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 11 of 11

_id 7a20
id 7a20
authors Carrara, G., Fioravanti, A.
year 2002
title SHARED SPACE’ AND ‘PUBLIC SPACE’ DIALECTICS IN COLLABORATIVE ARCHITECTURAL DESIGN.
source Proceedings of Collaborative Decision-Support Systems Focus Symposium, 30th July, 2002; under the auspices of InterSymp-2002, 14° International Conference on Systems Research, Informatics and Cybernetics, 2002, Baden-Baden, pg. 27-44.
summary The present paper describes on-going research on Collaborative Design. The proposed model, the resulting system and its implementation refer mainly to architectural and building design in the modes and forms in which it is carried on in advanced design firms. The model may actually be used effectively also in other environments. The research simultaneously pursues an integrated model of the: a) structure of the networked architectural design process (operators, activities, phases and resources); b) required knowledge (distributed and functional to the operators and the process phases). The article focuses on the first aspect of the model: the relationship that exists among the various ‘actors’ in the design process (according to the STEP-ISO definition, Wix, 1997) during the various stages of its development (McKinney and Fischer, 1998). In Collaborative Design support systems this aspect touches on a number of different problems: database structure, homogeneity of the knowledge bases, the creation of knowledge bases (Galle, 1995), the representation of the IT datum (Carrara et al., 1994; Pohl and Myers, 1994; Papamichael et al., 1996; Rosenmann and Gero, 1996; Eastman et al., 1997; Eastman, 1998; Kim, et al., 1997; Kavakli, 2001). Decision-making support and the relationship between ‘private’ design space (involving the decisions of the individual design team) and the ‘shared’ design space (involving the decisions of all the design teams, Zang and Norman, 1994) are the specific topic of the present article.

Decisions taken in the ‘private design space’ of the design team or ‘actor’ are closely related to the type of support that can be provided by a Collaborative Design system: automatic checks performed by activating procedures and methods, reporting of 'local' conflicts, methods and knowledge for the resolution of ‘local’ conflicts, creation of new IT objects/ building components, who the objects must refer to (the ‘owner’), 'situated' aspects (Gero and Reffat, 2001) of the IT objects/building components.

Decisions taken in the ‘shared design space’ involve aspects that are typical of networked design and that are partially present in the ‘private’ design space. Cross-checking, reporting of ‘global’ conflicts to all those concerned, even those who are unaware they are concerned, methods for their resolution, the modification of data structure and interface according to the actors interacting with it and the design phase, the definition of a 'dominus' for every IT object (i.e. the decision-maker, according to the design phase and the creation of the object). All this is made possible both by the model for representing the building (Carrara and Fioravanti, 2001), and by the type of IT representation of the individual building components, using the methods and techniques of Knowledge Engineering through a structured set of Knowledge Bases, Inference Engines and Databases. The aim is to develop suitable tools for supporting integrated Process/Product design activity by means of a effective and innovative representation of building entities (technical components, constraints, methods) in order to manage and resolve conflicts generated during the design activity.

keywords Collaborative Design, Architectural Design, Distributed Knowledge Bases, ‘Situated’ Object, Process/Product Model, Private/Shared ‘Design Space’, Conflict Reduction.
series other
type symposium
email
last changed 2005/03/30 16:25

_id 6279
id 6279
authors Carrara, G.; Fioravanti, A.
year 2002
title Private Space' and ‘Shared Space’ Dialectics in Collaborative Architectural Design
source InterSymp 2002 - 14th International Conference on Systems Research, Informatics and Cybernetics (July 29 - August 3, 2002), pp 28-44.
summary The present paper describes on-going research on Collaborative Design. The proposed model, the resulting system and its implementation refer mainly to architectural and building design in the modes and forms in which it is carried on in advanced design firms. The model may actually be used effectively also in other environments. The research simultaneously pursues an integrated model of the: a) structure of the networked architectural design process (operators, activities, phases and resources); b) required knowledge (distributed and functional to the operators and the process phases). The article focuses on the first aspect of the model: the relationship that exists among the various ‘actors’ in the design process (according to the STEP-ISO definition, Wix, 1997) during the various stages of its development (McKinney and Fischer, 1998). In Collaborative Design support systems this aspect touches on a number of different problems: database structure, homogeneity of the knowledge bases, the creation of knowledge bases (Galle, 1995), the representation of the IT datum (Carrara et al., 1994; Pohl and Myers, 1994; Papamichael et al., 1996; Rosenmann and Gero, 1996; Eastman et al., 1997; Eastman, 1998; Kim, et al., 1997; Kavakli, 2001). Decision-making support and the relationship between ‘private’ design space (involving the decisions of the individual design team) and the ‘shared’ design space (involving the decisions of all the design teams, Zang and Norman, 1994) are the specific topic of the present article.

Decisions taken in the ‘private design space’ of the design team or ‘actor’ are closely related to the type of support that can be provided by a Collaborative Design system: automatic checks performed by activating procedures and methods, reporting of 'local' conflicts, methods and knowledge for the resolution of ‘local’ conflicts, creation of new IT objects/ building components, who the objects must refer to (the ‘owner’), 'situated' aspects (Gero and Reffat, 2001) of the IT objects/building components.

Decisions taken in the ‘shared design space’ involve aspects that are typical of networked design and that are partially present in the ‘private’ design space. Cross-checking, reporting of ‘global’ conflicts to all those concerned, even those who are unaware they are concerned, methods for their resolution, the modification of data structure and interface according to the actors interacting with it and the design phase, the definition of a 'dominus' for every IT object (i.e. the decision-maker, according to the design phase and the creation of the object). All this is made possible both by the model for representing the building (Carrara and Fioravanti, 2001), and by the type of IT representation of the individual building components, using the methods and techniques of Knowledge Engineering through a structured set of Knowledge Bases, Inference Engines and Databases. The aim is to develop suitable tools for supporting integrated Process/Product design activity by means of a effective and innovative representation of building entities (technical components, constraints, methods) in order to manage and resolve conflicts generated during the design activity.

keywords Collaborative Design, Architectural Design, Distributed Knowledge Bases, ‘Situated’ Object, Process/Product Model, Private/Shared ‘Design Space’, Conflict Reduction.
series other
type symposium
email
last changed 2012/12/04 07:53

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

_id ddss9439
id ddss9439
authors Halin, G., Bignon, J.C. and Leonard, D.
year 1994
title Contributions of a Complex Object Retrieval Model to a Dynamical Architectural Design Process
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary When a new Architectural Construction Project starts, all the steps of the technical design are completely redefined. The experience gained in old projects is not easily reusable. Only personal experience of each project member is relevant. The global experience of a project is difficult to manage and to define. The designers of new project have many things to learn from previous experiences that may or not be good. The use of experiences may avoid either looking for asolution to previously resolved problems or making the same mistakes. To realise experience reuse during an architectural technical design we proposed to combine two actual research works:(i) a Dynamical Architectural Construction Process (DACP), (ii) a Complex Object Management System (COMS). The first work puts forward an original construction process based on a model that uses a geometrical definition of an architectural object to produce the constructive definition of this same object. The original features of this model are: (i) the insertion of a logic level between the volume level of an architectural object and its element level, (ii) dynamic management of the different representations of an architectural object during its technical life cycle. The COMS capabilities concern memorisation and retrieval of complex objects. The use of classicalData Management Systems to store these objects is either impossible or unusable due to data dispersion. In our approach, an architectural experience is viewed as an complex object. The COMS manages an Object Base which contains different Architectural Construction Experiences in previous projects forms. At any time during the DACP, the designer can asked the COMS to retrieve a part or a whole of a previous project that illustrates its current technical state. Thearticle presents two research projects and a study of the contribution of experience reuse in a construction process.
series DDSS
email
last changed 2003/08/07 16:36

_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 ddss9471
id ddss9471
authors Oxman, Robert
year 1994
title The Reflective Eye: Visual Reasoning in the Sketch
source Second Design and Decision Support Systems in Architecture & Urban Planning (Vaals, the Netherlands), August 15-19, 1994
summary Despite recent advances in our understanding of design thinking, we still lack a comprehensive theoretical approach to cognitive processes in design and particularly to visual reasoning. Of scientific interest in its own right, understanding non-verbal reasoning is also relevant to a wide range of subjects in the area of visual data resources for designers. This paper presents research into visual reasoning through the study of cognitive acts and processes associated with design drawing. Employing case studies in the design sketch, a vocabulary is defined for describing phenomena of visual reasoning in design as they are revealed in the sketch. Classes of reasoning processes are proposed as strings of graphic acts of state transformation. A theoretical schema is developed which relates the individual act of visual reasoning manifested in the sketch, of sketch sequences, with larger global cognitive phenomena such as analogical or associative reasoning in design. Based upon this schema, a symbol system for these acts and processes is proposed as a coding technique in the observation, analysis and recording of non-verbal processes in design.
series DDSS
email
last changed 2003/08/07 16:36

_id 4f13
authors Ronchi, Alfredo M.
year 1994
title A Brief History of CAAD in Italy
doi https://doi.org/10.52842/conf.ecaade.1994.x.f3n
source The Virtual Studio [Proceedings of the 12th European Conference on Education in Computer Aided Architectural Design / ISBN 0-9523687-0-6] Glasgow (Scotland) 7-10 September 1994, p. 227
summary Twenty years of revolution, from the middle '70 to the middle '90. Many things have changed since the origins of computer graphics and computer aided design in architecture. We started teaching drafting on terminals which connected to mini computers, complex procedures or sets of graphics libraries working with keywords, vectors and storage screens. The next step was devoted to the discovery of workstations in the early '80's, where the user sat face on to the whole power of a multitasking system. At that time to use up to 16 time sharing processes running on the same work station seemed to have no practical use at all. Fortunately someone (ie Xerox PARC laboratories) at the same time started to develop the so-called GUI. Graphical user interface started a revolution in human/machine interface (ie Smalltalk). The desktop metaphor, the use of multiple windows and dialogues joined with icons and pop up menus let the user manage more applications and, even more important, created a standard in application/user interface (CUA). In the meantime focus had moved from hardware to software, systems being chosen from the software running. The true revolution we have seen starting from that base and involving an ever increasing number of users was the birth of PC based applications for CAAD. Generally speaking nowadays there are three main technologies concerning teaching: communication, multimedia and virtual reality. The first is the real base for future revolution. In the recent past we have started to learn how to manage information by computers. Now we can start to communicate and share information all over the world in real time. The new age opened by fax, followed by personal communication systems and networks is the entry point for a real revolution. We can work in the virtual office, meet in virtual space and cooperate in workgroups. ATM and ISDN based teleconferencing will provide a real working tool for many. The ever increasing number of e-mail addresses and network connections is carrying us towards the so called 'global village'. The future merger between personal digital assistant and personal communication will be fascinating. Multi & HyperMedia technology is, like a part of VR, a powerful way to share and transfer information in a structured form. We do not need to put things in a serial form removing links because we can transfer knowledge as is. Another interesting and fundamental aspect typical of VR applications is the capability to change cognitive processes from secondary (symbolic - reconstructive) to primary (perceptive - motory). In this way we can learn by direct experience, by experiment as opposed to reading books. All these things will affect not only ways of working but also ways of studying and teaching. Digital communications, multimedia and VR will help students, multimedia titles will provide different kinds of information directly at home using text, images, video clips and sounds. Obviously all those things will not substitute human relationship as a multimedia title does not compete against a book but it helps.

series eCAADe
last changed 2022/06/07 07:50

_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 9e13
authors Seward, D.W., Scott, J.N., Dixon, R., Findlay, J.D. and Kinniburgh, H.
year 1997
title The automation of piling rig positioning using satellite GPS
source Automation in Construction 6 (3) (1997) pp. 229-240
summary The paper is divided in two parts. Part one describes the Stent Automatic Pile Positioning and Recording system (SAPPAR) which was launched in November 1994. The system utilises a Trimble satellite global positioning system (GPS) to assist rig drivers in accurately positioning the rig over a pile position without the need for setting out. Advantages of the system include: cost savings by removing the need for site survey staff; faster set-up times over pile positions; increased accuracy - the system can reliably position the rig to within ± 25 mm; removal of problems resulting from damage to setting out pins; constant monitoring of pile position; and Links to CAD for data input and as-built drawings. Part two describes a further development of the system in collaboration with Lancaster University and Casagrande, the Italian rig manufacturer. The aim of the research is to fully automate the final positioning process. This represents one of the first uses of GPS for real-time automation. The system hardware components include: ultra-compact PC104 processor cards for a compact and robust embedded system; minimum sensing on the rig to minimise cost and maximise robustness; and limit sensors to facilitate on-board safety. The control algorithms were developed on a fifth-scale model in the laboratory using an innovative and new approach to the design of model based control systems. The importance of careful consideration of safety issues is stressed and conclusions are drawn based on the early findings from preliminary field trials.
series journal paper
more http://www.elsevier.com/locate/autcon
last changed 2003/05/15 21:23

_id ecfa
authors Sillion, F.X. and Peuch, C.
year 1994
title Radiosity & Global Illumination
source Morgan Kaufmann Publishers, Inc., San Francisco, California
summary Radiosity & Global Illumination is a more theoretical coverage of global illumination. It has less code, but covers more topics than A Programmer's Perspective. In addition to the fundamental radiosity technique, this book discusses issues with control and complexity, and Monte Carlo techniques. Along with Peter Shirley's book, this provides fairly good coverage of the theory and practice of ray tracing based global illumination algorithms.
series other
last changed 2003/04/23 15:14

_id 72a1
authors Ward, G.
year 1994
title The RADIANCE Lighting Simulation and Rendering System
source Computer Graphics Proceedings, Annual Conference Series, 1994, pp. 459-472
summary This paper describes a physically-based rendering system tailored to the demands of lighting design and architecture. The simulation uses a light-backwards ray-tracing method with extensions to efficiently solve the rendering equation under most conditions. This includes specular, diffuse and directional-diffuse reflection and transmission in any combination to any level in any environment, including complicated, curved geometries. The simulation blends deterministic and stochastic raytracing techniques to achieve the best balance between speed and accuracy in its local and global illumination methods. Some of the more interesting techniques are outlined, with references to more detailed descriptions elsewhere. Finally, examples are given of successful applications of this free software by others.
series journal paper
last changed 2003/04/23 15:50

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