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	fc3c
authors	Hoppe, H., DeRose, T.D., DuChamp, T., Halstead, M., Jin, H., McDonald, J., Schweitzer, J. and Stuetzle, W.
year	1994
title	Piecewise smooth surface reconstruction
source	A. S. Glassner, (ed), Computer Graphics (Siggraph'94 proc.), Annual Conference Series, pp 295-302, July 1994
summary	We present a general method for automatic reconstruction of accurate, concise, piecewise smooth surface models from scattered range data. The method can be used in a variety of applications such as reverse engineering - the automatic generation of CAD models from physical objects. Novel aspects of the method are its ability to model surfaces of arbitrary topological type and to recover sharp features such as creases and corners. The method has proven to be effective, as demonstrated by a number of examples using both simulated and real data. A key ingredient in the method, and a principal contribution of this paper, is the introduction of a new class of piecewise smooth surface representations based on subdivision. These surfaces have a number of properties that make them ideal for use in surface reconstruction: they are simple to implement, they can model sharp features concisely, and they can be fit to scattered range data using an unconstrained optimization procedure.
series	other
last changed	2003/04/23 15:50

_id	ddss2004_ra-33
id	ddss2004_ra-33
authors	Diappi, L., P. Bolchim, and M. Buscema
year	2004
title	Improved Understanding of Urban Sprawl Using Neural Networks
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Recent Advances in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Kluwer Academic Publishers, ISBN: 14020-2408-8, p. 33-49
summary	It is widely accepted that the spatial pattern of settlements is a crucial factor affecting quality of life and environmental sustainability, but few recent studies have attempted to examine the phenomenon of sprawl by modelling the process rather than adopting a descriptive approach. The issue was partly addressed by models of land use and transportation which were mainly developed in the UK and US in the 1970s and 1980s, but the major advances were made in the area of modelling transportation, while very little was achieved in the area of spatial and temporal land use. Models of land use and transportation are well-established tools, based on explicit, exogenouslyformulated rules within a theoretical framework. The new approaches of artificial intelligence, and in particular, systems involving parallel processing, (Neural Networks, Cellular Automata and Multi-Agent Systems) defined by the expression “Neurocomputing”, allow problems to be approached in the reverse, bottom-up, direction by discovering rules, relationships and scenarios from a database. In this article we examine the hypothesis that territorial micro-transformations occur according to a local logic, i.e. according to use, accessibility, the presence of services and conditions of centrality, periphericity or isolation of each territorial “cell” relative to its surroundings. The prediction capabilities of different architectures of supervised Neural networks are implemented to the south Metropolitan area of Milan at two different temporal thresholds and discussed. Starting from data on land use in 1980 and 1994 and by subdividing the area into square cells on an orthogonal grid, the model produces a spatial and functional map of urbanisation in 2008. An implementation of the SOM (Self Organizing Map) processing to the Data Base allows the typologies of transformation to be identified, i.e. the classes of area which are transformed in the same way and which give rise to territorial morphologies; this is an interesting by-product of the approach.
keywords	Neural Networks, Self-Organizing Maps, Land-Use Dynamics, Supervised Networks
series	DDSS
last changed	2004/07/03 22:13

_id	f7b9
authors	Goldschmidt, G.
year	1994
title	On visual design thinking: the via kids of architecture
source	Design Studies 15 (2), pp. 158-174
summary	Designers invariably use imagery to generate new form combinations which they represent through sketching. But they also do the reverse: they sketch to generate images of forms in their minds. Common belief regards such activity as non-rational. In contrast, we assert that interactive imagery through sketching is a rational mode of reasoning, characterized by systematic exchanges between conceptual and figural arguments. Cognitive science, strongly dominated by a linguistic paradigm, has yet to recognize the paramount role of visual reasoning in many instances of problem solving; and in design tool-making, computational and otherwise, we must learn to optimize rather than bypass intuitive visuality.
series	journal paper
last changed	2003/04/23 15:14

_id	1262
authors	Alshawi, M.
year	1994
title	A run time exchange of component information between CAD and object models: A standard interface
source	The Int. Journal of Construction IT 2(2), pp. 37-52
summary	Integrated computer aided design could only occur in engineering once CAD systems could represent physical features and components rather than graphical primitives. In most dedicated CAD systems, the knowledge of a complete component exists only for the duration of each drawing command and the data stored in the database is simply a set of graphic primitives. This paper proposes an approach for real time information transfer from and to CAD systems based on a high level object representation of the design drawing. Drawing components are automatically identified and represented in an object hierarchy that reflects the 'part-of' relation between the various components including building spaces. Such hierarchies transfer an industry standard CAD system i.e. AutoCAD, into a high level object oriented system that can communicate with external applications with relative ease.
series	journal paper
last changed	2003/05/15 21:45

_id	ddssup9604
id	ddssup9604
authors	Boelen, A.J.
year	1996
title	Impact-Analysis of Urban Design Realtime impact-analysis models for urban designers
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 past five years Prof Dr Jr T.M. de Jong, professor in environmental planning and sustainability at the Technical University of Delft, has developed a theoretical foundation for the analysis of urban design on the ecological, technical, economical, cultural and political impacts of morphologic interventions on different levels of scale. From september 1994 Jr AJ. Boelen (Urban Design Scientist and Knowledge Engineer) started a research project at the same university to further explore the possibilities of these theories and to develop impact evaluation models for urban design and development with the theoretical work of De Jong as a starting point. The paper discusses the development of a design and decision support system based on these theories. For the development of this system, techniques like object-orientation, genetic algorithms and knowledge engineering are used. The user interface, the relation between the real world, paper maps and virtual maps and the presentation of design-interventions and impacts caused by the interventions are important issues. The development-process is an interactive step by step process. It consists of the making of a prototype of the system, testing the theory and hypothe-sisses the system is based on, by applying tests end adjusting the theory and hypothesisses where needed. Eventually the system must be able to act as an integrator of many different models already developed or still to be developed. The structure of the system will allow easy future expansion and adjustment to changing insights. The logic used to develop the basic theory on which this system is founded makes it possible to even introduce and maintain rather subjective aspects like quality or appraisal as impacts that can be evaluated. In a previously developed system "Momentum" this was proved to work effectively for the national level. In this project we will - amongst other things - try to prove the effectiveness of impact-evaluation for other levels of scale.
series	DDSS
email
last changed	2003/11/21 15:16

_id	7a20
id	7a20
authors	Carrara, G., Fioravanti, A.
year	2002
title	SHARED SPACE’ AND ‘PUBLIC SPACE’ DIALECTICS IN COLLABORATIVE ARCHITECTURAL DESIGN.
source	Proceedings of Collaborative Decision-Support Systems Focus Symposium, 30th July, 2002; under the auspices of InterSymp-2002, 14° International Conference on Systems Research, Informatics and Cybernetics, 2002, Baden-Baden, pg. 27-44.
summary	The present paper describes on-going research on Collaborative Design. The proposed model, the resulting system and its implementation refer mainly to architectural and building design in the modes and forms in which it is carried on in advanced design firms. The model may actually be used effectively also in other environments. The research simultaneously pursues an integrated model of the: a) structure of the networked architectural design process (operators, activities, phases and resources); b) required knowledge (distributed and functional to the operators and the process phases). The article focuses on the first aspect of the model: the relationship that exists among the various ‘actors’ in the design process (according to the STEP-ISO definition, Wix, 1997) during the various stages of its development (McKinney and Fischer, 1998). In Collaborative Design support systems this aspect touches on a number of different problems: database structure, homogeneity of the knowledge bases, the creation of knowledge bases (Galle, 1995), the representation of the IT datum (Carrara et al., 1994; Pohl and Myers, 1994; Papamichael et al., 1996; Rosenmann and Gero, 1996; Eastman et al., 1997; Eastman, 1998; Kim, et al., 1997; Kavakli, 2001). Decision-making support and the relationship between ‘private’ design space (involving the decisions of the individual design team) and the ‘shared’ design space (involving the decisions of all the design teams, Zang and Norman, 1994) are the specific topic of the present article. Decisions taken in the ‘private design space’ of the design team or ‘actor’ are closely related to the type of support that can be provided by a Collaborative Design system: automatic checks performed by activating procedures and methods, reporting of 'local' conflicts, methods and knowledge for the resolution of ‘local’ conflicts, creation of new IT objects/ building components, who the objects must refer to (the ‘owner’), 'situated' aspects (Gero and Reffat, 2001) of the IT objects/building components. Decisions taken in the ‘shared design space’ involve aspects that are typical of networked design and that are partially present in the ‘private’ design space. Cross-checking, reporting of ‘global’ conflicts to all those concerned, even those who are unaware they are concerned, methods for their resolution, the modification of data structure and interface according to the actors interacting with it and the design phase, the definition of a 'dominus' for every IT object (i.e. the decision-maker, according to the design phase and the creation of the object). All this is made possible both by the model for representing the building (Carrara and Fioravanti, 2001), and by the type of IT representation of the individual building components, using the methods and techniques of Knowledge Engineering through a structured set of Knowledge Bases, Inference Engines and Databases. The aim is to develop suitable tools for supporting integrated Process/Product design activity by means of a effective and innovative representation of building entities (technical components, constraints, methods) in order to manage and resolve conflicts generated during the design activity.
keywords	Collaborative Design, Architectural Design, Distributed Knowledge Bases, ‘Situated’ Object, Process/Product Model, Private/Shared ‘Design Space’, Conflict Reduction.
series	other
type	symposium
email
last changed	2005/03/30 16:25

_id	6279
id	6279
authors	Carrara, G.; Fioravanti, A.
year	2002
title	Private Space' and ‘Shared Space’ Dialectics in Collaborative Architectural Design
source	InterSymp 2002 - 14th International Conference on Systems Research, Informatics and Cybernetics (July 29 - August 3, 2002), pp 28-44.
summary	The present paper describes on-going research on Collaborative Design. The proposed model, the resulting system and its implementation refer mainly to architectural and building design in the modes and forms in which it is carried on in advanced design firms. The model may actually be used effectively also in other environments. The research simultaneously pursues an integrated model of the: a) structure of the networked architectural design process (operators, activities, phases and resources); b) required knowledge (distributed and functional to the operators and the process phases). The article focuses on the first aspect of the model: the relationship that exists among the various ‘actors’ in the design process (according to the STEP-ISO definition, Wix, 1997) during the various stages of its development (McKinney and Fischer, 1998). In Collaborative Design support systems this aspect touches on a number of different problems: database structure, homogeneity of the knowledge bases, the creation of knowledge bases (Galle, 1995), the representation of the IT datum (Carrara et al., 1994; Pohl and Myers, 1994; Papamichael et al., 1996; Rosenmann and Gero, 1996; Eastman et al., 1997; Eastman, 1998; Kim, et al., 1997; Kavakli, 2001). Decision-making support and the relationship between ‘private’ design space (involving the decisions of the individual design team) and the ‘shared’ design space (involving the decisions of all the design teams, Zang and Norman, 1994) are the specific topic of the present article. Decisions taken in the ‘private design space’ of the design team or ‘actor’ are closely related to the type of support that can be provided by a Collaborative Design system: automatic checks performed by activating procedures and methods, reporting of 'local' conflicts, methods and knowledge for the resolution of ‘local’ conflicts, creation of new IT objects/ building components, who the objects must refer to (the ‘owner’), 'situated' aspects (Gero and Reffat, 2001) of the IT objects/building components. Decisions taken in the ‘shared design space’ involve aspects that are typical of networked design and that are partially present in the ‘private’ design space. Cross-checking, reporting of ‘global’ conflicts to all those concerned, even those who are unaware they are concerned, methods for their resolution, the modification of data structure and interface according to the actors interacting with it and the design phase, the definition of a 'dominus' for every IT object (i.e. the decision-maker, according to the design phase and the creation of the object). All this is made possible both by the model for representing the building (Carrara and Fioravanti, 2001), and by the type of IT representation of the individual building components, using the methods and techniques of Knowledge Engineering through a structured set of Knowledge Bases, Inference Engines and Databases. The aim is to develop suitable tools for supporting integrated Process/Product design activity by means of a effective and innovative representation of building entities (technical components, constraints, methods) in order to manage and resolve conflicts generated during the design activity.
keywords	Collaborative Design, Architectural Design, Distributed Knowledge Bases, ‘Situated’ Object, Process/Product Model, Private/Shared ‘Design Space’, Conflict Reduction.
series	other
type	symposium
email
last changed	2012/12/04 07:53

_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	45f0
authors	Coleman, Kim
year	1994
title	Synergism and Contingency: Design Collaboration with the Computer
doi	https://doi.org/10.52842/conf.acadia.1994.209
source	Reconnecting [ACADIA Conference Proceedings / ISBN 1-880250-03-9] Washington University (Saint Louis / USA) 1994, pp. 209-217
summary	The outcome of an architectural project is always contingent, dependent upon conditions or events that are not established at the outset. A university design studio does not easily replicate the state of flux which occurs as an architectural commission proceeds. In developing an architectural project, each new situation, whether it be a building code issue, an engineering issue, or a client reaction, must be viewed as an opportunity to further refine and develop the design rather than a hindrance to the outcome. In the design studio I describe in this paper, students test processes which attempt to take advantage of contingent conditions, opening up the design solutions to new possibilities. As a means to open up the design process to new possibilities, this studio introduces the computer as the primary tool for design exploration. Through the computer interface, the work speculates on the possibilities of synergism, defined as the actions of two or more substances or organisms to achieve an effect of which each is individually incapable.' Three synergetic conditions are explored: that between the designer and the computer, that between the designer with computer and designers of previous works of art or architecture, and that between two or more designers working together with the computer. The lack of a predictable result, one that may be obvious or superficial, is a positive byproduct of the synergetic and contingent circumstances under which the designs are developed.
series	ACADIA
email
last changed	2022/06/07 07:56

_id	cf2009_585
id	cf2009_585
authors	E. Swarts, Matthew; A. Sheward, Hugo
year	2009
title	Using multi-level virtual environments as a medium for conducting design review through a shared IFC dataset
source	T. Tidafi and T. Dorta (eds) Joining Languages, Cultures and Visions: CAADFutures 2009, PUM, 2009, pp. 585- 597
summary	For a long time the Architecture-Engineering-Construction (AEC) community has had difficulty in communicating the content of their work, not only the various specialties involved, but also to their clients. Studies (Doorst and Cross 2001; Bakhtin 1994) suggest the importance of multi-role collaborative environments in supporting design processes. We are developing a Multi Level Design Review Tool for the AEC industry which allows multiple actors to congregate and interact as agents around a central Building Model. It merges real-time virtual 3D visualization technologies with Industry Foundation Classes (IFC) to support both high levels of semantic content and seamless interoperability.
keywords	Design review, virtual environment, interoperability
series	CAAD Futures
email
last changed	2009/06/08 20:53

_id	6572
authors	Fioravanti, A., Le Rose, L. and Sgueglia della Marra, C.
year	1994
title	KAAD: A Didactical Experience
doi	https://doi.org/10.52842/conf.ecaade.1994.x.w3w
source	The Virtual Studio [Proceedings of the 12th European Conference on Education in Computer Aided Architectural Design / ISBN 0-9523687-0-6] Glasgow (Scotland) 7-10 September 1994, pp. 257
summary	Students in the last year of their course in Building Engineering in the "La Sapienza" University of Rome study questions of architectural design of considerable complexity, since they are characterised by a marked degree of multi-disciplinary work. In the preceding years, the students acquire specialist notions in the fields of thermal behaviour of buildings, technological equipment, static security, architectural composition, programming and costs, technical and constructional details, and so on. However, there is a need for integration at design level of the disciplines learned. At the CAAD Laboratory of the Department of Technical Architecture and Town-planning Technique, with the contribution of the National Research Council, a software known as KAAD (Knowledge-based Assistant for Architectural Design) has been devised, with the aim of providing an effective aid to the activity of design.
series	eCAADe
last changed	2022/06/07 07:50

_id	de4c
authors	Flemming, U., Coyne, R. and Snyder, J.
year	1994
title	Case-based design in the SEED system
source	K. Khozeimeh ed., Computing in Civil Engineering, Volume 1, Proceedings of the First Congress held in conjunction with the A/E/C Systems `94, Washington, DC, June 20-22, 1994, New York: American Society of Civil Engineers
summary	We present the requirements for case-based design in a software environment to support the early phases in building design and outline an approach to satisfy them. We briefly discuss implementation issues and the larger information management context for the work.
series	other
email
last changed	2003/04/23 15:50

_id	ddss9429
id	ddss9429
authors	Geerling, Heinrich
year	1994
title	A Proposal for a Framework for Business Re-engineering in Design and Realization of Artificial Environments
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	According to the Top-Down design process', this paper gives a generic and qualitative description of a Concurrent Engineering Environment, that should support the problem solving procedure in town planning and architecture in a modern quality oriented society. A system that is based on the principal of democracy might guarantee the preservation of quality in the projection and realization of artificial environments. This environment can be seen as a part of the today often discussed "digital democracy", which practically is based on a infrastructure of computers, interfaces, software systems, a network, databases and a data presentation, that is able to comprise the expectations of professionals involved in the architecture and town planning process. The paper will discuss what the role of the designer and coordinator of this computer environment looks like,in order to design, plan, build and coordinate activities for the realization of this Concurrent Environment and how several software engineers work concurrently to develop tools that guarantee a modular integration. The backbone of this environment is the definition and use of standards for data exchange. Basically those standards are derived from two domains: artifacts will be described in a product model data, while natural resources are described in spatial data. Town planning has to integrate both models. It will be discussed briefly how far the data modelling language EXPRESS of part 11 of the ISO 10303 (Express Language Reference Manual) might be useful to model GIS related problems. An example will describe how a scenario of activities, from registration of real world data to recognition of requirements of society, the definition of development plans through design(competition), lawfulness checking and construction until demolition should look like.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9434
id	ddss9434
authors	Grant, M.
year	1994
title	Urban Gis - The Application of the Information Technologies to Urban Management
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Many cities in the UK and indeed throughout the developed world are characterised by the all too familiar symptoms of urban blight caused by insensitive intervention in the environment. The common denominator within this class of problem is the lack of a coordinated, integrated approach to the planning, design and maintenance of our cities. The cycle of development and redevelopment calls for input from a diverse range of disciplines relating to architecture, civilengineering, transport engineering, and the management of city utilities. This lack of a common up datable information base renders access to a global view of the city difficult, if not impossible.This problem has provided the motivation to move towards an integrated philosophy regarding information collection, collation and dissemination. The impetus is provided primarily through theincreasing complexity of urban management but also through central governments policy to progress towards decentralisation of services. Fiscal pressure to increase efficiency, lower manpower resources and arrive at speedier judgements all point to an increasing reliance on the information technologies. Current work at ABACUS within Strathclyde University addresses research whose objective is to identify, and then prototype, a relevant urban information system. It is proposed that by attributing a geometrical framework with those physical quantities thatare relevant to the formal and functional evaluation of the urban environment, the means of evaluating the qualities and quantities of the buildings aswell as the social and economic prospects may be realised.
series	DDSS
email
last changed	2003/08/07 16:36

_id	sigradi2006_e028c
id	sigradi2006_e028c
authors	Griffith, Kenfield; Sass, Larry and Michaud, Dennis
year	2006
title	A strategy for complex-curved building design:Design structure with Bi-lateral contouring as integrally connected ribs
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 465-469
summary	Shapes in designs created by architects such as Gehry Partners (Shelden, 2002), Foster and Partners, and Kohn Peterson and Fox rely on computational processes for rationalizing complex geometry for building construction. Rationalization is the reduction of a complete geometric shape into discrete components. Unfortunately, for many architects the rationalization is limited reducing solid models to surfaces or data on spread sheets for contractors to follow. Rationalized models produced by the firms listed above do not offer strategies for construction or digital fabrication. For the physical production of CAD description an alternative to the rationalized description is needed. This paper examines the coupling of digital rationalization and digital fabrication with physical mockups (Rich, 1989). Our aim is to explore complex relationships found in early and mid stage design phases when digital fabrication is used to produce design outcomes. Results of our investigation will aid architects and engineers in addressing the complications found in the translation of design models embedded with precision to constructible geometries. We present an algorithmically based approach to design rationalization that supports physical production as well as surface production of desktop models. Our approach is an alternative to conventional rapid prototyping that builds objects by assembly of laterally sliced contours from a solid model. We explored an improved product description for rapid manufacture as bilateral contouring for structure and panelling for strength (Kolarevic, 2003). Infrastructure typically found within aerospace, automotive, and shipbuilding industries, bilateral contouring is an organized matrix of horizontal and vertical interlocking ribs evenly distributed along a surface. These structures are monocoque and semi-monocoque assemblies composed of structural ribs and skinning attached by rivets and adhesives. Alternative, bi-lateral contouring discussed is an interlocking matrix of plywood strips having integral joinery for assembly. Unlike traditional methods of building representations through malleable materials for creating tangible objects (Friedman, 2002), this approach constructs with the implication for building life-size solutions. Three algorithms are presented as examples of rationalized design production with physical results. The first algorithm [Figure 1] deconstructs an initial 2D curved form into ribbed slices to be assembled through integral connections constructed as part of the rib solution. The second algorithm [Figure 2] deconstructs curved forms of greater complexity. The algorithm walks along the surface extracting surface information along horizontal and vertical axes saving surface information resulting in a ribbed structure of slight double curvature. The final algorithm [Figure 3] is expressed as plug-in software for Rhino that deconstructs a design to components for assembly as rib structures. The plug-in also translates geometries to a flatten position for 2D fabrication. The software demonstrates the full scope of the research exploration. Studies published by Dodgson argued that innovation technology (IvT) (Dodgson, Gann, Salter, 2004) helped in solving projects like the Guggenheim in Bilbao, the leaning Tower of Pisa in Italy, and the Millennium Bridge in London. Similarly, the method discussed in this paper will aid in solving physical production problems with complex building forms. References Bentley, P.J. (Ed.). Evolutionary Design by Computers. Morgan Kaufman Publishers Inc. San Francisco, CA, 1-73 Celani, G, (2004) “From simple to complex: using AutoCAD to build generative design systems” in: L. Caldas and J. Duarte (org.) Implementations issues in generative design systems. First Intl. Conference on Design Computing and Cognition, July 2004 Dodgson M, Gann D.M., Salter A, (2004), “Impact of Innovation Technology on Engineering Problem Solving: Lessons from High Profile Public Projects,” Industrial Dynamics, Innovation and Development, 2004 Dristas, (2004) “Design Operators.” Thesis. Massachusetts Institute of Technology, Cambridge, MA, 2004 Friedman, M, (2002), Gehry Talks: Architecture + Practice, Universe Publishing, New York, NY, 2002 Kolarevic, B, (2003), Architecture in the Digital Age: Design and Manufacturing, Spon Press, London, UK, 2003 Opas J, Bochnick H, Tuomi J, (1994), “Manufacturability Analysis as a Part of CAD/CAM Integration”, Intelligent Systems in Design and Manufacturing, 261-292 Rudolph S, Alber R, (2002), “An Evolutionary Approach to the Inverse Problem in Rule-Based Design Representations”, Artificial Intelligence in Design ’02, 329-350 Rich M, (1989), Digital Mockup, American Institute of Aeronautics and Astronautics, Reston, VA, 1989 Schön, D., The Reflective Practitioner: How Professional Think in Action. Basic Books. 1983 Shelden, D, (2003), “Digital Surface Representation and the Constructability of Gehry’s Architecture.” Diss. Massachusetts Institute of Technology, Cambridge, MA, 2003 Smithers T, Conkie A, Doheny J, Logan B, Millington K, (1989), “Design as Intelligent Behaviour: An AI in Design Thesis Programme”, Artificial Intelligence in Design, 293-334 Smithers T, (2002), “Synthesis in Designing”, Artificial Intelligence in Design ’02, 3-24 Stiny, G, (1977), “Ice-ray: a note on the generation of Chinese lattice designs” Environmental and Planning B, volume 4, pp. 89-98
keywords	Digital fabrication; bilateral contouring; integral connection; complex-curve
series	SIGRADI
email
last changed	2016/03/10 09:52

_id	f42b
id	f42b
authors	Hofmeyer, Herm
year	1994
title	KONSTRUKTIEF ONTWERPEN MET BEHULP VAN COMPUTERPROGRAMMATUUR (1) VERSLAG AFSTUDEERPROJECT (2) BIJLAGE GEBRUIKSAANWIJZING, CODE EN TOELICHTING BIJ PROGRAMMA
source	Technische Universiteit Eindhoven, Department of Architecture, Building and Planning, Structural Design Group
summary	This thesis presents the first basics of an expertsystem to transform a spatial into a structural design. The system thus relates space-allocation techniques and structural design software for stress-engineering. For the implementation Prolog-2 was used. Although in Dutch, the thesis provided background information for more recently written papers for eCAADe (2005) and CAADRIA (2006). The thesis was published as a paper in Design Studies (2006).
keywords	space-allocation; structural design; expert system
series	thesis:MSc
type	normal paper
email
last changed	2006/04/21 07:58

_id	ddss9455
id	ddss9455
authors	Kraria, H. and Bridges, Alan
year	1994
title	Building Integration Tools for Collaborative Design
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	For many years, research in CAAD systems has been mostly oriented towards single environ-ments, thus restricting the designer to a static environment. In reality the activities of user designers constantly interact with other participants activities (i.e. a structural engineer, services engineer, etc.). For instance, the architect is heavily influenced by the nature of the structural engineering process. It defines the character and integration of the basic components in other words, design is a collaborative process carried out by several participants with a single overall objective. The separation of architectural and engineering aspects in building design has brought on isolated computer tools. These tools are not interchangeable, the situation demands for their integration, all the interaction are supported by the social aspect of members of group participa-ting in collaborating work. The benefits of sharing CAD tools and related data between all members of the design team are that everyone works on the same information, co-ordination is easier and more accurate, and there is a reduction in the amount of repetition, as the need to redraw information is eliminated. The result is an increase in the accuracy and speed of the production of drawings. The technological aspects to support collaborative work and in particular the interaction process in design, is the main work issue being carried out at Strathclyde University, Department of Architecture and Building Science, Glasgow, Scotland U.K.
series	DDSS
email
last changed	2003/08/07 16:36

_id	a743
authors	Laing, L. and Kraria, H.
year	1994
title	CAD as an Interface for Integrated Collaborative Design
doi	https://doi.org/10.52842/conf.ecaade.1994.x.w5h
source	The Virtual Studio [Proceedings of the 12th European Conference on Education in Computer Aided Architectural Design / ISBN 0-9523687-0-6] Glasgow (Scotland) 7-10 September 1994, p. 235
summary	In the traditional approach to building design, the designer (usually the architect) produces a design (often quite detailed)in blueprint before handing this to the next member of the design team (engineer) to superimpose the structure, services etc. Often this proves so impractical that the initial proposal has to be referred back to the architect for revision, and the process repeated - and this cycle may be repeated many times. Such routines arise in building design because designers find collaboration among themselves difficult to control, the task of design integration ultimately falling upon the construction manager or the contractor. This is the most common cause of problems arising during the execution of the project on site, causing a delays in the construction process, and building failures which might only be detected after occupancy. As a test-bed for addressing this problem, a system of coordinated files is proposed for use by design-students (with a working knowledge of AutoCAD) during a design project. The aim is to related data (CAD information) across all students working on the same project but developing different aspects. Participating students will be drawn from a range of design specialisms. Each member accessing the same information while developing different aspects (e.g. structure, services, and cost modelling). This goes beyond the conventional use of 'XREF' (cross-referenced drawings) and involves each member accessing and working with the same dataset - e.g. using different layers, co-ordination is easier and the data better integrated - there is thereby a reduction of the amount of repetition as the need to redraw information is eliminated. References or an initial data-set is set up by the tutor and available for reference at any stage of design project. The technological aspects to support collaborative work (and in particular the interaction process in design) is the main thrust of the undergraduate degree in Building Design Engineering at the University of Strathclyde.
series	eCAADe
email
last changed	2022/06/07 07:50

_id	28f5
authors	Lloyd, P. and Scott, P.
year	1994
title	Discovering the design problem
source	Design Studies, Vol 15, No 2, 125-140
summary	The design disciplines of architecture, engineering, and computer science have provided three distinct models of the design process. We hypothesize that these models merely indicate three approaches to design, and that fragments of all three models will be found in any one discipline. To discuss this issue we present a discipline-independent cognitive framework which we then apply to a protocol analysis study of five engineering designers. Our results indicate that the designer's experience plays a key role in determining the design process.
series	journal paper
last changed	2003/04/23 15:14

_id	c6a8
authors	Powell, J.A.
year	1994
title	Informing multimedia: a sensitive interface to data for construction design professionals
source	Design Studies 1994 pp. 285-316
summary	'Design Dialogues: one' was the first in an occasional series of discussion meetings on design theory sponsored by the Design Research Society. The objective of the meeting was to explore the reasons for the apparent lack of progress in design research over the last decade and in particular whether the search for an atemporal, acultural, domain independent theory of design is a reasonable or realistic goal. The meeting was held on the 17th of May at the Department of Computer Science, University College London and attracted more than 40 participants from a wide variety of disciplines including the arts, architecture, computer science, engineering and business studies.In an attempt to continue the debate in the wider design research community, we have produced the following summary of the presentations and discussion period together with some concluding remarks. While we have made every effort ensure that summaries of the speakers presentations and the discussion are accurate, readers should be aware that they are based on notes taken during the meeting itself and consequently reflect a particular interpretation of the proceedings. However, for those who wish to follow up the ideas presented by the speakers in more detail, we have included a short list of references to relevant work at the end of this meeting summary.
series	journal paper
last changed	2003/04/23 15:50

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