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	98e7
authors	Coppola, Carlo
year	1999
title	Computers and Creativity in Architecture
doi	https://doi.org/10.52842/conf.ecaade.1999.595
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 595-602
summary	The main purpose of this teaching and research project is to define those principles capable of determining a possible approach to computer-aided design for architecture - not seen as as a mere tool but as a way of supporting decision-making.
keywords	Decision-making, Expert Systems, Urban Development, Building Types
series	eCAADe
email
last changed	2022/06/07 07:56

_id	349e
authors	Durmisevic, Sanja
year	2002
title	Perception Aspects in Underground Spaces using Intelligent Knowledge Modeling
source	Delft University of Technology
summary	The intensification, combination and transformation are main strategies for future spatial development of the Netherlands, which are stated in the Fifth Bill regarding Spatial Planning. These strategies indicate that in the future, space should be utilized in a more compact and more efficient way requiring, at the same time, re-evaluation of the existing built environment and finding ways to improve it. In this context, the concept of multiple space usage is accentuated, which would focus on intensive 4-dimensional spatial exploration. The underground space is acknowledged as an important part of multiple space usage. In the document 'Spatial Exploration 2000', the underground space is recognized by policy makers as an important new 'frontier' that could provide significant contribution to future spatial requirements.In a relatively short period, the underground space became an important research area. Although among specialists there is appreciation of what underground space could provide for densely populated urban areas, there are still reserved feelings by the public, which mostly relate to the poor quality of these spaces. Many realized underground projects, namely subways, resulted in poor user satisfaction. Today, there is still a significant knowledge gap related to perception of underground space. There is also a lack of detailed documentation on actual applications of the theories, followed by research results and applied techniques. This is the case in different areas of architectural design, but for underground spaces perhaps most evident due to their infancv role in general architectural practice. In order to create better designs, diverse aspects, which are very often of qualitative nature, should be considered in perspective with the final goal to improve quality and image of underground space. In the architectural design process, one has to establish certain relations among design information in advance, to make design backed by sound rationale. The main difficulty at this point is that such relationships may not be determined due to various reasons. One example may be the vagueness of the architectural design data due to linguistic qualities in them. Another, may be vaguely defined design qualities. In this work, the problem was not only the initial fuzziness of the information but also the desired relevancy determination among all pieces of information given. Presently, to determine the existence of such relevancy is more or less a matter of architectural subjective judgement rather than systematic, non-subjective decision-making based on an existing design. This implies that the invocation of certain tools dealing with fuzzy information is essential for enhanced design decisions. Efficient methods and tools to deal with qualitative, soft data are scarce, especially in the architectural domain. Traditionally well established methods, such as statistical analysis, have been used mainly for data analysis focused on similar types to the present research. These methods mainly fall into a category of pattern recognition. Statistical regression methods are the most common approaches towards this goal. One essential drawback of this method is the inability of dealing efficiently with non-linear data. With statistical analysis, the linear relationships are established by regression analysis where dealing with non-linearity is mostly evaded. Concerning the presence of multi-dimensional data sets, it is evident that the assumption of linear relationships among all pieces of information would be a gross approximation, which one has no basis to assume. A starting point in this research was that there maybe both linearity and non-linearity present in the data and therefore the appropriate methods should be used in order to deal with that non-linearity. Therefore, some other commensurate methods were adopted for knowledge modeling. In that respect, soft computing techniques proved to match the quality of the multi-dimensional data-set subject to analysis, which is deemed to be 'soft'. There is yet another reason why soft-computing techniques were applied, which is related to the automation of knowledge modeling. In this respect, traditional models such as Decision Support Systems and Expert Systems have drawbacks. One important drawback is that the development of these systems is a time-consuming process. The programming part, in which various deliberations are required to form a consistent if-then rule knowledge based system, is also a time-consuming activity. For these reasons, the methods and tools from other disciplines, which also deal with soft data, should be integrated into architectural design. With fuzzy logic, the imprecision of data can be dealt with in a similar way to how humans do it. Artificial neural networks are deemed to some extent to model the human brain, and simulate its functions in the form of parallel information processing. They are considered important components of Artificial Intelligence (Al). With neural networks, it is possible to learn from examples, or more precisely to learn from input-output data samples. The combination of the neural and fuzzy approach proved to be a powerful combination for dealing with qualitative data. The problem of automated knowledge modeling is efficiently solved by employment of machine learning techniques. Here, the expertise of prof. dr. Ozer Ciftcioglu in the field of soft computing was crucial for tool development. By combining knowledge from two different disciplines a unique tool could be developed that would enable intelligent modeling of soft data needed for support of the building design process. In this respect, this research is a starting point in that direction. It is multidisciplinary and on the cutting edge between the field of Architecture and the field of Artificial Intelligence. From the architectural viewpoint, the perception of space is considered through relationship between a human being and a built environment. Techniques from the field of Artificial Intelligence are employed to model that relationship. Such an efficient combination of two disciplines makes it possible to extend our knowledge boundaries in the field of architecture and improve design quality. With additional techniques, meta know/edge, or in other words "knowledge about knowledge", can be created. Such techniques involve sensitivity analysis, which determines the amount of dependency of the output of a model (comfort and public safety) on the information fed into the model (input). Another technique is functional relationship modeling between aspects, which is derivation of dependency of a design parameter as a function of user's perceptions. With this technique, it is possible to determine functional relationships between dependent and independent variables. This thesis is a contribution to better understanding of users' perception of underground space, through the prism of public safety and comfort, which was achieved by means of intelligent knowledge modeling. In this respect, this thesis demonstrated an application of ICT (Information and Communication Technology) as a partner in the building design process by employing advanced modeling techniques. The method explained throughout this work is very generic and is possible to apply to not only different areas of architectural design, but also to other domains that involve qualitative data.
keywords	Underground Space; Perception; Soft Computing
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	c6db
authors	Heylighen, Ann
year	2000
title	In Case of Architectural Design. Critique and Praise of Case-Based Design in Architecture
source	Dissertation - Doct. Toegepaste wetenschappen, KU Leuven, Fac. Toegepaste wetenschappen, Dep. architectuur, stedebouw en ruimtelijke ordening (ISBN 90-5682-248-9)
summary	Architects are said to learn design by experience. Learning design by experience is the essence of Case-Based Design (CBD), a sub-domain of Artificial Intelligence. Part I critically explores the CBD approach from an architectural point of view, tracing its origins in the Theory of Dynamic Memory and highlighting its potential for architectural design. Seven CBD systems are analysed, experienced architects and design teachers are interviewed, and an experiment is carried out to examine how cases affect the design performance of architecture students. The results of this exploration show that despite its sound view on how architects acquire (design) knowledge, CBD is limited in important respects: it reduces architectural design to problem solving, is difficult to implement and has to contend with prejudices among the target group. With a view to stretching these limits, part II covers the design, implementation and evaluation of DYNAMO (Dynamic Architectural Memory On-line). This Web-based design tool tailors the CBD approach to the complexity of architectural design by effecting three transformations: extending the concern with design products towards design processes, turning static case bases into dynamic memories and upgrading users from passive case consumers to active case-based designers.
keywords	Architectural Design; Case-Based Design
series	thesis:PhD
email
last changed	2002/12/14 19:29

_id	ddssar0014
id	ddssar0014
authors	Janssen, P., Frazer, J. and Ming-xi, T.
year	2000
title	Evolutionary design systems: a conceptual framework for the creation of generative processes
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	This paper presents an conceptual framework for the construction of generative mapping processes as a basis for creating active design tools in the domain of architecture. Such generative processes are seen as key components within evolutionary systems that manipulate populations of alternative solutions in order to discover previously unexplored possibilities. Solutions are represented in two forms: as highly encoded genotypes referred to as design seeds and as decoded phenotypes referred to as design proposals. The generative process maps the design seed to the design proposal. The discussion of generative processes is in two parts. In the first part it is argued that any generative process that aims to create a wide range of solutions that differ from each other in fundamental ways must focus on a limited subcategory of possible designs. It is proposed that the endeavour to create active design tools demands that the focus be on the designer's highly personalised style, called a design-schema. The second part discusses how to uncover the essence of an architectural design-schema. In particular, it is argued that implicit and familiar aspects of buildings must be scrutinised in order to reveal the knowledge that is essential to capturing and codifying a design-schema. A range of rationalisations and conceptualisations of built form are presented with examples to illustrate possible routes of analysis. Finally, in conclusion, the possibility of discovering universal generators common to many divers generative processes are discussed.
series	DDSS
last changed	2003/08/07 16:36

_id	ddssar0023
id	ddssar0023
authors	Jens Pohl, Art Chapman, and Kym Jason Pohl
year	2000
title	Computer-aided design systems for the 21st century: some design guidelines
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	This paper proposes nine design principles for a new generation of computer-aided design (CAD) systems that actively support the decision making and problem solving activities of environmental design. Foremost among these are: a meaningful internal object-based representation of the artifact being designed within its environmental context; a collaborative problem solving paradigm in which the human designer and the computer form a complementary partnership; and, the notion of decision-support tools rather than predefined solutions. Two prototype computer-aided design systems implemented by the CAD Research Center that embody most of these concepts are described. ICADS (Intelligent Computer-Aided Design System) incorporates multiple expert agents in domains such as natural and artificial lighting, noise control, structural system selection, climatic determinants, and energy conservation. Given a particular building design context, the agents in ICADS draw upon their own expertise and several knowledgebases as they monitor the actions of the human designer and collaborate opportunistically. KOALA (Knowledge-Based Object-Agent Collaboration) builds on the multi-agent concepts embodied in ICADS by the addition of two kinds of agents. Mentor agents represent the interests of selected objects within the ontology of the design environment. In the implemented KOALA system building spaces are represented by agents capable of collaborating with each other, with domain agents for the provision of expert services, and with the human designer. Facilitator agents listen in on the communications among mentor agents to detect conflicts and moderate arguments. While both of these prototype systems are limited in scope by focussing on the earliest design stages and restricted in their understanding of the inherent complexity of a design state, they nevertheless promise a paradigm shift in computer-aided design.
series	DDSS
last changed	2003/08/07 16:36

_id	ddssar0015
id	ddssar0015
authors	Koutamanis, Alexander
year	2000
title	Recognition of spatial grouping in rectangular arrangements
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	Rectangular arrangements are an efficient technique for generating an exhaustive catalogue of a class of designs. Moreover, they offer the possibility of retrieving designs from such a catalogue on the basis of geometric or topological features. The paper describes an extension of the possibilities of rectangular arrangements in indexing and retrieving catalogues of architectural floor plans through the recognition of spatial grouping. Using an adaptation of the chain code, each space in a shape arrangement is labeled in terms of its bilateral geometric relationships with contiguous spaces. This means that each space is maximally labeled as many times as the number of its contiguous spaces. The labels of a space are ordered on the basis of a priority list that reflects the stylistic preferences of the particular design class. Grouping of spaces uses the ordered space labels as criteria. The groups returned by this process agree with human intuitive perception of spatial grouping in the floor plan, as well as with expert architectural knowledge. For example, Palladian floor plans are consistently grouped into a central space group flanked by two symmetric space groups.
series	DDSS
last changed	2003/08/07 16:36

_id	60a7
authors	Monedero, Javier
year	2000
title	Parametric design: a review and some experiences
source	Automation in Construction 9 (4) (2000) pp. 369-377
summary	During the last few years there has been an extraordinary development of computer-aided tools intended to present or communicate the results of architectural projects. But there has not been a comparable progress in the development of tools intended to assist design to generate architectural forms in an easy and interactive way. Even worse, architects who use the powerful means provided by computers as a direct tool to create architectural forms are still an exception. Architecture continues to be produced by traditional means using the computer as little more than a drafting tool. The main reasons that may explain this situation can be identified rather easily, although there will be significant differences of opinion. In my opinion, it is a mistake trying to advance too rapidly and, for instance, proposing integrated design methods using expert systems and artificial intelligence while no adequate tools to generate and modify simple 3D-models are available. The modeling tools we have at the present moment are unsatisfactory. Their principal limitation is the lack of appropriate instruments to modify interactively the model once it has been created. This is a fundamental aspect in any design activity, where the designer is constantly going forward and backwards, re-elaborating once and again some particular aspect of the model, or its general layout, or even coming back to a previous solution that had been temporarily abandoned. This paper presents a general summary of the actual situation and recent developments that may be incorporated to architectural design tools in a near future, together with some critical remarks about their relevance to architecture.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	a4e9
authors	Petrovic, Igor and Svetel, Igor
year	1999
title	From Number Cruncher to Digital Being: The Changing Role of Computer in CAAD
doi	https://doi.org/10.52842/conf.ecaade.1999.033
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 33-39
summary	The paper reflects on a thirteen-year period of CAAD research and development by a small group of researchers and practitioners. Starting with simple algorithmic drafting programmes, the work transcended to expert systems and distributed artificial intelligence, using computers as tools. The research cycle is about to begin afresh; computers in the next century shall not be detached entities but the extensions of man. The computer shall be the medium that will enable a designer to be what he/she really is. This future has already begun.
keywords	History of CAAD, CAAD Design Paradigms, CAADfuture
series	eCAADe
email
last changed	2022/06/07 08:00

_id	83cb
authors	Telea, Alexandru C.
year	2000
title	Visualisation and simulation with object-oriented networks
source	Eindhoven University of Technology
summary	Among the existing systems, visual programming environments address best these issues. However, producing interactive simulations and visualisations is still a difficult task. This defines the main research objective of this thesis: The development and implementation of concepts and techniques to combine visualisation, simulation, and application construction in an interactive, easy to use, generic environment. The aim is to produce an environment in which the above mentioned activities can be learnt and carried out easily by a researcher. Working with such an environment should decrease the amount of time usually spent in redesigning existing software elements such as graphics interfaces, existing computational modules, and general infrastructure code. Writing new computational components or importing existing ones should be simple and automatic enough to make using the envisaged system an attractive option for a non programmer expert. Besides this, all proven successful elements of an interactive simulation and visualisation environment should be provided, such as visual programming, graphics user interfaces, direct manipulation, and so on. Finally, a large palette of existing scientific computation, data processing, and visualisation components should be integrated in the proposed system. On one hand, this should prove our claims of openness and easy code integration. On the other hand, this should provide the concrete set of tools needed for building a range of scientific applications and visualisations. This thesis is structured as follows. Chapter 2 defines the context of our work. The scientific research environment is presented and partitioned into the three roles of end user, application designer, and component developer. The interactions between these roles and their specific requirements are described and lead to a more precise formulation of our problem statement. Chapter 3 presents the most used architectures for simulation and visualisation systems: the monolithic system, the application library, and the framework. The advantages and disadvantages of these architectural models are then discussed in relation with our problem statement requirements. The main conclusion drawn is that no single existing architectural model suffices, and that what is needed is a combination of the features present in all three models. Chapter 4 introduces the new architectural model we propose, based on the combination of object-orientation in form of the C++ language and dataflow modelling in the new MC++ language. Chapter 5 presents VISSION, an interactive simulation and visualisation environment constructed on the introduced new architectural model, and shows how the usual tasks of application construction, steering, and visualisation are addressed. In chapter 6, the implementation of VISSION’s architectural model is described in terms of its component parts. Chapter 7 presents the applications of VISSION to numerical simulation, while chapter 8 focuses on its visualisation and graphics applications. Finally, chapter 9 concludes the thesis and outlines possible direction for future research.
keywords	Computer Visualisation
series	thesis:PhD
email
last changed	2003/02/12 22:37

_id	41e5
authors	Abendroth, M., Decock, J. and Mestaoui, N.
year	2000
title	O_1:// the hypertextu(r)al matrix
source	SIGraDi’2000 - Construindo (n)o espacio digital (constructing the digital Space) [4th SIGRADI Conference Proceedings / ISBN 85-88027-02-X] Rio de Janeiro (Brazil) 25-28 september 2000, pp. 75-76
summary	Founded in 1995 LAB[au], laboratory for architecture and urbanism, links theoretic research LAB[a+u] to concrete works of conception and realisations LA.BAU. LAB[au] elaborates a “hyperdesign” investigating the implications of new technologies of communication and computation in spatiotemporal and social processes and their forms of representation as architecture and urbanism. The transposition of the hypertext model to architectural and urban concepts question the mutation of the spatial and semantic construct of space. The definition of architecture as a code is based on “glocal” systems according to the processes of computation and communication.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	f08d
authors	Abrahamson, S., Wallace, D., Senin, N. and Sferro, P.
year	2000
title	Integrated design in a service marketplace
source	Computer-Aided Design, Vol. 32 (2) (2000) pp. 97-107
summary	This paper presents a service marketplace vision for enterprise-wide integrated design modeling. In this environment, expert participants and product developmentorganizations are empowered to publish their geometric design, CAE, manufacturing, or marketing capabilities as live services that are operable over the Internet. Theseservices are made available through a service marketplace. Product developers, small or large, can subscribe to and flexibly inter-relate these services to embody adistributed product development organization, while simultaneously creating system models that allow the prediction and analysis of integrated product performance. It ishypothesized that product development services will become commodities, much like many component-level products are today. It will be possible to rapidly interchangeequivalent design service providers so that the development of the product and the definition of the product development organization become part of the same process.Computer-aided design tools will evolve to facilitate the publishing of live design services. A research prototype system called DOME is used to illustrate the concept and apilot study with Ford Motor Company is used in a preliminary assessment of the vision.
keywords	Integrated Modeling, System Modeling, Design Service Marketplace
series	journal paper
email
last changed	2003/05/15 21:33

_id	eb8a
authors	Achten, H., De Vries, B. and Jessurun, J.
year	2000
title	DDDOOLZ. A Virtual Reality Sketch Tool for Early Design
doi	https://doi.org/10.52842/conf.caadria.2000.451
source	CAADRIA 2000 [Proceedings of the Fifth Conference on Computer Aided Architectural Design Research in Asia / ISBN 981-04-2491-4] Singapore 18-19 May 2000, pp. 451-460
summary	This paper presents DDDoolz, a desktop-VR three-dimensional voxel sketchtool. DDDoolz is developed in the Design Systems Group to explore the use of Virtual Reality technology in the early design stage. The aim is to offer a sketch-like environment in VR with an unobtrusive interface. The paper presents DDDoolz, how it is used in education and with partners in architectural practice, and some future developments.
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	e336
authors	Achten, H., Roelen, W., Boekholt, J.-Th., Turksma, A. and Jessurun, J.
year	1999
title	Virtual Reality in the Design Studio: The Eindhoven Perspective
doi	https://doi.org/10.52842/conf.ecaade.1999.169
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 169-177
summary	Since 1991 Virtual Reality has been used in student projects in the Building Information Technology group. It started as an experimental tool to assess the impact of VR technology in design, using the environment of the associated Calibre Institute. The technology was further developed in Calibre to become an important presentation tool for assessing design variants and final design solutions. However, it was only sporadically used in student projects. A major shift occurred in 1997 with a number of student projects in which various computer technologies including VR were used in the whole of the design process. In 1998, the new Design Systems group started a design studio with the explicit aim to integrate VR in the whole design process. The teaching effort was combined with the research program that investigates VR as a design support environment. This has lead to increasing number of innovative student projects. The paper describes the context and history of VR in Eindhoven and presents the current set-UP of the studio. It discusses the impact of the technology on the design process and outlines pedagogical issues in the studio work.
keywords	Virtual Reality, Design Studio, Student Projects
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ddssar0001
id	ddssar0001
authors	Achten, Henri and Leeuwen, Jos van
year	2000
title	Towards generic representations of designs formalised as features
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	Feature-Based Modelling (FBM) is an information modelling technique that allows the formalisation of design concepts and using these formal definitions in design modelling. The dynamic nature of design and design information calls for a specialised approach to FBM that takes into account flexibility and extensibility of Feature Models of designs. Research work in Eindhoven has led to a FBM framework and implementation that can be used to support design.. Feature models of a design process has demonstrated the feasibility of using this information modelling technique. To develop the work on FBM in design, three tracks are initiated: Feature model descriptions of design processes, automated generic representation recognition in graphic representations, and Feature models of generic representations. The paper shows the status of the work in the first two tracks, and present the results of the research work.
series	DDSS
last changed	2003/11/21 15:15

_id	01c0
authors	Af Klercker, Jonas
year	2000
title	Modelling for Virtual Reality in Architecture
doi	https://doi.org/10.52842/conf.ecaade.2000.209
source	Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 209-213
summary	CAAD systems are using object modelling methods for building databases to make information available. Object data must then be made useful for many different purposes in the design process. Even if the capacity of the computer will allow an almost unlimited amount of information to be transformed, the eye does not make the transformations in the same “simple” mathematical way. Trained architects have to involve in an inventive process of finding ways to “harmonize” this new medium with the human eye and the architect’s professional experience. This paper will be an interimistic report from a surveying course. During the spring semester 2000 the CAAD division of TU-Lund is giving a course “Modelling for VR in Architecture”. The students are practising architects with experience from using object modelling CAAD. The aims are to survey different ways to use available hard- and software to create VR-models of pieces of architecture and evaluate them in desktop and CAVE environments. The architect is to do as much preparation work as possible with his CAAD program and only the final adjustments with the special VR tool.
keywords	CAAD, VR, Modelling, Spatial Experience
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:54

_id	449f
authors	Aish, Robert
year	2000
title	Collaborative Design using Long Transactions and "Change Merge"
doi	https://doi.org/10.52842/conf.ecaade.2000.107
source	Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 107-111
summary	If our goal is implement collaborative engineering across temporal, spatial and discipline dimensions, then it is suggested that we first have to address the necessary pre-requisites, which include both the deployment of "enterprise computing" and an understanding of the computing concepts on which such enterprise systems are based. This paper will consider the following computing concepts and the related concepts in the world of design computing, and discuss how these concepts have been realised in Bentley SystemsÕ ProjectBank collaborative engineering data repository: Computing Concept Related Design Concept Normalisation Model v. Report (or Drawing) Transaction Consistency of Design Long Transaction Parallelisation of Design Change Merge Coordination (synchronisation) Revisions Coordination (synchronisation) While we are most probably familiar with the applications of existing datadase concepts (such as Normalisation and Transaction Management) to the design process, the intent of this paper to focus
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:54

_id	456a
authors	Alvarado, R.G., Parra, J.C., Vergara, R.L. and Chateau, H.B.
year	2000
title	Architectural References to Virtual Environments Design
doi	https://doi.org/10.52842/conf.ecaade.2000.151
source	Promise and Reality: State of the Art versus State of Practice in Computing for the Design and Planning Process [18th eCAADe Conference Proceedings / ISBN 0-9523687-6-5] Weimar (Germany) 22-24 June 2000, pp. 151-155
summary	Based on a comparison between the perception of digital and real construction, the development of virtual systems and the review of additional sources, this paper states some differences between the design of virtual environments and architectural spaces. Virtual-reality technologies provide advanced capabilities to simulate real situations, and also to create digital worlds not referred to physical places, such as imaginary landscapes or environments devoted to electronic activities, like entertainment, learning or commerce. Some on-line services already use 3D-stages, resembling building halls and domestic objects, and several authors have mentioned virtual modeling as a job opportunity to architects. But it will argue in this paper that the design of those environments should consider their own digital characteristics. Besides, the use of virtual installations on networks impells a convergence with global media, like Internet or TV. Virtual environments can be a 3Devolution of communicational technologies, which have an increasing participation in culture, reaching a closer relationship to contemporary architecture.
keywords	Virtual Environments, Spatial Perception, Design Methodology
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:54

_id	ddssar0002
id	ddssar0002
authors	Aoki, Yoshitsugu and Inage, Makoto
year	2000
title	Linguistic Operation System for Design of Architectural Form
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	In a process of architectural design, an architect not only draws by himself/herself but also lets another person modify a design by given a linguistic instruction expressing how the design ought to be. In the case of utilization of CAD systems, it is useful if the system modifies the design according to the linguistic instruction. On the other hand, because of the recent increase of the opportunities of designing a building whose roof has complicated curved surface, it extremely takes labor to change the design. This paper proposes a linguistic operation system that modifies a design according to the linguistic instruction of the modification by the user to support design of a complicated form with curved surface. The proposed system is expected to be integrated with a CAD system. First, the system presents a perspective sketch of a designed form. From the values of the design variables that characterize the form in the system, the system calculates the position of the form in “the association image space.” Second, the designer puts a linguistic instruction i.e., words as like as “let it be more light” to modify the form. The words used for the instruction have the position in the association image space. In the association image space, the system moves the position of the form to a new position that gets to be near the position of the given word. The system calculates the values of the design variables of the form corresponding to the new position. We need a mapping from every vector representing the position of the changed form in the association image space to the corresponding vector representing the values of the design variables. To find the mapping, we construct a neural network system with three levels. Finally, the system presents a perspective sketch of changed form using the calculated values of design variables.
series	DDSS
last changed	2003/11/21 15:15

_id	86dc
authors	Aouad, G., and Price, A.D.F.
year	1993
title	An integrated system to aid the planning of concrete structures: introducing the system
source	The Int. Journal of Construction IT1(2), pp.1-14
summary	This paper reports on the development at Loughborough University of a CAD-based integrated model to aid the planning of in-situ concrete structures. The system development started after a review of the planning models currently available and after a detailed questionnaire survey undertaken amongst the top UK and US contractors on the current status of planning techniques and information technology. The main aim of this system is to automate the planning process of in-situ concrete structures using data generated by CAD systems. So far, the integration of a CAD system (AutoCAD 10) and a computerized scheduling system (Artemis 2000) has been achieved on a typical IBM-PC. This enables the generation of network plans using AutoCAD which are then automatically transferred to the Artemis system for time and cost analyses.Traditionally, construction planners are faced with many conventional drawings and documents which are used to re-extract information relevant to their planning processes. Such an approach can be very inefficient as it involves data double-handling and is often error prone. In addition, current computerized construction planning applications are little more than the automation of manual formulations of plans. For example, data are fed into the planning system and computations are performed using either CPM (Critical Path Method) or PERT (Programme Evaluation and Review Technique). However, data relating to the planning process such as activity lists, resources requirements and durations are not automatically generated within the system. It would thus seem logical to devise a CAD-based integrated planning model which accepts data in its electronic format and involves some integration of the traditional planning approach. This paper introduces the proposed CAD-based integrated planning model and describes its different components. In addition, it discusses the system functional specifications and summarizes the main benefits and limitations of such a model.
series	journal paper
last changed	2003/05/15 21:45

_id	1071
authors	Asanowicz, Aleksander
year	1999
title	Evolution of Computer Aided Design: Three Generations of CAD
doi	https://doi.org/10.52842/conf.ecaade.1999.094
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 94-100
summary	This paper describes the three generations of CAD systems. The first generation of (primarily analytical) computer programmes really aided designing. These programmes were the tools for finding a functional solution in different areas of designing, from flat plans to the space organisation of a hospital. One of the shortcomings of these programmes was the lack of graphic interface. With time, however, this kind of interface was developed. As a result of this second generation of CAD systems the computer was transformed into a drafting machine and CAD meant Computer Aided Drafting. The main thesis of this consideration is that only now we have the chance to return to the idea of Computer Aided Design. One of the examples of these trends is the AVOCAAD programme in which Added Value of CAAD is analysed. The development of the third generation of CAD systems will be possible in the near future. Aiding the process of designing will demand the elaboration of new methods of using the computer at the early stages of this process. The computer should be used not for generating variants of functional solutions only but for also for the creation of 3D forms by 3D sketching. For this, the computer should be transformed from a tool into a medium; only then will designing become true Designing in Cyber Space.
keywords	Generations of CAAD, Design Process, Creation, Medium
series	eCAADe
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last changed	2022/06/07 07:54

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