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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Reformat results as: short short into frame detailed detailed into frame

_id	c37f
authors	Resnick, M., Bruckman, A. and Martin, F.
year	1996
title	Pianos Not Stereos: Creating Computational Construction Kits
source	Interactions, 3 (6)
summary	The stereo has many attractions: it is easier to play and it provides immediate access to a wide range of music. But "ease of use" should not be the only criterion. Playing the piano can be a much richer experience. By learning to play the piano, you can become a creator (not just a consumer) of music, expressing yourself musically in ever-more complex ways. As a result, you can develop a much deeper relationship with (and deeper understanding of) music. So too with computers. In the field of educational technology, there has been too much emphasis on the equivalent of stereos and CDs, and not enough emphasis on computational pianos. In our research group at the MIT Media Lab, we are developing a new generation of "computational construction kits" that, like pianos, enable people to express themselves in ever-more complex ways, deepening their relationships with new domains of knowledge.
series	journal paper
last changed	2003/04/23 15:50

_id	4b71
authors	Gross, M.D.
year	1996
title	Why can't CAD be more like Lego? CKB, a program for building construction kits
source	Automation in Construction 5 (4) (1996) pp. 285-300
summary	The paper describes CKB (Construction Kit Builder), a computational design environment based on defining, then working within, a system of components and rules for their placement. In construction details, the components and placement rules are standard; in less routine design tasks they are not. CKB uses a constraint-based, object oriented, system architecture to provide two levels of design support. At the higher level, designers of technical systems use CKB to specify components and rules for their positioning. At the lower level, building designers use CKB to lay out components of these systems.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	avocaad_2001_02
id	avocaad_2001_02
authors	Cheng-Yuan Lin, Yu-Tung Liu
year	2001
title	A digital Procedure of Building Construction: A practical project
source	AVOCAAD - ADDED VALUE OF COMPUTER AIDED ARCHITECTURAL DESIGN, Nys Koenraad, Provoost Tom, Verbeke Johan, Verleye Johan (Eds.), (2001) Hogeschool voor Wetenschap en Kunst - Departement Architectuur Sint-Lucas, Campus Brussel, ISBN 80-76101-05-1
summary	In earlier times in which computers have not yet been developed well, there has been some researches regarding representation using conventional media (Gombrich, 1960; Arnheim, 1970). For ancient architects, the design process was described abstractly by text (Hewitt, 1985; Cable, 1983); the process evolved from unselfconscious to conscious ways (Alexander, 1964). Till the appearance of 2D drawings, these drawings could only express abstract visual thinking and visually conceptualized vocabulary (Goldschmidt, 1999). Then with the massive use of physical models in the Renaissance, the form and space of architecture was given better precision (Millon, 1994). Researches continued their attempts to identify the nature of different design tools (Eastman and Fereshe, 1994). Simon (1981) figured out that human increasingly relies on other specialists, computational agents, and materials referred to augment their cognitive abilities. This discourse was verified by recent research on conception of design and the expression using digital technologies (McCullough, 1996; Perez-Gomez and Pelletier, 1997). While other design tools did not change as much as representation (Panofsky, 1991; Koch, 1997), the involvement of computers in conventional architecture design arouses a new design thinking of digital architecture (Liu, 1996; Krawczyk, 1997; Murray, 1997; Wertheim, 1999). The notion of the link between ideas and media is emphasized throughout various fields, such as architectural education (Radford, 2000), Internet, and restoration of historical architecture (Potier et al., 2000). Information technology is also an important tool for civil engineering projects (Choi and Ibbs, 1989). Compared with conventional design media, computers avoid some errors in the process (Zaera, 1997). However, most of the application of computers to construction is restricted to simulations in building process (Halpin, 1990). It is worth studying how to employ computer technology meaningfully to bring significant changes to concept stage during the process of building construction (Madazo, 2000; Dave, 2000) and communication (Haymaker, 2000).In architectural design, concept design was achieved through drawings and models (Mitchell, 1997), while the working drawings and even shop drawings were brewed and communicated through drawings only. However, the most effective method of shaping building elements is to build models by computer (Madrazo, 1999). With the trend of 3D visualization (Johnson and Clayton, 1998) and the difference of designing between the physical environment and virtual environment (Maher et al. 2000), we intend to study the possibilities of using digital models, in addition to drawings, as a critical media in the conceptual stage of building construction process in the near future (just as the critical role that physical models played in early design process in the Renaissance). This research is combined with two practical building projects, following the progress of construction by using digital models and animations to simulate the structural layouts of the projects. We also tried to solve the complicated and even conflicting problems in the detail and piping design process through an easily accessible and precise interface. An attempt was made to delineate the hierarchy of the elements in a single structural and constructional system, and the corresponding relations among the systems. Since building construction is often complicated and even conflicting, precision needed to complete the projects can not be based merely on 2D drawings with some imagination. The purpose of this paper is to describe all the related elements according to precision and correctness, to discuss every possibility of different thinking in design of electric-mechanical engineering, to receive feedback from the construction projects in the real world, and to compare the digital models with conventional drawings.Through the application of this research, the subtle relations between the conventional drawings and digital models can be used in the area of building construction. Moreover, a theoretical model and standard process is proposed by using conventional drawings, digital models and physical buildings. By introducing the intervention of digital media in design process of working drawings and shop drawings, there is an opportune chance to use the digital media as a prominent design tool. This study extends the use of digital model and animation from design process to construction process. However, the entire construction process involves various details and exceptions, which are not discussed in this paper. These limitations should be explored in future studies.
series	AVOCAAD
email
last changed	2005/09/09 10:48

_id	ddssar9615
id	ddssar9615
authors	Hill, S.M., Sinclair, B.S., Sandall, D., Butt, T.S., Sampson, N. and Blackie, N.
year	1996
title	A Computer-Facilitated Approach for Development, Visualization and Testing of Functional Programming Information
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	Functional programming processes for complex architectural projects have traditionally been hampered by the static nature of available tools and technologies. Connection with user groups have likewise been disadvantaged through the employment of sender-oriented communications models that limit feedback and interaction. In addition, diminishing project budgets place increasing pressure on clients and consult-ants to develop more effective and efficient methods for the design and construction of buildings. This paper discusses a case-study involving the design of a highly complex medical laboratory wherein infoc mation technologies were used to facilitate the development, visualization and testing of functional pro-gramming information. The objectives for the project involved creating an environment where users and clients actively participate in consideration of programming directions and implications in a manner that would not only increase confidence that the program would meet user requirements now and in the future, but also would reduce redundant and or inefficient space within the overall building programme. In the approach used the distinction between programming and design is diminished to improve communication of desires and design responses. The findings of the study indicate that the computer-facilitated approach met the objectives of the project and that the methods developed hold promise for application across a broader range of project types.
series	DDSS
last changed	2003/08/07 16:36

_id	2dbc
authors	Achten, Henri
year	1996
title	Teaching Advanced Architectural Issues Through Principles of CAAD
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 7-16
doi	https://doi.org/10.52842/conf.ecaade.1996.007
summary	The paper discusses the differences between teaching CAAD by using standard software ("off-the-shelf"-software) and teaching the principles of CAAD ("principles-teaching"). The paper distinguishes four kinds of application for design systems in education: social systems, professional systems, educational systems, and innovative systems. The paper furthermore proposes to distinguish between computational issues and architectural issues relative to design systems. It appears that there is not a principled distinction between software-teaching and principles-teaching when it comes to computational issues of design systems. However, when the architectural content of CAAD systems is concerned, then principles of CAAD systems seem to be more appropriate for teaching. The paper presents work on generic representations as a specific case. Generic representations can be used to teach one particular kind of architectural content of design systems. The paper ends with conclusions.
series	eCAADe
email
more	http://www.ds.arch.tue.nl/
last changed	2022/06/07 07:54

_id	0ec9
authors	Agranovich-Ponomareva. E., Litvinova, A. And Mickich, A.
year	1996
title	Architectural Computing in School and Real Designing
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 25-28
doi	https://doi.org/10.52842/conf.ecaade.1996.025
summary	The existing system of architectural education ( including computer ) as has shown practice has appeared not absolutly perfect. It not capable to dynamic changes, active introduction of a new engineering and computer technologies, to realization about of the inquiries of a modern time. It suggest of a way of search of new models of computer training. The computer education is represented by us as certain a universal system, which permits to solve the problem of arcitectural education at a higher level. The opportunities of computers and computer technologies at such approach are used as means of increase of efficiency teaching and training. The orientation goes on final result: a opportunity to generate of the creative decisions by learnees, based on attraction of received knowledge and use for their realization of arsenal of practical skills and skills. The system represents not only certain set of experiences elements, necessary and final result sufficient for achievement, but also quite certain interrelation between them. It means, that the knowledge from a initial rate " The Introduction in computer training" must be secured and transformed for utilization in special rates and through them- in practice. The functional nucleus of the software package of such universal system is under construction as opened, apparatus an independent system. A central part of a system is a database, the structure of which is uniform for all other modules and side of enclosures. The conceptual model of a system is under construction on principles structure idea, visualization, multimedia. The listed principles are realized in model so that to encourage the user to independent creative work.
series	eCAADe
last changed	2022/06/07 07:54

_id	c872
authors	Beliveau, Y.J., Fithian, J.E. and Deisenroth, M.P.
year	1996
title	Autonomous vehicle navigation with real-time 3D laser based positioning for construction
source	Automation in Construction 5 (4) (1996) pp. 261-272
summary	Autonomous Guided Vehicles (AGVs) are a way of life in manufacturing where navigation can be done in a structured environment. Construction is an unstructured environment and requires a different type of navigation system to deal with three dimensional control and rough terrain. This paper provides a review of navigation systems that utilize dead-reckoning in conjunction with absolute referencing systems such as beacon-based systems, and vision and mapping based system. The use of a real-time laser based technology is demonstrated as a new form of navigation. This, technology does not rely on dead reckoning. The paper outlines the issues and strategies in guiding an autonomous vehicle utilizing only the laser-based positioning system. Algorithms were developed to provide real-time control of the AGV. The laser based positioning system is unique in that it provides three dimensional position data with five updates per second. No other system can provide this level of performance. This allows for control of end effectors and autonomous vehicles in complex and unstructured three dimensional environments. The use of this new type of navigation makes possible the automation of large complex assemblies in rough terrain such as construction.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	82ff
authors	Bhavnani, S.K., Flemming, U., Forsythe, D.E., Garrett, J.H., Shaw, D.S. and Tsai, A.
year	1996
title	CAD usage in an architectural office: from observations to active assistance
source	Automation in Construction 5 (3) (1996) pp. 243-255
summary	The functionality and resources provided by CAD systems have been increasing rapidly, but productivity growth expected from their use has been difficult to achieve. Although many surveys describe this productivity puzzle, few studies have been conducted on actual CAD users to understand its causes. In an effort to arrive at such an understanding, the first author visited a federal architectural office and observed CAD users in their natural setting. This paper describes preliminary results obtained from the study, which used ethnographic techniques developed by cultural anthropologists. The study revealed that users had leveled-off in their learning and experimentation and were using the CAD system in suboptimal ways. By asking why users were not using many resources available to them to improve performance, the observer uncovered issues of communication and management that needed to be addressed. Based on this understanding, the authors provide explicit recommendations to CAD users and vendors. In addition, they hypothesize that users might benefit from a system that provides active assistance, that is, intervenes spontaneously with advice, assistance, and relevant information while the user interacts with the CAD system. They conclude with some issues revealed by the study that should be considered when developing such active assistance.
series	journal paper
email
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	b4c4
authors	Carrara, G., Fioravanti, A. and Novembri, G.
year	2000
title	A framework for an Architectural Collaborative Design
source	Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 57-60
doi	https://doi.org/10.52842/conf.ecaade.2000.057
summary	The building industry involves a larger number of disciplines, operators and professionals than other industrial processes. Its peculiarity is that the products (building objects) have a number of parts (building elements) that does not differ much from the number of classes into which building objects can be conceptually subdivided. Another important characteristic is that the building industry produces unique products (de Vries and van Zutphen, 1992). This is not an isolated situation but indeed one that is spreading also in other industrial fields. For example, production niches have proved successful in the automotive and computer industries (Carrara, Fioravanti, & Novembri, 1989). Building design is a complex multi-disciplinary process, which demands a high degree of co-ordination and co-operation among separate teams, each having its own specific knowledge and its own set of specific design tools. Establishing an environment for design tool integration is a prerequisite for network-based distributed work. It was attempted to solve the problem of efficient, user-friendly, and fast information exchange among operators by treating it simply as an exchange of data. But the failure of IGES, CGM, PHIGS confirms that data have different meanings and importance in different contexts. The STandard for Exchange of Product data, ISO 10303 Part 106 BCCM, relating to AEC field (Wix, 1997), seems to be too complex to be applied to professional studios. Moreover its structure is too deep and the conceptual classifications based on it do not allow multi-inheritance (Ekholm, 1996). From now on we shall adopt the BCCM semantic that defines the actor as "a functional participant in building construction"; and we shall define designer as "every member of the class formed by designers" (architects, engineers, town-planners, construction managers, etc.).
keywords	Architectural Design Process, Collaborative Design, Knowledge Engineering, Dynamic Object Oriented Programming
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:55

_id	b81d
authors	Davies, C. and Harrison, J.
year	1996
title	Osmose: Towards Broadening the Aesthetics of Virtual Reality
source	ACM Computer Graphics: Virtual Reality Volume 30, Number 4
summary	Osmose is an immersive virtual environment, produced by Softimage in 1994/95. One of the primary goals of Osmose was to push the expressive capabilities of existing 3D tools, to demonstrate that an alternative aesthetic and interactive sensibility is possible for real-time, interactive, 3D computer graphics. Osmose was created under the direction of Char Davies, the Director of Visual Research at Softimage. A former painter, as well as a creator of 3D computer graphic stills, Davies has a particular artistic vision which has driven the project. Davies has been striving for years to represent space as a luminous enveloping medium. This has led her from painting to 3D computer graphics, and finally into creating immersive virtual spaces. One of Davies' intentions for Osmose was to create a space that is "psychically innovating," one in which, to quote Bachelard, participants do not change "place," but change their own nature. Osmose was therefore designed to explore the potential of immersive virtual space to allow participants to shed their habitual ways of looking at (and behaving in) the world. By doing this, we hoped they would then emerge from the virtual world to experience the real world in a fresh way, reawakening a fundamental sense of their own "being-in-the-world." We hoped that this could be accomplished through the visual, aural and interactive aesthetic of the work.
series	journal paper
last changed	2003/04/23 15:50

_id	20ff
id	20ff
authors	Derix, Christian
year	2004
title	Building a Synthetic Cognizer
source	Design Computation Cognition conference 2004, MIT
summary	Understanding ‘space’ as a structured and dynamic system can provide us with insight into the central concept in the architectural discourse that so far has proven to withstand theoretical framing (McLuhan 1964). The basis for this theoretical assumption is that space is not a void left by solid matter but instead an emergent quality of action and interaction between individuals and groups with a physical environment (Hillier 1996). In this way it can be described as a parallel distributed system, a self-organising entity. Extrapolating from Luhmann’s theory of social systems (Luhmann 1984), a spatial system is autonomous from its progenitors, people, but remains intangible to a human observer due to its abstract nature and therefore has to be analysed by computed entities, synthetic cognisers, with the capacity to perceive. This poster shows an attempt to use another complex system, a distributed connected algorithm based on Kohonen’s self-organising feature maps – SOM (Kohonen 1997), as a “perceptual aid” for creating geometric mappings of these spatial systems that will shed light on our understanding of space by not representing space through our usual mechanics but by constructing artificial spatial cognisers with abilities to make spatial representations of their own. This allows us to be shown novel representations that can help us to see new differences and similarities in spatial configurations.
keywords	architectural design, neural networks, cognition, representation
series	other
type	poster
email
more	http://www.springer.com/computer/ai/book/978-1-4020-2392-7
last changed	2012/09/17 21:13

_id	819d
authors	Eiteljorg, H.
year	1988
title	Computing Assisted Drafting and Design: new technologies for old problems
source	Center for the study of architecture, Bryn Mawr, Pennsylvania
summary	In past issues of the Newsletter, George Tressel and I have written about virtual reality and renderings. We have each discussed particular problems with the technology, and both of us mentioned how compelling computer visualizations can be. In my article ("Virtual Reality and Rendering," February, 1995, Vol. 7, no. 4), I indicated my concerns about the quality of the scholarship and the level of detail used in making renderings or virtual worlds. Mr. Tressel (in "Visualizing the Ancient World," November, 1996, Vol. IX, no. 3) wrote about the need to distinguish between real and hypothetical parts of a visualization, the need to differentiate materials, and the difficulties involved in creating the visualizations (some of which were included in the Newsletter in black-and-white and on the Web in color). I am returning to this topic now, in part because the quality of the images available to us is improving so fast and in part because it seems now that neither Mr. Tressel nor I treated all the issues raised by the use of high-quality visualizations. The quality may be illustrated by new images of the older propylon that were created by Mr. Tressel (Figs. 1 - 3); these images are significantly more realistic than the earlier ones, but they do not represent the ultimate in quality, since they were created on a personal computer.
series	other
last changed	2003/04/23 15:50

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

_id	ddssup9608
id	ddssup9608
authors	Gupta, M.K., Groves M. and Moran, J.D.
year	1996
title	An EMIC approach to design: Methodology for creating supportive environments for young children
source	Timmermans, Harry (Ed.), Third Design and Decision Support Systems in Architecture and Urban Planning - Part two: Urban Planning Proceedings (Spa, Belgium), August 18-21, 1996
summary	The responsibility of the designer is to understand the unique perspective of the users, in order to create functional and efficient environments. The task of creating supportive environments often becomes more difficult when there is discrepancy between the perspective of the designer and that of the user, which is the case when designing spaces for children. The interaction of children with their environment has been identified as the basis of their development Most of the previous research has focused on the perspectives that adults have of spaces for children (etic), rather than an understanding of the child's view as the primary user of the playspace (emic). Children's perceptions are influenced by their physical and cognitive perspectives thus posing a unique challenge for designers. The objective of this study was to learn about the perception and perspective of four-and five-year-olds of their favorite playspaces. The children needed to identify their favorite spaces and also be able to verbalize the activities and meanings associated with these spaces. To avoid adult bias at the onset, the idea of utilizing a Polaroid Captiva camera was formulated, facilitating an extremely short latency period between the child taking the pictures and the opportunity to talk about their favorite playspace. The process was extremely successful, and provides first hand insight into children's perception of their built environment Photographs taken by the young children include many spaces not designed for play. The emerging themes are a source of invaluable information for designers and planners for making informed design decisions and for creating supportive environments.
series	DDSS
email
last changed	2003/08/07 16:36

_id	18bd
authors	Herkommer, F. and Bley, B.
year	1996
title	CAD/CAM for the prefabrication of brickwork
source	Automation in Construction 4 (4) (1996) pp. 321-329
summary	Applying automated methods to the building of brickwork houses means savings in both time and cost. In principle, two different methods compete with each other: "Robots on site" and "factory prefabrication of wall elements". However, prefabrication has already proved its advantages with a number of different manufacturers, where robots on site have not yet succeeded beyond the prototype stage. This article describes a new flexible computer program, for the planning and manufacturing of wall elements, incorporating CAD interface possibilities. The program developed is a completely object orientated Microsoft Windows application which adopts a modular concept, thereby allowing adaptation or inclusion of the modules to other applications. The existence of such a program is regarded as a very important requirement for masonry automation.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	dba1
authors	Hirschberg, Urs and Wenz, Florian
year	2000
title	Phase(x) - memetic engineering for architecture
source	Automation in Construction 9 (4) (2000) pp. 387-392
summary	Phase(x) was a successful teaching experiment we made in our entry level CAAD course in the Wintersemester 1996/1997. The course was entirely organized by means of a central database that managed all the students' works through different learning phases. This set-up allowed that the results of one phase and one author be taken as the starting point for the work in the next phase by a different author. As students could choose which model they wanted to work with, the whole of Phase(x) could be viewed as an organism where, as in a genetic system, only the "fittest" works survived. While some discussion of the technical set-up is necessary as a background, the main topics addressed in this paper will be the structuring in phases of the course, the experiences we had with collective authorship, and the observations we made about the memes2 that developed and spread in the students' works. Finally we'll draw some conclusions in how far Phase(x) is relevant also in a larger context, which is not limited to teaching CAAD. Since this paper was first published in 1997, we have continued to explore the issues described here in various projects3 together with a growing number of other interested institutions worldwide. While leaving the paper essentially in its original form, we added a section at the end, in which we outline some of these recent developments.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	f748
authors	Hitchcock, Robert John
year	1996
title	Improving life-cycle information management through documentation of project objectives and design rationale
source	University of California, Berkeley, Department of Civil Engineering
summary	Fragmentation is a defining characteristic of the US building industry that has evolved with increased specialization in building disciplines, and is exacerbated by the present industry business model. While the industry has agreed that productivity and product quality can be dramatically improved by information integration and communication, it has not agreed what information is most important to share to achieve these improvements. Traditional documentation in drawings and specifications captures only the final product of building design decisions. Yet, reported building failures indicate that a lack of understanding between project participants regarding their diverse objectives may be a key factor in failure. This deficiency leads to an inadequate understanding of the rationale behind the myriad design decisions that must work in concert to achieve a global set of project objectives. This information is routinely lost under current information management practices as the building moves through its life cycle. The dissertation develops an innovative information framework intended to effectively structure and manage building life-cycle information. The framework contains a product model that represents the details of a building design that are traditionally documented for sharing between project phases. Two additional elements are integrated with this product model to document key information that is currently lost. Explicit Global Objectives define the overall purpose of a building project by explicitly identifying its intended performance and the criteria for evaluating their achievement. Design Rationale Records capture the associations between individual details of the product model and the objectives that these details are meant to achieve. This information is linked within the framework so that it can be archived, reviewed, and updated in an integrated fashion as a building project moves through time. Example applications of the framework are given. Documenting this key information has benefit across the building life cycle. Participants can more clearly specify project objectives. Multi-criteria evaluation of alternative design solutions and construction methods can be better supported, and the resulting decisions better documented for sharing amongst participants. Comprehensive commissioning can be more cost-effectively performed. During operations, evaluation of the actual performance of a building and detection of maintenance problems can be enhanced.
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	fb63
id	fb63
authors	Jabi, Wassim
year	1996
title	An Outline of the Requirements for a Computer-Supported Collaborative Design System
source	Open House International, vol 21, no 1, March 1996
summary	Computer-Aided Architectural Design (CAAD) systems have adequately satisfied several needs so far. They have dramatically improved the accuracy and consistency of working drawings, enabled designers to visualize their design ideas in three-dimensions, allowed the analysis of designs through data exchange and integrated databases, and even allowed the designers to evaluate (and in some cases generate) designs based on comparisons to previous cases and/or the formalization of grammars. Yet, there is a consensus that CAAD systems have not yet achieved their full potential. First, most systems employ a single-user approach to solving architectural problems which fails to grapple with the fact that most design work is done through teamwork. Second, current systems still can not support early design stages which involve client briefing, data collection, building program formulation, and schematic design generation. This paper seeks to study remedies to both of the afore-mentioned limitations through focusing on the fundamental dialectic and collaborative nature of what is called designing: a concerned social activity that proceeds by creating architectural elements to address a set of requirements and their re-thinking as a result of architectural conjecture. To investigate this relationship, it is proposed to build a computer-supported collaborative design environment using the tools of conceptual modeling, object-oriented algorithms, and distributed agents. Based on findings regarding the role of artifacts in collaborative design and a literature survey, this paper concludes with an outline of the requirements for the above system.
series	journal paper
type	normal paper
email
last changed	2008/06/12 16:34

_id	2f3c
authors	Jabi, Wassim
year	1996
title	An Outline of the Requirements for a Computer-Supported Collaborative Design System
source	Open House International, vol. 21 no 1, March 1996, pp. 22-30
summary	Computer-Aided Architectural Design (CAAD) systems have adequately satisfied several needs so far. They have dramatically improved the accuracy and consistency of working drawings, enabled designers to visualize their design ideas in three-dimensions, allowed the analysis of designs through data exchange and integrated databases, and even allowed the designers to evaluate (and in some cases generate) designs based on comparisons to previous cases and/or the formalization of grammars. Yet, there is a consensus that CAAD systems have not yet achieved their full potential. First, most systems employ a single-user approach to solving architectural problems which fails to grapple with the fact that most design work is done through teamwork. Second, current systems still can not support early design stages which involve client briefing, data collection, building program formulation, and schematic design generation. This paper seeks to study remedies to both of the afore-mentioned limitations through focusing on the fundamental dialectic and collaborative nature of what is called designing: a concerned social activity that proceeds by creating architectural elements to address a set of requirements and their re-thinking as a result of architectural conjecture. To investigate this relationship, it is proposed to build a computer-supported collaborative design environment using the tools of conceptual modeling, object-oriented algorithms, and distributed agents. Based on findings regarding the role of artifacts in collaborative design and a literature survey, this paper concludes with an outline of the requirements for the above system.
keywords	Computer Supported Collaborative Design
series	other
email
last changed	2002/03/05 19:54

_id	b6a7
authors	Jensen, K.
year	1996
title	Coloured Petri Nets: Basic Concepts
source	2nd ed., Springer Verlag, Berlin
summary	This book presents a coherent description of the theoretical and practical aspects of Coloured Petri Nets (CP-nets or CPN). It shows how CP-nets have been developed - from being a promising theoretical model to being a full-fledged language for the design, specification, simulation, validation and implementation of large software systems (and other systems in which human beings and/or computers communicate by means of some more or less formal rules). The book contains the formal definition of CP-nets and the mathematical theory behind their analysis methods. However, it has been the intention to write the book in such a way that it also becomes attractive to readers who are more interested in applications than the underlying mathematics. This means that a large part of the book is written in a style which is closer to an engineering textbook (or a users' manual) than it is to a typical textbook in theoretical computer science. The book consists of three separate volumes. The first volume defines the net model (i.e., hierarchical CP-nets) and the basic concepts (e.g., the different behavioural properties such as deadlocks, fairness and home markings). It gives a detailed presentation of many small examples and a brief overview of some industrial applications. It introduces the formal analysis methods. Finally, it contains a description of a set of CPN tools which support the practical use of CP-nets. Most of the material in this volume is application oriented. The purpose of the volume is to teach the reader how to construct CPN models and how to analyse these by means of simulation. The second volume contains a detailed presentation of the theory behind the formal analysis methods - in particular occurrence graphs with equivalence classes and place/transition invariants. It also describes how these analysis methods are supported by computer tools. Parts of this volume are rather theoretical while other parts are application oriented. The purpose of the volume is to teach the reader how to use the formal analysis methods. This will not necessarily require a deep understanding of the underlying mathematical theory (although such knowledge will of course be a help). The third volume contains a detailed description of a selection of industrial applications. The purpose is to document the most important ideas and experiences from the projects - in a way which is useful for readers who do not yet have personal experience with the construction and analysis of large CPN diagrams. Another purpose is to demonstrate the feasibility of using CP-nets and the CPN tools for such projects. Together the three volumes present the theory behind CP-nets, the supporting CPN tools and some of the practical experiences with CP-nets and the tools. In our opinion it is extremely important that these three research areas have been developed simultaneously. The three areas influence each other and none of them could be adequately developed without the other two. As an example, we think it would have been totally impossible to develop the hierarchy concepts of CP-nets without simultaneously having a solid background in the theory of CP-nets, a good idea for a tool to support the hierarchy concepts, and a thorough knowledge of the typical application areas.
series	other
last changed	2003/04/23 15:14

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