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	ddss9427
id	ddss9427
authors	Engelen, Guy and White, Roger
year	1994
title	A Strategic Planning and Policy Decision Support Tool for Urban Regions
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	In this paper we present a Decision Support System developed to assist urban designers, planners and policy makers to explore and evaluate possible urban layouts and their growth patterns. Thecore of the system consists of a modelling shell allowing the user to specify cellular automata based models of urban and regional systems. These models capture the effect of local spatial processes in which the use, or desired use of each parcel or cell of land is determined partly by institutional and environmental factors, and partly by the activities present in its neighbourhood. Since each cell affects every other cell within its neighbourhood, a complex dynamic emerges. Unlike conventional cellular automata, the models are defined with a large neighbourhood --over a hundred cells-- a relatively large number of states --more than a dozen in some applications-- representing socio-economic and natural land-uses. The approach permits the straightforward integration of detailed physical, environmental, and institutional constraints, as well as including the effects of the transportation and communication infrastructure. These models thus permit a very detailed representation of evolving spatial systems. The current version of the system represents urban areas as consisting of up to 10.000 interacting zones, each roughly the size of an individual city block. These models are easy to build and apply, yet empirical tests show that they produce realistic simulations of urban land use dynamics. Consequently, they are well suited to form the heart of the DSS, which provides the user with a number of tools for exploration,analysis and evaluation of alternative futures of the system as they result from policy interventions that are imposed by means of what-if experiments and scenario analysis. For example, the DSS isable to identify areas in which pressure for change in land use restrictions may become critical under particular development strategies. In the DSS, the modelling shell is coupled to a simple,custom-built GIS. In the stand-alone application of the DSS, this stores the detailed geographical qualities of the area being modelled, and allows basic overlay manipulations. It also displays theresults of the model while the simulation proceeds. Alternatively, the GIS can serve as aninterface to more elaborate, commercial GIS systems.
series	DDSS
email
last changed	2003/08/07 16:36

_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	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	ddss9442
id	ddss9442
authors	Hensen, Jan
year	1994
title	Energy Related Design Decisions Deserve Simulation Approach
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Building energy consumption and indoor climate result from complex dynamic thermal interactions between outdoor environment, building structure, heating, ventilating and air-conditioning (HVAC) system and occupants. Apart from a few trivial relations, this reality is too complicated to be casted in simple expressions, rules or graphs. As shown in a previous paper, there are now tools available - in the form of computer simulation systems - which treat the building and plant as an integrated, dynamic system. It is argued that these can and should be used in the context of design decision support and design evaluation related to thermal energy. The paper will give ageneral overview of building energy design tools which range from simplified design tools (SDT's) to comprehensive modelling and simulation systems. It will be demonstrated why SDT's are very limited in scope and range of applicability. With respect to building energy simulation the paper will compare simplified models with comprehensive models in terms of ressource needs, applicability etc. In view of the risk involved when using SDT´s or simplified models, the paper strongly promotes the use of comprehensive tools in combination with emerging intelligent front ends. The message ofthe paper will be: let the machine do the work.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9447
id	ddss9447
authors	Jabi, Wassim
year	1994
title	An Outline of the Requirements for a Computer Supported Collaborative Design System
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
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 specific rules and grammars. Yet, there is a general 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 cannot support early design stages which involve client briefing, data collection, building program formulation, and schematic design generation. Thus, if CAAD is to ultimately benefit the design process, it must (1) emulate and support the design team approach to architectural problem solving and (2) be deployed in the earliest possible stages of the design process. This paper seeks to study remedies to both of the afore-mentioned limitations through focusing on the interaction between a set of requirements (the building program) and the architectural solution that satisfies them (the schematic design). The core of this interaction forms 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 modelling (based on the NIAM notation), object-oriented algorithms, and distributed agents. Based on a literature survey and earlier findings on the role of artifacts in collaborative design, this paper outlines the requirements for the above system and reports on initial experiments. Thus, it constitutes the first stage of a research project that will lead to a full implementation of a distributed collaborative computer environment addressing the above issues.
series	DDSS
type	normal paper
email
last changed	2008/06/12 16:32

_id	ddss9450
id	ddss9450
authors	Kohsaka, Hiroyuki
year	1994
title	Spatial Decision Support System for Retail Activity
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	This presentation proposes an architecture of Spatial Support System (SDSS) for retail activity. This SDSS is made up of four key modules: data, monitoring, spatial analysis/modelling, and map and report generators. In the data module, spatial shopping data are gathered from Point of Sales (POS) Systems as well as trade area surveys. Two examples will be presented to collect spatial shopping data. One is from an ordinal trade area survey and the other is from point IC cards. The monitoring module can represent retail trade areas as three-dimensional surfaces as well as contour maps by using a colour graphics display after a cartographic analysis which consists of gridding and interpolation of these data. As an application example of monitoring module, retail trade area for a store or a shopping street will be shown as a three-dimensional surface. In addition, themonitoring module can describe a retail structure consisting of the trade area of several retail stores to analyze the spatial competition of them. In the spatial analysis/modelling module, optimization methods search for an optimal location of a new store and an impact analysis assesses the locational impacts of the store upon the existing stores. An optimal location of new supermarket will be solved as an example for this module.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9462
id	ddss9462
authors	Liggett, Robert S. and Jepson, William H.
year	1994
title	Implementing an Integrated Environment for Urban Simulation CAD, Visualization and GIS
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Using technology which has been adapted from military flight simulation hardware and software, researchers at UCLA's Graduate School of Architecture and Urban Planning are currently developing an integrated computing environment for Urban Simulation which includes a high-level visual simulation package, an industry standard CAD system, and a traditional two dimensional geographic information system and data bases. The focal point of the integrated system is a visual simulation engine which has been developed using Silicon Graphics' IRIS Performer application development environment. With this system, aerial photographs can be combined with street level video to efficiently create a realistic (down to plants, street signs and the graffiti on the walls) model of an urban neighbourhood which can then be used for interactive fly and walk-through demonstrations. Links have been established between this visual simulation system and AutoCAD to allow models (at varying levels of detail) to be generated using the CAD system and translated into the form required for the visualization system. Links between the GIS system (in this case ARC/INFO and ARCVIEW) and the visual simulation system provide the capability for dynamic query and display of information from the GIS data base in a real-time 3-dimensional format. Links between the CAD and GIS systems allow common base maps to be used for the GIS and modelling systems as well as automatic generation of 3-d form. While an earlier paper by the authors discussed proposed strategies for such an Urban Simulation System, this paper focuses on the results of actual implementation of these strategies, as well as the use of the system for modelling, exploration and display of alternative physical environments.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9480
id	ddss9480
authors	Schipper, Roel and Augenbroe, Godfried
year	1994
title	An Information Model of Energy Performance in Early Building Design
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Design is a creative and dynamic process. The level to which a future generation of Intelligent Integrated Building Design Systems will be able to support this process depends on the power of the underlying conceptual models to cover the semantics of design. In the definition of generic building models, the concept of constraints appears to be a powerful means to formalize those semantics. Both design performance goals, and rules and relations in design composition can be described as constraints. The Engineering Data Model (EDM), recently developed at UCLA, acknowledges this fact. It allows the formal definition of object oriented building models, using constraints as the central concept for describing relations. This paper will discuss the development of an EDM building model for the integrated design for energy performance, and the implementa-tion of this model in a small prototype system. We will specifically deal with modelling informati-on in the early design stages. This information typically consists of multiple global design alternatives on one hand, and a wide range of conflicting design goals on the other hand. In the paper, it is demonstrated that integration of these conflicting views on building performance in one coherent model is the key to obtaining an optimal design result. Using the Dutch building codes for energy performance (NEN 2916) as an example of design goals, the concepts and relations of these building codes were translated to a formal EDM model. A small shell was built on top of this computer-interpretable model, to demonstrate the useability of the model during the solving of a concrete design problem. It is shown that the EDM building model is able to provide the designer with integrated information through combining different sets of performance constraints and design alternatives in one environment.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9498
id	ddss9498
authors	Vriens, Dirk and Hendriks, Paul
year	1994
title	Functionally Defining Systems: A Systems Theory Approach to Decision Support
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Research into decision making seems to suffer from two related weaknesses. The first is lack of attention for the dynamic nature of the decision process and environment. Research attempts to encompass dynamic features are sparse. The second weakness is the allegation that decision alternatives can be discerned on an a priori basis, thus facilitating the use of a choice rule to pick the 'optimal' or 'satisficing' alternative (this is the basic assumption of the prevailing rationalistic approach of decision modelling). However, the assumption of an a priori conception of alterna-tives is not realistic, since it ignores the fact that the exploration and elaboration of alternatives forms an integral part of the decision process. Although several attempts have been made to overcome these problems, a coherent theory seems to be lacking. This paper explores the possibilities of systems theory as an offset for new decision modelling. A system (in the cybernet-ic sense) is, roughly speaking, a collection of elements related in such a manner that emergent properties (i.e., properties that consist the level of the whole, not at the level of its parts) come about. There are many different approaches to systems theory and not all of these are equally useful for decision research. For our purposes, systems that have 'adaptive' properties are worthwhile because they may encompass dynamic features. Furthermore, the use of adaptive, dynamic systems leads to a solution for the problem of the 'disembodied' conception and choice of alternatives, since the choice options automatically follow from the defined system and may change because of its dynamic nature. The important question is how a system can be defined in order to capture the dynamic nature of decision making. In order to answer this question, the paper starts with a short overview of problems with traditional modelling in decision making and systems theory. Next, it will be argued that the crux of defining systems that capture dynamics is to define them 'functionally', i.e. regarding the goals that enter the decision process. An outline of a method to do this will be given. In the last part, the consequences for computerized decision support will be stated.
series	DDSS
last changed	2003/08/07 16:36

_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	cf2011_p127
id	cf2011_p127
authors	Benros, Deborah; Granadeiro Vasco, Duarte Jose, Knight Terry
year	2011
title	Integrated Design and Building System for the Provision of Customized Housing: the Case of Post-Earthquake Haiti
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 247-264.
summary	The paper proposes integrated design and building systems for the provision of sustainable customized housing. It advances previous work by applying a methodology to generate these systems from vernacular precedents. The methodology is based on the use of shape grammars to derive and encode a contemporary system from the precedents. The combined set of rules can be applied to generate housing solutions tailored to specific user and site contexts. The provision of housing to shelter the population affected by the 2010 Haiti earthquake illustrates the application of the methodology. A computer implementation is currently under development in C# using the BIM platform provided by Revit. The world experiences a sharp increase in population and a strong urbanization process. These phenomena call for the development of effective means to solve the resulting housing deficit. The response of the informal sector to the problem, which relies mainly on handcrafted processes, has resulted in an increase of urban slums in many of the big cities, which lack sanitary and spatial conditions. The formal sector has produced monotonous environments based on the idea of mass production that one size fits all, which fails to meet individual and cultural needs. We propose an alternative approach in which mass customization is used to produce planed environments that possess qualities found in historical settlements. Mass customization, a new paradigm emerging due to the technological developments of the last decades, combines the economy of scale of mass production and the aesthetics and functional qualities of customization. Mass customization of housing is defined as the provision of houses that respond to the context in which they are built. The conceptual model for the mass customization of housing used departs from the idea of a housing type, which is the combined result of three systems (Habraken, 1988) -- spatial, building system, and stylistic -- and it includes a design system, a production system, and a computer system (Duarte, 2001). In previous work, this conceptual model was tested by developing a computer system for existing design and building systems (Benr__s and Duarte, 2009). The current work advances it by developing new and original design, building, and computer systems for a particular context. The urgent need to build fast in the aftermath of catastrophes quite often overrides any cultural concerns. As a result, the shelters provided in such circumstances are indistinct and impersonal. However, taking individual and cultural aspects into account might lead to a better identification of the population with their new environment, thereby minimizing the rupture caused in their lives. As the methodology to develop new housing systems is based on the idea of architectural precedents, choosing existing vernacular housing as a precedent permits the incorporation of cultural aspects and facilitates an identification of people with the new housing. In the Haiti case study, we chose as a precedent a housetype called ‚Äúgingerbread houses‚Äù, which includes a wide range of houses from wealthy to very humble ones. Although the proposed design system was inspired by these houses, it was decided to adopt a contemporary take. The methodology to devise the new type was based on two ideas: precedents and transformations in design. In architecture, the use of precedents provides designers with typical solutions for particular problems and it constitutes a departing point for a new design. In our case, the precedent is an existing housetype. It has been shown (Duarte, 2001) that a particular housetype can be encoded by a shape grammar (Stiny, 1980) forming a design system. Studies in shape grammars have shown that the evolution of one style into another can be described as the transformation of one shape grammar into another (Knight, 1994). The used methodology departs takes off from these ideas and it comprises the following steps (Duarte, 2008): (1) Selection of precedents, (2) Derivation of an archetype; (3) Listing of rules; (4) Derivation of designs; (5) Cataloguing of solutions; (6) Derivation of tailored solution.
keywords	Mass customization, Housing, Building system, Sustainable construction, Life cycle energy consumption, Shape grammar
series	CAAD Futures
email
last changed	2012/02/11 19:21

_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	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	ddss9415
id	ddss9415
authors	Cajati, Claudio
year	1994
title	Innovative Expert Systems With Hypertextual User Interfaces: A Special Support for the Building Recovering Project
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	In this paper, first of all a short account on the peculiarity of knowledge in the domain of Architectural and Building Project, particularly in the Building Recovering Project is given. Thatmeans to focus the concept of "degree of authority" of different types of knowledge with regard to project: regulations; specialist literature having in practice the value of self-regulation; technical updating; exemplary design cases; warnings; analysis methods; heuristics; orientating references. Consequently, the different roles of two basic design & decision support systems, that is expert systems and hypertexts, are considered. The former seem to be quite fit for representing information and knowledge linked to a clear "authority", the one of experts in a certain domain; the latter seem to be quite fit for illustrating the interdisciplinary complexity, different historicinterpretations, various analogous references, and so on. Afterwards, the limits of expert systems based on the logic "true-false" are underlined, and the perspective of expert systems based on more sophisticated and appropriate rules and metarules is proposed. At last, the possible structure of such an innovative expert system, with a hypertextual interface, in the domain of Building Recovering Project is exemplified.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9416
id	ddss9416
authors	Campbell, Noel and O'Reilly, Thomas
year	1994
title	GIS: Science or Tool - The Built Environment Perspective
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	This paper attempts to locate GIS in the context of the built environment professions, rather than in the context of computer science, recognizing the integrated but limiting approach of viewingGIS from a strictly computer / spatial science perspective. The paper reviews the conflicts and tensions appearing in the GIS debate seeing them as reflecting the differences between the perceptions and interests of software developers and those of the professions. The "spatial science versus professional tool" dilemma is therefore critically assessed. Science is identified as the dominant paradigm within which GIS development has taken place. This encompasses the emphasis on GIS as spatial science; the interest in particular forms of spatial analysis; a narrow approach to the idea of information; the debate about the appropriate emphasis on the location for GIS in undergraduate education. The interests and activities of the professions cannot be encompassed within the pre-existing science paradigm. The paper identifies the interest the professions have had in broad geographical issues (as distinct from narrow spatial issues). It recognizes the different conventions and procedures used in recording and using geographical information, not all of them objective or scientific. It views the computer, not as a "scientific engine", but as a modern medium for representing and analyzing information. This includes storage and analysis, both internally (algorithmic manipulation) and outside (qualitative manipulation, beyond formal -"computer"- logic). This approach suggests a framework for research of a nature more sympathetic to the needs of the built environment professions in particular and an agenda which would include an examination of: (i) the conventions and procedures used in the professions to collect, store and process information and how these translate to computer technology; (ii) the types of software used and the way procedures may be accommodated by combining and integrating packages; (iii) the dynamism of GIS development (terms such as "dedicated", "mainframe", "PC-based", "distributed", "pseudo-", etc. are identified as indicativeof the need for professions-based approaches to GIS development); (iv) a critique of "information" (modelling of information flows within the professions, may yield valuable insights into the (modelling of information flows within the professions , may yield valuable insights into the similarity of requirements for a variety of "workplace scenarios").
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9417
id	ddss9417
authors	Chan, Chiu-Shui
year	1994
title	A Hypermedia Tutoring for Multimedia Tasks
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Using a computer or a software package involves procedural knowledge, or knowledge of a series of instructions. When a user recognizes the appropriate computer commands (the method) in acertain application, it is assumed that the user is capable of doing a computer-related or computeraided task. Based on this assumption, the current project explores methods of developing a computer tutoring system to convey know-how efficiently. The purpose of the project is to make novices familiar with machines and with techniques of handling multimedia for presenting design concepts. A teaching tool is designed that combines images, sounds, and movements to create an effective learning environment. The tool is a hypermedia system consisting of different software and hardware components implemented in the HyperCard. How to manipulate different media will be taught by means of cross-references, graphic display, text explanations, and background music. Hopefully, this project will suggest some useful methods for teaching CAD to novice computer users.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9420
id	ddss9420
authors	Christie, Colin Ian
year	1994
title	User Interfaces and Systems for Remote Design Working on ISDN Systems
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	This paper will discuss the requirements and possible configurations of user interfaces suitable for remote working multi-disciplinary design practices. Telecom companies throughout Europe are making heavy investments in digital communication technology (ISDN). The networks being created will form a standard method of high speed data transfer which can be readily accessed by any computer hardware platform. There are great opportunities for remote working by design groups, not simply sharing data but also interactive working and video communications. Digital communications provide the electronic arterial system to the new field of remote computing,whilst cheap and effective hardware and software support systems provide readily usable platforms on which to build remote multi-disciplinary design practices where the exploitation of specialistknowledge and skills is not limited by traditional methods of communication. ISDN networks allow real time video, voice and design software interaction - indeed, everything except the designer's physical presence. However as with all computer technology and indeed communications technology the user interface which gives access and control is vitally important. The user interface should provide the following features: be transparent to the user and simple and reliable to operate; allow an interactive window/s into the remote site's design information whatever the type of application being dealt with; carry out data compression, file transfer and file management procedures with minimum input from the user; cause no conflicts with design software or secondary applications;be able to access different platforms.
series	DDSS
last changed	2003/08/07 16:36

_id	ddss9422
id	ddss9422
authors	Daru, Roel and Snijder, Philip
year	1994
title	Sketch-Trigger: A Specification for a Form Generator and Design Analysis Toolbox for Architectural Sketching
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	In order to develop design and decision support techniques in the early sketch design phases, weshould (1) experience and (2) observe real behaviour in practice, (3) transform observations intoideas for improvement, (4) develop behaviour models to explain the sketch design activities and(5) to evaluate between the proposals, (6) decide between the alternatives, (7) implement theselected option in a supporting tool. Our paper reports about the results of step 3 in particular inthe first phase of a Ph D project, started this year. Our main objective is to amplify the effects ofthe sketch as a very effective instrument to generate original forms and to stimulate the mind to discover new shapes and meanings in the roughly sketched patterns. Instead of considering the sketch only as a representation of what the designer has in mind as is usually assumed in CAD systems, we see sketching as form activation. Thus, we want also to offer triggering images to spark off the imagination of the designer while generating images which are practically impossibleto create by hand and certainly not at short notice. The main improvement proposed is the use of an evolutionary form breeding system: one or more sketched parent images (either ready-made'partis' or basic schemes drafted by the designer) presented in the centre of the screen, will generate surrounding mutated children as defined at random but constrained by default or customization of the available transformations. By selecting one or more children a next generation will be produced in the same way. At all times the designer can introduce or reduce constraints. To complete the usually offered 'classical' symmetrical, spatial and logical operations,we want to introduce dis-functional operations like dislocation, explosion, deformation, anti-logic etc, in short all kinds of antagonistic operations, among them the transformations applied indeconstructionist and post-modern design. Our expectation is that these operations will correspond roughly to the 'move' pertaining to a design entity as the operational unit most appropriate for design behaviour research, in particular the analysis of the chunking and parsing behaviour of the designer. The applicability of the 'move' approach has been shown experimentally by Habraken and others. Goldschmidt has abandoned the usual typology approach of protocolanalysis based on moves and concentrated on the linking of moves, but has been hampered by the lack of a good representational instrument. This brings us to the representation of moves and linkages as a research instrument. The 'linkograph' approach as proposed by Goldschmidt is a first step towards a graphical representation of the designers associative reasoning mode, necessary for tracking the heuristics of designers at the most basic level, but its practical implementation remained as yet incredibly laborious. What is proposed here is an instrument and approach which makes such registration and analysis possible within a structured software environment.
series	DDSS
email
last changed	2003/08/07 16:36

_id	ddss9423
id	ddss9423
authors	Dasgupta, Shubhagato
year	1994
title	A Decision Support System for Architects in the Rural Housing Situation in India
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	Even a conservative estimate of the rural housing shortfall in India, is 20.6 million houses. There are three contexts under which external intervention is necessary, the endemic low housing qualityof the poor and landless, the major development projects where displaced people have to be rehoused, and rehabilitation of victims of natural disasters such as the periodic floods or unprecedented earthquakes like the recent one in Maharashtra, Central India, where we successfully applied this method. Interventions by government agencies or charity organisations, have often failed to achieve a viable sustainable habitat, primarily because of misplaced perceptions in need assessment, resulting in disrupted societies. Tailored to the Indian rural housing scenario, the study developed a participatory interface to aid architects and planners in information gathering and systematization of need assessment for input into the designing and decision-making process. The method based on field tested participatory information collection games consists of threemajor stages. The first stage involves user-interactive documentation of the baseline data. The second, involves participatory group analysis and evaluation of issues coupled with rapid interactive verification of information collected in terms ofspatial organisations and production mechanisms. The third is a tool for rapid systematised retrieval of information, for synthesis into preparation of an "user needs statement".
series	DDSS
last changed	2003/08/07 16:36

_id	ddss9424
id	ddss9424
authors	Dave, Bharat and Schmitt, Gerhard
year	1994
title	Information Systems for Spatial Data
source	Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary	This paper describes a continuing research project aimed at the development of a prototype information system to represent and manipulate models of urban settlements. This inter-disciplinaryproject involves researchers and teachers in the fields of urban design, photogrammetry and CAD. Based upon the requirements identified by the urban design team, the photogrammetry teamused aerial imagery to produce accurate digital models of various features of urban settlements. The models comprise natural features like terrain data, water and vegetation systems, and man made features like transportation networks, land parcels, and built-up volumes. These data are represented in the three dimensions, and they are further linked with nongraphic attributes stored in an external database schemata. The architecture of the system under development has been described previously. In this paper, we focus on the generation of thematic abstractions. The working hypothesis for our current work is that (i) to enable reliable decision-making in urbandesign contexts, we require digital models that are complete and accurate at a certain degree of resolution, and (ii) during various stages in the decision-making, we need useful abstractionswhich encode only the salient information and no more. In more specific terms, we are interested in finding computational means to automatically generate schematic generalizations of data that succinctly represent some information without recomputing or displaying all the vectrs and other details. In this papar we present some of the strategies that we employ to support such operations in our system and also present graphic examples that demonstrate the potential andlimitations of our approach.
series	DDSS
email
last changed	2003/08/07 16:36

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