parametric shape grammar. The main applications of Topdown are in introductory teaching of CAD, and (since it provides a very quick and easy way for a user to develop detailed geometric models) to provide a uniform front-end for a variety of different applications. The shell, and some example knowledge-bases, are publicly available. This paper discusses the principles of the Topdown Shell, the implementation of knowledge bases within it, and a variety of practical design applications.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	e016
authors	Mitchell, William J.
year	1975
title	The Theoretical Foundation of Computer- Aided Architectural Design
source	Environment and Planning B December, 1975. vol. 2: pp. 127-150 : ill. includes bibliography.
summary	This paper tries to elucidate some of the basic unifying theoretical concepts which form the foundation of much of the work that has been done in computer-aided architectural design, to relate these concepts to their historical predecessors, and to use the theoretical framework that is developed to make some comparison between computer-aided and manual design methods. The question of how design problems are defined, how potential solutions are represented, how they are generated, and how they are evaluated, are taken in turn. A distinction is drawn between well-defined and ill-defined design problems. The issue of originality and style are considered, and the division of tasks between human designers and machine is discussed
keywords	theory, CAD, design, problem solving, methods, architecture, representation
series	CADline
email
last changed	2003/06/02 13:58

_id	0d3a
authors	Mitchell, William J.
year	1977
title	Computer-Aided Architectural Design
source	573 p. : ill. New York: Mason Charter Pub. Inc., 1977. includes bibliography: p. 515-559 and index
summary	This book is intended to provide a comprehensive introduction to the fundamentals of computer-aided architectural design for the students of architecture, the architect in practice, and the computer professional who is interested in learning about this application area
keywords	CAD, architecture, education
series	CADline
email
last changed	2003/06/02 13:58

_id	3824
authors	Mitchell, William J.
year	1989
title	A New Agenda for Computer-Aided Architectural Design
doi	https://doi.org/10.52842/conf.acadia.1989.027
source	New Ideas and Directions for the 1990’s [ACADIA Conference Proceedings] Gainsville (Florida - USA) 27-29 October 1989, pp. 27-43
summary	The essential theoretical foundations for today's practical computer-aided design systems were laid more than two decades ago. They have served us well, but they are now sorely in need of revision. This paper suggests some directions that this revision might take. In particular, I focus on the roles of ambiguity and discontinuity in shape interpretation, instability in rules for carrying out shape computations, and nonmonotonicity in critical reasoning. I suggest that the challenge before us is to build a new generation of CAD systems that respond in sophisticated ways to these issues.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	cdd3
authors	Mitchell, William J.
year	1990
title	A New Agenda For Computer-Aided Design
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 1-16
summary	Design is the computation of shape information that is needed to guide fabrication or construction of an artifact. This information normally specifies artifact topology (connections of vertices, edges, surfaces, and closed volumes), dimensions, angles, and tolerances on dimensions and angles. There may also be associations of symbols with subshapes to specify material and other such properties. The process of design takes different forms in different contexts, but the most usual computational operations are transformations (unary operations) and combinations (binary operations) of shapes in a two-dimensional drawing or a three-dimensional geometric model. An initial vocabulary of shapes, together with a repertoire of shape transformation and combination operators., establishes the shape algebra within which the computation takes place. The computation terminates successfully when it can be shown that certain predicates are satisfied by a shape produced by recursively applying the transformation and combination operators to the initial vocabulary. These predicates are usually stated in symbolic (verbal or numerical) form. Thus determination of whether a predicate is satisfied usually involves producing a numerical or verbal interpretation of a drawing, then deriving inferences from this interpretation by applying rules or formulae.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	435a
authors	Mitchell, William J.
year	1990
title	Afterword: The Design Studio of The Future
source	The Electronic Design Studio: Architectural Knowledge and Media in the Computer Era [CAAD Futures ‘89 Conference Proceedings / ISBN 0-262-13254-0] Cambridge (Massachusetts / USA), 1989, pp. 479-494
summary	Things began to change in the mid-1940s, though architects hardly noticed. Scientists and engineers started to speculate that the new electronic technologies which had emerged in the wartime years would profoundly change the character of intellectual work. Vannevar Bush (1945) imagined a device called the Memex, which would function as a personal information server. By the 1950s computers were becoming a commercial reality, and in 1956 Fortune magazine published a remarkably prescient depiction of a machine that we can now recognize as a computer-aided design workstation complete with graphic input devices and a multi-window display showing different views of a three-dimensional object. These wonderful machines were never built, much less put to any practical use, but they established a powerful idea.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	a07c
authors	Mitchell, William J.
year	1992
title	The Uses of Inconsistency in Design
source	New York: John Wiley & Sons, 1992. pp. 1-13 : ill. includes bibliography.--- This article is the introduction chapter to the book
summary	In this paper two of the central dogmas underlying most current theories of design evaluation are challenged: that the representations used by a designer must be well formed, and that a designer must have a consistent belief framework within which to make judgements about design proposals. The crucial roles in design of ambiguous and inconsistent representations and provisional beliefs are examined, and a model of design exploration based on nonmonotonic modes of reasoning is sketched
keywords	reasoning, evaluation, prediction, design process, architecture
series	CADline
email
last changed	2003/06/02 10:24

_id	f766
authors	Mitchell, William J.
year	1995
title	CAD as a Social Process
source	Sixth International Conference on Computer-Aided Architectural Design Futures [ISBN 9971-62-423-0] Singapore, 24-26 September 1995, pp. 7-9
summary	We can now look back over more than three decades of CAD research, software development, and deployment in practice. In that time, several guiding paradigms have emerged - then have eventually been superseded(or, at least, extended and augmented by new ones. In this paper I briefly glance backward at successive paradigms, consider what each has contributed to our understanding of the subject, then go on to consider the latest - CAD as a network-supported, social process.
keywords	Geographically-Distributed Computing, Virtual Design Studios
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	e405
authors	Mitchell, William J.
year	1997
title	City of Bits
doi	https://doi.org/10.52842/conf.caadria.1997.001
source	CAADRIA ‘97 [Proceedings of the Second Conference on Computer Aided Architectural Design Research in Asia / ISBN 957-575-057-8] Taiwan 17-19 April 1997, pp. 1-2
summary	My name is wjm@mit.edu (though I have many aliases), and I am an flâneur. I hang out on the network. The keyboard is my café. Each morning I turn to some nearby machine - my modest personal computer at home, a more powerful workstation in one of the offices or laboratories that I frequent, or a laptop in a hotel room-to log into electronic mail. I click on an icon to open an "inhox" filled with messages from round the world-replies to technical questions, queries for me to answer, drafts of papers, submissions of student work, appointments, travel and meeting arrangements. hits of business, greetings. reminders, chitchat, gossip, cornplaints, tips, jokes, flirtation. I type replies immediately, then drop them into an "otubox," from which they are forwarded automatically to the appropriate destinations. (Note the scare quotes. "Box" is a very loose metaphor. and I will come back to that later.) If I have time before I finish gulping my coffee. I also check the wire services and a couple of specialized news services to which I subscribe, then glance at the latest weather report. This ritual is repeated whenever I have a spare moment during the day.
series	CAADRIA
email
last changed	2022/06/07 07:58

_id	ddssar9623
id	ddssar9623
authors	Mitossi, V. and Koutamanis, A.
year	1996
title	Parametric design of stairs
source	Timmermans, Harry (Ed.), Third Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Spa, Belgium), August 18-21, 1996
summary	Stairs represent one of the oldest and most intricate design problems in architecture. Aesthetics, pedestrian circulation, construction and safety combine to create a complex network of factors. Despite the essentially parametric nature of stairs, designers have been eager to adopt and apply simplistic standardization schemes, often unrelated to safety issues. Moreover, while there are several computerized systems for the automated design of stairs, there has been little if any interest in the computer-based analysis of stair designs. The objective of our research has been to develop a transparent and flexible computer system for the design and analysis of stairs. The system employs constraint propagation networks for the calculation of stair dimensions in generation and for the correlation of floor levels to stairs and their dimensions in analysis. Computerization also allows us to re-examine and refine the norms underlying stair design. We propose that our understanding of stair design can be improved by the analysis of proprioceptive sizes in ascent and descent. Simulation of these sizes with virtual robots combines accurate measurement with visual evaluation. This combination facilitates the effortless and direct integration of advanced technologies and new methods in architectural design.
series	DDSS
last changed	2003/08/07 16:36

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