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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Hits 1 to 20 of 261

_id ddss9402
id ddss9402
authors Arentze, T., Borgers, A. and Timmermans, H.
year 1994
title Design of a View-Based DSS For Location Planning
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary This paper describes the design of a DSS for locating facility networks. The proposed DSS is based on the principle of dynamic data definitions. The declarative and procedural forms of knowledge involved are identified by a logical analysis of planning tasks. The DSS supports an iterating process of adjusting and evaluating plan options. A flexible and interactive problem solving environment is achieved by means of a user defined set of views that captures both forms of knowledge. Each view describes the system to be planned in terms of a set of variables and attached evaluation procedures. The views are dynamic and linked data structures, so that changes in one view automatically lead to updating all linked views. The DSS supports both the specification of the set of views and its application to solve a specific location problem.
series DDSS
email
last changed 2003/08/07 16:36

_id ddss9411
id ddss9411
authors Bouillé, Francois
year 1994
title Mastering Urban Network Intersection And Superimposition, in an Object-oriented Knowledge System Integrating Rules, Neurons and Processes
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary Many networks cover the urban texture, either superimposed at a variable distance, or really intersecting, or even in interconnection. We briefly recall the HBDS model, working on persistent abstract data types associated to graphical representations and carrying algorithms expressing conditions to be verified and/or actions to be performed. HBDS is an integrated system too, including database, expert system dealing with fuzzy rules and facts, discrete simulation engine, and neural engine; it has a general purpose programming language. Any urban network is associated to a given prototype, according to the same scheme named prototype with more specific components. These prototypes allow to build the different thematic structures instantiations of the prototypes. All possible cases of arc intersection or "pseudo-intersection" (simple superimposition)or interconnection are obtained by, owing to new prototypes. Moreover, such (pseudo)-intersections are automatically recognized and processed without a human intervention, owing to classes ofconstraints and classes of rules. They deal with particular constraints concerning the location of some urban furniture, and rules concerning the way a cable or a pipe must follow according to thepre-existing other networks in a given area, the minimal distances, minimal or maximal depths, and some required equipments. Urban classes of (pseudo-)intersections inserted in the hyperciass"neuron", inheriting of neural features, may be used for automated learning of urban knowledge; owing to their "behavior", these neurons can communicate and perform actions on other components. Urban classes inserted in the hyperciass "process" may be used for building very large models simulating complex urban phenomenons, thus allowing a better understanding of the real phenomenons. As a conclusion, we emphasize the methodological aspects of object-oriented integration for an efficient processing of the urban context, based on prototyping and mixing rules, neurons and processes.
series DDSS
last changed 2003/08/07 16:36

_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 4f23
authors Dieberger, Andreas
year 1994
title Navigation in Spatial Information Environments: User Interface Design Issues for Hypertext and VR Systems Posters
source Proceedings of the ECHT'94 European Conference on Hypermedia Technologies 1994
summary The Information City project (presented in a poster at Hypertext 93) uses the spatial user interface metaphor of a city to organize and navigate large collections of hypertextual information. As we are used to navigate real life cities the city metaphor -- enriched with magic features -- should help to navigate information structures. A first implementation of the Information City was started in a MUD system. MUDs are networked multi-user text-adventure games which usually make use of a house / city metaphor. MUDs are conceptually similar to hypertext systems and navigational findings in those systems are therefore relevant also to hypertext. While implementing the first parts of the city research into navigation in MUDs was found necessary. This poster presents some results of this navigational study and describes how knowledge in the domains of architecture and city-planning can be used to design an easy to navigate virtual city. Highlights of the results concern magic features and collaboration. Magic features extend the spatial metaphor beyond typical properties of space. An example is the hypertext link which allows tunneling through the spatial structure. Other results concern the richness of spaces (or space-descriptions) and communication between users. It seems the chief benefit of the spatial metaphor of the city is in communication about spatial relationships of information. The findings probably are valuable in designing any information system using spatial metaphors. They are especially useful for hypertext systems realized in some virtual environment -- be it a MUD or an immerse virtual reality system.
series other
last changed 2002/07/07 16:01

_id 27b5
authors Dießenbacher, Claus and Rank, Ernst
year 1995
title A Multimedia Archaeological Museum
source Multimedia and Architectural Disciplines [Proceedings of the 13th European Conference on Education in Computer Aided Architectural Design in Europe / ISBN 0-9523687-1-4] Palermo (Italy) 16-18 November 1995, pp. 13-20
doi https://doi.org/10.52842/conf.ecaade.1995.013
summary This paper will present a project, which was first initiated in 1994 as a graduate students seminar and is now being continued as a research project in a cooperation of computer scientists, architects and archaeologists. An ancient roman city (Colonia Ulpia Traiana near todays Xanten in Germany) has been reconstructed, using various levels of abstraction. On the coarsest level, a 3D-model of the whole city was established, distinguishing between different historical periods of the city. The second level picks places of special interest (temples, the forum, the amphitheater, the townbaths etc.) and reconstructs these buildings or groups of buildings. On the finest level important interior parts or functional details like the Hypocaustae in the town-baths are modelled. All reconstructions are oriented as close as possible to results from excavations or other available documents. All levels of the 3D-model have been visualized using photorealistic images and sequences of video animations. The 3D model is integrated into a multimedia environment, augmenting the visualization elements with plans of the city and individual buildings and with text documents. It is intended, that parts of the outlined system will be available at the site of the ancient city, where today a large public archaeological park is located.
series eCAADe
more http://dpce.ing.unipa.it/Webshare/Wwwroot/ecaade95/Pag_2.htm
last changed 2022/06/07 07:55

_id 778e
authors Gann, D.
year 1994
title Archaeological Site Reconstruction With AutoDesk's 3D Studio
source CSA Newsletter Vol 7:3 Nov 1994
summary 3D Studio is an IBM-compatible computer modeling program that enables users to create three-dimensional renderings of a variety of objects. In its ability to import a wide variety of maps and other images, 3D Studio allows for the realistic rendering of models created within AutoCAD or other 3D CAD packages. Over the past year, the Homol'ovi research program has been utilizing this software to create near photo-realistic renderings of conjectural site models. My own interests in three-dimensional computer modeling developed out of work at the site of Homol'ovi IV, a 150-room pueblo site located near Winslow, Arizona. The site was situated upon a steep 30-meter bluff with a bedrock cap. Approximately 24 rooms were located on top of the bedrock cap, with another 125 rooms situated on the slope of the butte. During the 1989 field season five structures were excavated, while a separate crew worked clearing and mapping the tops of walls. Mapping was accomplished with a Topcon EDM/theodolite station, and a standard map was created from this process. (See Fig. 3.) While the map was sufficient to show the general layout of the site, I remained unsatisfied; a 2D plan view simply did not convey the vertical dimension of the pueblo. At this point the Homol'ovi Research Program purchased a copy of AutoCAD in order to begin exploring three-dimensional mapping and modeling.
series other
last changed 2003/04/23 15:50

_id ddss9432
id ddss9432
authors Goldschmidt, G.
year 1994
title Visual Reference for Design: Analogy, Transformation and the Act of Sketching
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary All designers know that it is impossible to infer a design solution from the givens of a task alone, no matter how complete and well presented they are. Therefore, designers seek to complementinformation they receive, and the material they bring into the task environment includes visual images. Images may be gathered from every imaginable source, from domain-specific images (in architecture they are usually classified and pertain to building type, location, period, technology, style or creator) through 'metaphoric' images (art, nature) to eclectic personal favourites. Inaddition, randomly encountered images may find their way into a database of references: a depository of potentially useful images. With the exception of factual information that fills in thetask givens, it is usually far from clear what purpose may be served by images in general, or to what use the specific images aligned for a particular task may be put. We propose that the singlemost significant 'on line' role of visual references during the process of designing is to suggest potential analogies to the entity that is being designed. The process of discovering and exploitingan analogy in design is complex; we shall explain it in terms of Gentner's structure mapping theory, which we adapt to visual structures. We further propose that the abstraction process thatmust take place for the successful identification and mapping from source (visual reference) onto target (designed entity) requires transformations of images, and such transformations are bestachieved through sketching. Sketching facilitates the two way process of movement from the pictorial to the diagrammatic and from the schematic to the figural. Such transformations musttake place to arrive at the match that allows conceptual transfer, mapping of structural relations and insight through analogy.
series DDSS
email
last changed 2003/08/07 16:36

_id ddss9433
id ddss9433
authors Gorp, L.F.M. van, Gelder, J.T. de and Steenhuis, C.M.
year 1994
title A Functional Approach to Conceptual Modelling of Steel Structures
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary The life cycle of a steel structure can be divided into six main stages: design, detailing, manufacturing, erection, maintenance and demolition. For each stage, a different party is responsible,often using its own automation aids to assist its specific task. Since all parties operate on the same steel structure, there is a need for integration between the islands of automation. Most of the developments in this area, including ISO/STEP, are directed towards the development of conceptual models carrying all relevant information through the life cycle of the product. The conceptual models are developed following a probabilistic approach. In this approach, a conceptual model is inductively developed by analyzing and modelling empirical similarities. In this paper we explain the problems resulting from following a probabilistic modelling approach by presenting its consequences. This is illustrated by the logical product model developed in Eureka project "CIMSteel". A potential solution to these problems is proposed by presenting a functionalapproach to the development of an integrated system for design, detailing and manufacturing of steel structures. The strength of this approach is illustrated by a simple example.
series DDSS
email
last changed 2003/08/07 16:36

_id 2640
authors Graziano, Laura and Mortola, Elena
year 1994
title Strategic Choices for Venice
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. 90-99
doi https://doi.org/10.52842/conf.ecaade.1994.090
summary The Venice has been in the middle of a lot of proposals and initiatives for some time that range from environmental restoration to the transformation of important areas of the ancient centre, from the renewal of the exibition spaces to the rationalisation of manufacturing areas and communications. Opinions as to how, where and whether to go ahead with these interventions are controversal and and they has been responsable for the current situation of status quo in Venice. Various proposals have been put foreword to semplify city control regulations to put into actions quickly and efficiently in the complicated context. Such methods supported by multimedia tools can efford the participation of the actors and the decision making. Application the Strategic Choice approach for the curring out of the projects proposed for the metropolitan area of Venice and the use of multimedia tools (visualisation and hypertext) to favour the involvement of the actors are described.

series eCAADe
email
last changed 2022/06/07 07:51

_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 ddss9445
id ddss9445
authors Hillier, B., Penn, A., Dalton, N., Chapman, D. and Redfern, F.
year 1994
title Graphical Knowledge Interfaces: The Extensive and Intensive Useof Precedent Data Bases in Architecture and Urban Planning
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary Space syntax' is a family of techniques for the analysis of architectural and urban space which can be used both in research and design mode. This means, for example, that a redevelopment area in an urban context can be researched using space syntax models which can then be turned round and used as the basis for design idea of a 'graphical knowledge interface' (GM) is a further development of this in feeding research into design. It starts from the important role that the analysis and comparison of 'precedents', that is, cases with some similarity of the design problem in hand, often play in design. In a GM, 'precedents' which have already been researched using the space syntax methodology and which are relevant to a particular design problem - say a set of urban areas or a set of housing estates - can be brought into the modelling technique, so that the designer has on hand not simply a space syntax model of the problem in hand but an intelligent 'precedent' in the form of graphical and statistical representations which can be manipulated and interrogated during the design process, in much the same way as discussion of precedent are currently brought into design but with much more complex data and much more powerful theoretical tools. GM can be used as intensive mode, in which many different kinds of data - say on land uses, rents, or crime rates - are added to the model of an area, or in extensive mode where the emphasis is on comparing, say, the structures of a large number of urban areas. The GM will be illustrated through a worked example of a recent major urban design project in which the team has participated.
series DDSS
email
last changed 2003/08/07 16:36

_id 130d
authors Hoinkes, R. and Mitchell, R.
year 1994
title Playing with Time - Continuous Temporal Mapping Strategies for Interactive Environments
source 6th Canadian GIS Conference, (Ottawa Natura Resources Canada), pp. 318-329
summary The growing acceptance of GIS technology has had far- reaching effects on many fields of research. The recent developments in the area of dynamic and temporal GIS open new possibilities within the realm of historical research where temporal relationship analysis is as important as spatial relationship analysis. While topological structures have had wide use in spatial GIS and have been the subject of most temporal GIS endeavours, the different demands of many of these temporally- oriented analytic processes questions the choice of the topological direction. In the fall of 1992 the Montreal Research Group (MRG) of the Canadian Centre for Architecture mounted an exhibition dealing with the development of the built environment in 18th- century Montreal. To aid in presenting the interpretive messages of their data, the MRG worked with the Centre for Landscape Research (CLR) to incorporate the interactive capabilities of the CLR's PolyTRIM research software with the MRG's data base to produce a research tool as well as a public- access interactive display. The interactive capabilities stemming from a real- time object- oriented structure provided an excellent environment for both researchers and the public to investigate the nature of temporal changes in such aspects as landuse, ethnicity, and fortifications of the 18th century city. This paper describes the need for interactive real- time GIS in such temporal analysis projects and the underlying need for object- oriented vs. topologically structured data access strategies to support them.
series other
last changed 2003/04/23 15:14

_id a887
authors Kaplan, Nancy and Moulthrop, Stuart
year 1994
title Where No Mind Has Gone Before: Ontological Design for Virtual Spaces Papers
source Proceedings of the ECHT'94 European Conference on Hypermedia Technologies 1994 pp. 206-216
summary Hypermedia designers have tried to move beyond the directed graph concept, which defines hypermedia structures as aggregations of nodes and links. A substantial body of work attempts to describe hypertexts in terms of extended or global spaces. According to this approach, nodes and links acquire meaning in relation to the space in which they are deployed. Some theory of space thus becomes essential for any advance in hypermedia design; but the type of space implied by electronic information systems, from hyperdocuments to "consensual hallucinations," requires careful analysis. Familiar metaphors drawn from physics, architecture, and everyday experience have only limited descriptive or explanatory value for this type of space. As theorists of virtual reality point out, new information systems demand an internal rather than an external perspective. This shift demands a more sophisticated approach to hypermedia space, one that accounts both for stable design properties (architectonic space) and for unforeseen outcomes, or what Winograd and Flores call "breakdowns." Following Wexelblat in cyberspace theory and Dillon, McKnight, and Richardson in hypermedia theory, we call the domain of these outcomes semantic space. In two thought experiments, or brief exercises in interface design, we attempt to reconcile these divergent notions of space within the conceptual system of hypermedia.
keywords Spatial Hypertext; Interface Design; Information Mapping; Navigation
series other
last changed 2002/07/07 16:01

_id e8b9
authors Kesler, Beatrice
year 1994
title PROGRAMME OF HABITAT WISHES - A TOOL FOR COMMUNICATION
source Beyond Tools for Architecture [Proceedings of the 5th European Full-scale Modeling Association Conference / ISBN 90-6754-375-6] Wageningen (The Netherlands) 6-9 September 1994, pp. 23-30
summary How to develop an attractive built environment with the desired housing and well kept outdoor conditions? As long as experts do not ask lay-people for their needs and wants, we must not be surprised that people are not interested in their environment and show a lack of care. The contribution of (future) inhabitants in the planning process can have a material and a social impact on building, improving and maintaining a neighbourhood. One of the problems that have to be solved is the question how to improve the communication between non-professionals and professionals, between inhabitants and designers (architects). Inhabitants express themselves in a simple language about the number of rooms, cupboards, size of the garden and parking place. Architects communicate in drawings of designs and talk in a technical language about functions, forms, spacial structures, light and expression. It can be helpful - is the fundamental idea in Wageningen - to develop a shared language, to start talking about activities and to use scale models in a structured process. The participation process is a sort of exploratory expedition. Good communication is a must for a successful participation process. A clear expression of the 'programme of habitat wishes' is the first step in the dialogue between inhabitants and architect. The Structural Space Planning Method is a structured process to develop a 'programme of habitat wishes' for the built environment. It can be related to all sorts of objects: houses, co-housing projects, institutions, playgrounds, streets or neighbourhoods. Full scale and scale models are part of the Structural Space Planning Method, as described by Van Dam (these proceedings). This contribution describes some practical experiences with the development of the 'programme of habitat wishes' and the effects on the participation process.
keywords Model Simulation, Real Environments
series other
type normal paper
more http://info.tuwien.ac.at/efa
last changed 2004/05/04 10:59

_id ddss9452
id ddss9452
authors Koutamanis, Alexander
year 1994
title Recognition and Retrieval in Visual Architectural Databases
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary The development of visual architectural databases is heavily constrained by two technically, practically and conceptually intricate problems, input and retrieval. Input of visual images indifferent forms and from a variety of sources results into computer documents which can only be reproduced and disseminated. Any other use requires extensive annotation of the images with respect to indexing terms and other conceptual structures that make the images identifiable. The bulk of even modest visual databases and the complexity of the images and of the conceptual schemes means that interactive processing is labour-intensive and unreliable. Retrieval also relies on the same processes of annotation and indexing, which make possible the correlation of database contents with user queries. The paper presents the potential of automated recognition for inputting architectural floor plans into visual databases. An optically digitized image is segmented and each segment recognized as an instance of a building element (wall, door, window, etc.). The array ofrecognized elements is then controlled for recognition and segmentation errors. Further processing allows identification of spaces in the floor plan and of their interrelationships. The output of the process is a symbolic array that is much more compact than the original pixel array and also amenable to abstract and /or specific user queries, such as "How many doors are there in the floorplan" or "Which floor plans contain a double loaded corridor". These queries can be input verbally or graphically. Identification of building and spatial elements in a floor plan also allows use of vocabulary control in retrieval: user queries are checked against a thesaurus of architectural terms for accuracy and precision. The user is then presented with options for the improvement of the query before proceeding with identifying relevant entries in the database. Use ofvocabulary control as a search intermediary improves performance and reduces user frustration by making explicit the relevance of a query.
series DDSS
last changed 2003/08/07 16:36

_id ddss9456
id ddss9456
authors Kubiak, Bernard and Korowicki, Antoni
year 1994
title Identification And Analysis of the Recreational Behaviour Forms and the Needed Recreational Space Using the Integrated Spatial and Object-Oriented Gis: Concepts and Statements
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary This paper is concerned with how to measure and investigate changes in the recreational behaviour and the required recreational space in Polish seaside recreational areas in last few years. Spatial information is an integral part of the identification and analysis of recreational behaviour and required recreational space. We postulate, therefore, that spatial information should be fully incorporated in integrated object-oriented GIS and Decision Support Technology. We argue in this paper that the existing theoretical approaches with their descriptive and technical basis do not offer directions for its application and evaluation. They do not seek to explain the processes undergone by spatial information, nor define appropriate data models. New approaches to GIS use object-oriented structures and expert systems concepts, and they will become increasingly helpful in understanding GIS. It is not unreasonable to expect that the most important issue is to use a data model or object-oriented models which closely represent the user's concept of the geographic object for representing spatial phenomena. We have discovered that most Polish users in this field are unable to collect the data they require directly. Thus they have to use methods and techniques, which cannot be found in GIS such as SWOT analysis. According to our experiences, the identification and analysis of the recreational behaviour and the required recreational space should be defined as a system approach where: (i) recreational space requires an object, (ii) state of recreational space is defined by the set of values of recreational space features, and (iii) the utility of the recreational space is defined by a set of features. The identification and analysis of the recreational behaviour in the presented approach are based on the features/utilities matrix of the recreational space and the computer map. The development of such a system needs many organizational changes. It is shown that in many applications organizational rather than the technical aspects of GIS determine their future and open the way to new spatial analytical techniques.
series DDSS
last changed 2003/08/07 16:36

_id 8fb2
id 8fb2
authors McCall, Raymond, Bennett, Patrick and Johnson, Erik
year 1994
title An Overview of the PHIDIAS II HyperCAD System
source Reconnecting [ACADIA Conference Proceedings / ISBN 1-880250-03-9] Washington University (Saint Louis / USA) 1994, pp. 63-74
doi https://doi.org/10.52842/conf.acadia.1994.063
summary The PHIDIAS II HyperCAD system combines the functionality of CAD graphics, hypermedia, database management and knowledge-based computation in a single, highly integrated design environment. The CAD functionality includes both 3-D and 2-D vector graphics. The hypermedia includes support for text, raster images, video and sound. The database management enables persistent storage and interlinking of large collections of text, images, video, sound and vector graphics, i.e., thousands of vector graphic objects and drawings in a single database. Retrieval is provided both through use of "associative indexing" based on hyperlinks and through use of an advanced query language. The knowledge- based computation includes both inference and knowledgebased critiquing.

A highly unusual feature of PHIDIAS II is that it implements all of its functions using only hypermedia mechanisms. Complex vector graphic drawings and objects are represented as composite hypermedia nodes. Inference and critiquing are implemented through use of what are known as virtual structures [Halasz 1988], including virtual links and virtual nodes. These nodes and links are dynamic (computed) rather than static (constant). They are defined as expressions in the same language used for queries and are computed at display time. The implementation of different kinds of functions using a common set of mechanisms makes it easy to use them in combination, thus further augmenting the system's functionality.

PHIDIAS supports design by informing architects as they develop a solution's form. The idea is thus not to make the design process faster or cheaper but rather to improve the quality of the things designed. We believe that architects can create better buildings for their users if they have better information. This includes information about buildings of given types, user populations, historical and modern precedents, local site and climate conditions, the urban and natural context and its historical development, as well as local, state and federal regulations.

series ACADIA
last changed 2022/06/07 07:59

_id b4e1
authors Merz, R.
year 1994
title Shape deposition manufacturing
source Vienna University of Technology
summary This thesis addresses the issue of rapidly and automatically fabricating functional metal parts directly from CAD models. A newly developed process called Shape Deposition Manufacturing (SDM) is introduced. The process is based on the concept of layered manufacturing in SFF, but uses separate deposition and shaping steps to create a layer. Three dimensionally shaped layers are created using 5-axis CNC machining, to achieve the required geometric accuracy for fully functional shapes. Thermal deposition technologies (thermal spraying, welding) are used to achieve the required material properties. A novel, droplet based deposition process, microcasting, has been developed, to create well- bonded, high-strength material, while minimising the heat input into previously shaped layers. To create layers with a true three dimensional geometry, more detailed building strategies, than used by conventional SFF processes, are required by the SDM process. A CAD based planning system, which addresses these issues by decomposing a solid model of a part into layers and manufacturable, fully three dimensional segments is described. An automated testbed facility installed at Carnegie Mellon's Shape Deposition Laboratory is discussed, and shows the feasibility of automating the process. The microcasting process is explained in detail and its performance in the SDM environment is evaluated. Different strategies and material combinations for the support structure have been developed and are presented with detailed descriptions of several building strategies for parts with various complexity and material quality. Material properties of structures created by the SDM process are evaluated. Problems affecting the accuracy and material integrity of SDM created structures, which mainly involve the buildup of thermal stresses during material deposition, are identified and opened for future research. Finally, various parts, with different complexity, have been built with the SDM process, to show the feasibility and performance of the process. Building time and material usage are evaluated and compared to conventional SFF processes
series thesis:PhD
email
more http://www.arcs.ac.at/dissdb/rn024248
last changed 2003/02/12 22:37

_id 9aa3
authors Michalewicz, Z.
year 1994
title Genetic Algorithms + Data Structures = Evolution Programs
source Springer-Verlag, Berlin
summary Genetic algorithms are founded upon the principle of evolution, i.e., survival of the fittest. Hence evolution programming techniques, based on genetic algorithms, are applicable to many hard optimization problems, such as optimization of functions with linear and nonlinear constraints, the traveling salesman problem, and problems of scheduling, partitioning, and control. The importance of these techniques is still growing, since evolution programs are parallel in nature, and parallelism is one of the most promising directions in computer science. The book is self-contained and the only prerequisite is basic undergraduate mathematics. This third edition has been substantially revised and extended by three new chapters and by additional appendices containing working material to cover recent developments and a change in the perception of evolutionary computation.
series other
last changed 2003/04/23 15:14

_id ca57
authors Reid, Elizabeth
year 1994
title Cultural formations in text-based virtual realities
source University of Melbourne
summary Beginning with an understanding of virtual reality as an imaginative experience and thus a cultural construct rather than a technical construction, this thesis discusses cultural and social issues raised by interaction on 'MUDs', which are text-based virtual reality systems run on the international computer network known as the Internet. MUD usage forces users to deconstruct many of the cultural tools and understandings that form the basis of more conventional systems of interaction. Unable to rely on physical cues as a channel of meaning, users of MUDs have developed ways of substituting for or by-passing them, resulting in novel methods of textualising the non- verbal. The nature of the body and sexuality are problematised in these virtual environments, since the physical is never fixed and gender is a self-selected attribute. In coming to terms with these aspects of virtual interaction, new systems of significance have been developed by users, along with methods of enforcing that cultural hegemony through power structures dependent upon manipulation of the virtual environment. These new systems of meaning and social control define those who use MUDs as constituting a distinct cultural group.
keywords Subject Social Evolution; Virtual Reality; Interactive Multimedia; Internet
series thesis:MSc
email
last changed 2003/02/12 22:37

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