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	ascaad2004_paper11
id	ascaad2004_paper11
authors	Abdelfattah, Hesham Khairy and Ali A. Raouf
year	2004
title	No More Fear or Doubt: Electronic Architecture in Architectural Education
source	eDesign in Architecture: ASCAAD's First International Conference on Computer Aided Architectural Design, 7-9 December 2004, KFUPM, Saudi Arabia
summary	Operating electronic and Internet worked tools for Architectural education is an important, and merely a prerequisite step toward creating powerful tele-collabortion and tele-research in our Architectural studios. The design studio, as physical place and pedagogical method, is the core of architectural education. The Carnegie Endowment report on architectural education, published in 1996, identified a comparably central role for studios in schools today. Advances in CAD and visualization, combined with technologies to communicate images, data, and “live” action, now enable virtual dimensions of studio experience. Students no longer need to gather at the same time and place to tackle the same design problem. Critics can comment over the network or by e-mail, and distinguished jurors can make virtual visits without being in the same room as the pin-up—if there is a pin-up (or a room). Virtual design studios (VDS) have the potential to support collaboration over competition, diversify student experiences, and redistribute the intellectual resources of architectural education across geographic and socioeconomic divisions. The challenge is to predict whether VDS will isolate students from a sense of place and materiality, or if it will provide future architects the tools to reconcile communication environments and physical space.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	0ec9
authors	Agranovich-Ponomareva. E., Litvinova, A. And Mickich, A.
year	1996
title	Architectural Computing in School and Real Designing
doi	https://doi.org/10.52842/conf.ecaade.1996.025
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 25-28
summary	The existing system of architectural education ( including computer ) as has shown practice has appeared not absolutly perfect. It not capable to dynamic changes, active introduction of a new engineering and computer technologies, to realization about of the inquiries of a modern time. It suggest of a way of search of new models of computer training. The computer education is represented by us as certain a universal system, which permits to solve the problem of arcitectural education at a higher level. The opportunities of computers and computer technologies at such approach are used as means of increase of efficiency teaching and training. The orientation goes on final result: a opportunity to generate of the creative decisions by learnees, based on attraction of received knowledge and use for their realization of arsenal of practical skills and skills. The system represents not only certain set of experiences elements, necessary and final result sufficient for achievement, but also quite certain interrelation between them. It means, that the knowledge from a initial rate " The Introduction in computer training" must be secured and transformed for utilization in special rates and through them- in practice. The functional nucleus of the software package of such universal system is under construction as opened, apparatus an independent system. A central part of a system is a database, the structure of which is uniform for all other modules and side of enclosures. The conceptual model of a system is under construction on principles structure idea, visualization, multimedia. The listed principles are realized in model so that to encourage the user to independent creative work.
series	eCAADe
last changed	2022/06/07 07:54

_id	c204
authors	Aleksander Asanowicz
year	1996
title	Teaching and Learning - Full Brainwash
doi	https://doi.org/10.52842/conf.ecaade.1996.051
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 51-54
summary	We often speak of changes in design process due to an application of computers. But in my opinion we more often rather speak of lack of changes. Lets hope that some day we will be able to witness full integrity and compatibility of design process and tools applied in it. Quite possible such an integrity may occur in the cyberspace. Nevertheless before that could happen some changes within the teaching methods at faculties of architecture, where despite great numbers of computer equipment used, the students are still being taught as in the XIX century. In terms of achieved results it proves ineffective because application of chalk and blackboard only will always loose to new media, which allow visual perception of dinosaurs in Jurassic Park. Our civilisation is the iconographic one. And that is why teaching methods are about to change. An application of computer as simply a slide projector seems to be way too expensive. New media demands new process and new process demands new media. Lets hope that could be achieved in cyberspace as being a combination of: classic ways of teaching, hypertext, multimedia, virtual reality and a new teaching methodology (as used in Berlitz English School - full brainwash). At our faculty several years ago we experimentally undertook and applied an Integrated Design Teaching Method. A student during design process of an object simultaneously learnt all aspects and functions of the object being designing i.e.: its structure, piping and wiring, material cost and even historic evolution of its form and function. Unfortunately that concept was too extravagant as for the seventies in our reality. At present due to wide implementation of new media and tools in design process we come to consider reimplementation of IDTM again.
series	eCAADe
email
last changed	2022/06/07 07:54

_id	8a25
authors	Alshawi, M. and Underwood, J.
year	1996
title	Applying object-oriented analysis to the integration of design and construction
source	Automation in Construction 5 (2) (1996) pp. 105-121
summary	This paper implements an Object Oriented Analysis technique to model information related to design and construction. In a previous study, an approach to integrate design and construction processes based upon information analysis and modelling has been proposed. By breaking down the project's vast information into groups of related information, construction related problems have been identified and then traced back too their relevant design processes. This paper models this process using a relatively young and new method of analysis rather than a traditional structured approach. An Object-Oriented Analysis (OOA) method has been applied to model the information in terms of the fundamental ideas that underlie object-oriented technology i.e. object types and classes, methods, requests, encapsulation and inheritance. Proceeding through the five major activities of Coad and Yourdon's OOA method, a complete OOA model has been developed with potential to improve the construction related problems.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	d5c8
authors	Angelo, C.V., Bueno, A.P., Ludvig, C., Reis, A.F. and Trezub, D.
year	1999
title	Image and Shape: Two Distinct Approaches
source	III Congreso Iberoamericano de Grafico Digital [SIGRADI Conference Proceedings] Montevideo (Uruguay) September 29th - October 1st 1999, pp. 410-415
summary	This paper is the result of two researches done at the district of Campeche, Florianópolis, by the Grupo PET/ARQ/UFSC/CAPES. Different aspects and conceptual approaches were used to study the spatial attributes of this district located in the Southern part of Santa Catarina Island. The readings and analysis of two researches were based on graphic pistures builded with the use of Corel 7.0 e AutoCadR14. The first research – "Urban Development in the Island of Santa Catarina: Public Space Study"- examined the urban structures of Campeche based on the Spatial Syntax Theory developed by Hillier and Hanson (1984) that relates form and social appropriation of public spaces. The second research – "Topoceptive Characterisation of Campeche: The Image of a Locality in Expansion in the Island of Santa Catarina" -, based on the methodology developed by Kohlsdorf (1996) and also on the visual analysis proposed by Lynch (1960), identified characteristics of this locality with the specific goal of selecting attributes that contributed to the ideas of the place its population held. The paper consists of an initial exercise of linking these two methods in order to test the complementarity of their analytical tools. Exemplifying the analytical procedures undertaken in the two approaches, the readings done - global (of the locality as a whole) and partial (from parts of the settlement) - are presented and compared.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	452d
authors	Arlati, E., Bottelli, V. and Fogh, C.
year	1996
title	Applying CBR to the Teaching of Architectural Design
doi	https://doi.org/10.52842/conf.ecaade.1996.041
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 41-50
summary	This paper presents an approach to the analysis and description of the nature of process knowledge in architectural design, the development of a conceptual model for Galathea, a case-based navigation tool for its support, and the application of this theoretical foundation to the teaching of design to a group of about 100 second-year architecture students. Design is assumed as a globally coherent information, memory and experience-intensive process in which professional skill is the capability to govern a large number of continually evolving variables in the direction of desired change. This viewpoint on design has guided the development of Galathea, the model of a tool aimed at describing architectural design through the description, mapping and management of the complete decision-making path of projects by means of the dynamic representation of the relationship between goals, constraints and the decisions/actions adopted at specific nodes and through the creation of a case-base aimed at the storage, retrieval and adaptation of relevant design moves in similar project contexts. This conceptual model is applied to educational activity at the faculty of Architecture of Milan, with the aim of teaching how to govern a project from the outset considering it as an evolving but coherent map of design moves, which allow the adoption of the correct decisions involving the most disparate types of information, experience and memory, and which altogether conduct to the desired goal. The resolution paths of the students, all applied to the same architecture problem, result in a design move case-base, the further utilisation and interest of which is open to collegial discussion.
keywords	knowledge-based design; case-based reasoning; design process control, design moves
series	eCAADe
email
last changed	2022/06/07 07:54

_id	c872
authors	Beliveau, Y.J., Fithian, J.E. and Deisenroth, M.P.
year	1996
title	Autonomous vehicle navigation with real-time 3D laser based positioning for construction
source	Automation in Construction 5 (4) (1996) pp. 261-272
summary	Autonomous Guided Vehicles (AGVs) are a way of life in manufacturing where navigation can be done in a structured environment. Construction is an unstructured environment and requires a different type of navigation system to deal with three dimensional control and rough terrain. This paper provides a review of navigation systems that utilize dead-reckoning in conjunction with absolute referencing systems such as beacon-based systems, and vision and mapping based system. The use of a real-time laser based technology is demonstrated as a new form of navigation. This, technology does not rely on dead reckoning. The paper outlines the issues and strategies in guiding an autonomous vehicle utilizing only the laser-based positioning system. Algorithms were developed to provide real-time control of the AGV. The laser based positioning system is unique in that it provides three dimensional position data with five updates per second. No other system can provide this level of performance. This allows for control of end effectors and autonomous vehicles in complex and unstructured three dimensional environments. The use of this new type of navigation makes possible the automation of large complex assemblies in rough terrain such as construction.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	a04a
authors	Bhavnani, S.K. and John, B.E.
year	1996
title	Exploring the Unrealized Potential of Computer-Aided Drafting
source	Proceedings of CHI'96 (1996), 332-339
summary	Despite huge investments by vendors and users, CAD productivity remains disappointing. Our analysis of real- world CAD usage shows that even after many years of experience, users tend to use suboptimal strategies to perform complex CAD tasks. Additionally, some of these strategies have a marked resemblance to manual drafting techniques. Although this phenomenon has been previously reported, this paper explores explanations for its causes and persistence. We argue that the strategic knowledge to use CAD effectively is neither defined nor explicitly taught. In the absence of a well-formed strategy, users often develop a synthetic mental model of CAD containing a mixture of manual and CAD methods. As these suboptimal strategies do not necessarily prevent users from producing clean, accurate drawings, the inefficiencies tend to remain unrecognized and users have little motivation to develop better strategies. To reverse this situation we recommend that the strategic knowledge to use CAD effectively should be made explicit and provided early in training. We use our analysis to begin the process of making this strategic knowledge explicit. We conclude by discussing the ramifications of this research in training as well as in the development of future computer aids for drawing and design.
keywords	Task Decomposition; Learning
series	other
email
last changed	2003/11/21 15:16

_id	82ff
authors	Bhavnani, S.K., Flemming, U., Forsythe, D.E., Garrett, J.H., Shaw, D.S. and Tsai, A.
year	1996
title	CAD usage in an architectural office: from observations to active assistance
source	Automation in Construction 5 (3) (1996) pp. 243-255
summary	The functionality and resources provided by CAD systems have been increasing rapidly, but productivity growth expected from their use has been difficult to achieve. Although many surveys describe this productivity puzzle, few studies have been conducted on actual CAD users to understand its causes. In an effort to arrive at such an understanding, the first author visited a federal architectural office and observed CAD users in their natural setting. This paper describes preliminary results obtained from the study, which used ethnographic techniques developed by cultural anthropologists. The study revealed that users had leveled-off in their learning and experimentation and were using the CAD system in suboptimal ways. By asking why users were not using many resources available to them to improve performance, the observer uncovered issues of communication and management that needed to be addressed. Based on this understanding, the authors provide explicit recommendations to CAD users and vendors. In addition, they hypothesize that users might benefit from a system that provides active assistance, that is, intervenes spontaneously with advice, assistance, and relevant information while the user interacts with the CAD system. They conclude with some issues revealed by the study that should be considered when developing such active assistance.
series	journal paper
email
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	af53
authors	Boyer, E. and Mitgang, L.
year	1996
title	Building community: a new future for architecture education and practice
source	Carnegie Foundation for the Advancement of Teaching
summary	Internships, before and after graduation, are the most essential link connecting students to the world of practice. Yet, by all accounts, internship is perhaps the most troubled phase of the continuing education of architects. During this century, as architectural knowledge grew more complex, the apprenticeship system withered away and schools assumed much of the responsibility for preparing architects for practice. However, schools cannot do the whole job. It is widely acknowledged that certain kinds of technical and practical knowledge are best learned in the workplace itself, under the guidance of experienced professionals. All state accrediting boards require a minimum period of internship-usually about three years-before a person is eligible to take the licensing exam. The National Council of Architectural Registration Boards (NCARB) allows students to earn up to two years of work credit prior to acquisition of an accredited degree. The Intern Development Program (IDP), launched by NCARB and the American Institute of Architects in 1979, provides the framework for internship in some forty states. The program was designed to assure that interns receive adequate mentoring, that experiences are well-documented, and that employers and interns allocate enough time to a range of educational and vocational experiences to prepare students for eventual licensure. As the IDP Guidelines state, "The shift from school to office is not a transition from theory to pragmatism. It is a period when theory merges with pragmatism.... It's a time when you: apply your formal education to the daily realities of architectural practice; acquire comprehensive experience in basic practice areas; explore specialized areas of practice; develop professional judgment; continue your formal education in architecture; and refine your career goals." Whatever its accomplishments, however, we found broad consensus that the Intern Development Program has not, by itself, solved the problems of internship. Though we found mutually satisfying internship programs at several of the firms we visited or heard about around the country, at many others interns told us they were not receiving the continuing education and experience they needed. The truth is that architecture has serious, unsolved problems compared with other fields when it comes to supplying on-the-job learning experiences to induct students into the profession on a massive scale. Medicine has teaching hospitals. Beginning teachers work in actual classrooms, supported by school taxes. Law offices are, for the most part, in a better financial position to support young lawyers and pay them living wages. The architecture profession, by contrast, must support a required system of internship prior to licensure in an industry that has neither the financial resources of law or medicine, the stability and public support of teaching, nor a network of locations like hospitals or schools where education and practice can be seamlessly connected. And many employers acknowledged those problems. "The profession has all but undermined the traditional relationship between the profession and the academy," said Neil Frankel, FAIA, executive vice president of Perkins & Will, a multinational firm with offices in New York, Chicago, Washington, and London. "Historically, until the advent of the computer, the profession said, 'Okay, go to school, then we in the profession will teach you what the real world is like.' With the coming of the computer, the profession needed a skill that students had, and has left behind the other responsibilities." One intern told us she had been stuck for months doing relatively menial tasks such as toilet elevations. Another intern at a medium-sized firm told us he had been working sixty to seventy hours per week for a year and a half. "Then my wife had a baby and I 'slacked off' to fifty hours. The partner called me in and I got called on the carpet for not working hard enough." "The whole process of internship is being outmoded by economics," one frustrated intern told us. "There's not the time or the money. There's no conception of people being groomed for careers. The younger staff are chosen for their value as productive workers." "We just don't have the best structure here to use an intern's abilities to their best," said a Mississippi architect. "The people who come out of school are really problems. I lost patience with one intern who was demanding that I switch him to another section so that he could learn what he needed for his IDP. I told him, 'It's not my job to teach you. You are here to produce.'" What steps might help students gain more satisfying work opportunities, both during and after graduation?
series	other
last changed	2003/04/23 15:14

_id	a8b4
authors	Bridges, A.H.
year	1997
title	Implications of the Internet for the construction industry
source	Automation in Construction 6 (1) (1997) pp. 45-49
summary	This paper is an adaptation of a section of the Building IT 2005 multimedia CD-ROM (Building IT 2005, Construction IT Forum, Cambridge, 1995). The paper discusses the implications of network technology for the construction industry. Introductory material about the Internet (and links to interesting resources) is included in the publication cited and a much more extensive guide is available in A.H. Bridges, The Construction Net, E. & FN Spon, London 1996.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_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	sigradi2004_043
id	sigradi2004_043
authors	Celso Pereira Guimarães; Gerson G. Cunha; Luis Landau
year	2004
title	Sistema de informação e orientação para ambientes públicos em VR - O caso do hu da ufrj um projeto sinalético [Information and Orientation System for Public Environments in VR - The Case of UFRJ University Hospital, a Communication Design Project]
source	SIGraDi 2004 - [Proceedings of the 8th Iberoamerican Congress of Digital Graphics] Porte Alegre - Brasil 10-12 november 2004
summary	Considering Levy.s (1996) thought that qualifies the cyberspace as an anbient par excellence and susceptible to be transformed and explored [1], our work intends to introduce through the simulation in VR, the use of that anbient as support of conception projetual and of the analysis and verification of the efficiency of the proposal of the System of Comunication Design implanted at the Hospital Clementino Fraga Filho of the Federal University of Rio de Janeiro (HU). [2]
series	SIGRADI
email
last changed	2016/03/10 09:48

_id	6c40
authors	Colajanni, B., Martelli, T. and Pellitteri, G.
year	1996
title	A Tool for the Analysis of the Behaviour of Building Components: The Cellular Automation
doi	https://doi.org/10.52842/conf.ecaade.1996.099
source	Education for Practice [14th eCAADe Conference Proceedings / ISBN 0-9523687-2-2] Lund (Sweden) 12-14 September 1996, pp. 99-110
summary	An implementation of a cellular automation is presented that allows the simulation of the behaviour of building components under diverse environment conditions. The tool has a wide range of applications because of the generality of its structure. The object on which it operates is represented as a set of cells each of which is defined, besides its geometrical dimension and position, by a set of variables and parameters. The work it performs consists in computing transitions from a state to another, i.e. the values variables and parameters take in each cell under the action of external agents and of internal laws of interaction between self As an example of its use an application is shown analysing the thermal behaviour of the connection of a curtain wall to a concrete floor.
series	eCAADe
email
last changed	2022/06/07 07:56

_id	911c
authors	Darken, Rudolph P.
year	1996
title	Wayfinding in Large-Scale Virtual Worlds
source	George Washington University
summary	As important as navigation is to human performance in virtual worlds, it is an often overlooked problem in the design process. This dissertation reports an experiment intended to show that real-world wayfinding and environmental design principles are effective in designing virtual worlds which support skilled wayfinding behavior. The design principles are adapted from both the cognitive psychology literature and urban and architectural design methodologies. There are two categories of design principles; those that guide the organizational structure of the environment, and those that guide the use and presentation of maps. The study measures subject performance on a complex searching task in a number of virtual worlds with differing environmental cues. The environments are extremely large and consist of open sea, land, and ships which are used as targets for search tasks. The worlds are augmented with either a radial grid, a map, both, or neither. For each trial, the subject's viewpoint position and orientation was sampled approximately once per second. A verbal protocol with accompanying video was used to elicit information about the search strategies employed. A map drawing exercise followed each trial in order to gain insight to the subject's spatial knowledge (i.e. cognitive map) of the environment. The results show that subjects in the treatment without any additional cues were often disoriented and had extreme difficulty completing the task. The grid was shown to provide superior directional information but both treatments using the map were superior overall due to the geocentric perspective provided. Behaviors associated with each treatment indicate that the cues had a strong effect on both search performance and search strategy. The results suggest that users of large-scale virtual worlds require structure in order to effectively navigate. Augmentations such as direction indicators, maps, and path restriction can all greatly improve both wayfinding performance and overall user satisfaction.
series	thesis:PhD
email
more	http://www.seas.gwu.edu/~sibert/darken/publications/Dissertation_95/thesis.html
last changed	2003/02/12 22:37

_id	ddssar9613
id	ddssar9613
authors	de Groot, E.H. and Louwers, F.H.
year	1996
title	The TIE-system, a KBS for the Evaluation of Thermal Indoor office Environments
source	Timmermans, Harry (Ed.), Third Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Spa, Belgium), August 18-21, 1996
summary	A Knowledge-Based System [KBS] for the evaluation of Thermal Indoor office Environments [TIE] (in the Netherlands) was the product of a one-year project, undertaken by researchers of the Physical Aspects of the Built Environment group [FAGO] in cooperation with the Knowledge-Based System Section of the TNO-Building & Construction research Institute in Delft. The objective of the project was to develop a KBS capable of evaluating thermal indoor environments of existing or proposed office buildings designs. The approach used in this study was based on a traditional method of predicting thermal sensation by calculating Fanger's 'Predicted Mean Vote' [PMV]. PMV is influenced by four environmental parameters of a room: air temperature, radiant temperature, air velocity and relative humidity, and by two personal parameters of the employees: metabolic rate and clothing insulation. The knowledge required to determine these six parameters was placed in KBS-databases and tables using a KBS-building tool called Advanced Knowledge Transfer System [AKTS]. By questioning the user, the TIE-system is capable of determining the PMV for a particular office room. The system also provides conclusions and advice on improving the thermal comfort. The TIE-system was a pilot-study for the long-term Building Evaluation research project, being undertaken at FAGO, that examines in all aspects of office building performance, and in which KBS may play a major pole.
series	DDSS
last changed	2003/08/07 16:36

_id	9a0d
authors	Debevec, P.E., Taylor, C.J. and Malik, J.
year	1996
title	Modeling and rendering architecture from photographs: a hybrid geometry- and image-based approach
source	SIGGRAPH'96, New Orleans, Louisiana
summary	We present a new approach for modeling and rendering existing architectural scenes from a sparse set of still photographs. Our modeling approach, which combines both geometry-based and imagebased techniques, has two components. The first component is a photogrammetricmodelingmethodwhich facilitates the recovery of the basic geometry of the photographed scene. Our photogrammetric modeling approach is effective, convenient, and robust because it exploits the constraints that are characteristic of architectural scenes. The second component is a model-based stereo algorithm, which recovers how the real scene deviates from the basic model. By making use of the model, our stereo technique robustly recovers accurate depth from widely-spaced image pairs. Consequently, our approach canmodel large architectural environmentswith far fewer photographs than current image-based modeling approaches. For producing renderings, we present view-dependent texture mapping, a method of compositing multiple views of a scene that better simulates geometric detail on basic models. Our approach can be used to recover models for use in either geometry-based or image-based rendering systems. We present results that demonstrate our approach's ability to create realistic renderings of architectural scenes from viewpoints far from the original photographs.
series	other
last changed	2003/04/23 15:50

_id	3905
authors	Duffy, T.M. and Cunningham, D.J.
year	1996
title	Constructivism: Implications for the design and delivery of instruction
source	D.H. Jonassen, (Ed) Handbook of research for educational communications and technology, N.Y; Macmillan Library reference USA
summary	This will be a seminar that examines Constructivist theory as it applies to our thinking about instruction. Many folks think of constructivism as a method of instruction -- it is not. It is a framework for thinking about learning or what it means to come to know. As such, it is a framework for understanding (interpreting) any learning environment as well as a framework for designing instruction. The seminar will be organized around weekly readings. We will examine the alternative constructivist theories, e.g., socio-cultural constructivism and cognitive constructivism, and the pragmatism of Richard Rorty. However, rather than focusing on the differences between these frameworks, our emphasis will be on the implications of the broader, common framework for the design of instruction. Hence we will spend most of the semester discussing strategies for designing and delivering instruction, e.g., the work of Bransford, Collins, Pea, Jonassen, Spiro, Fosnot, Senge, and Schank. We will consider both business and schooling environments for learning -- there is significant work in both domains. There will be particular emphasis of the use of technology in instruction. We will look at the communication, information, and context providing roles of technology as contrasted to the traditional approach of using technology to deliver instruction (to teach). We will also pay particular attention to problem based learning as one instructional model. In PBL there is particular emphasis on the role of the facilitator as a learning coach (process orientation) as opposed to a content provider. There is also a particular emphasis on supporting the development of abductive reasoning skills so that the learner develops the ability to be an effective problem solver in the content domain. The major paper/project for the course will be the design of instruction to train individuals to be learning coaches in a problem based learning or goal based scenario learning environment. That is, how do you support teachers in adapting the role of learning coach (which, of course, requires us to understand what it means to be a learning coach). Design teams will be formed with the teams all working on this same design problem. A comprehensive prototype of the learning environment is required as well as a paper provide the theoretical framework and rationale for the design strategy. While not required, I would expect that computer technology will play a significant role in the design of your learning environment. With that in mind, let me note that it is not required that the prototype be delivered on the computer, i.e., I am not requiring programming skills but rather design skills and so "storyboards" is all that is required.
series	other
last changed	2003/04/23 15:14

_id	ddssar9608
id	ddssar9608
authors	Emdanat, S.S. and Vakalo, E.-G.
year	1996
title	Shape grammars: a critical review and some thoughts
source	Timmermans, Harry (Ed.), Third Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Spa, Belgium), August 18-21, 1996
summary	Shape grammars are generative formalisms that produce shapes in specified styles. Little critical work has been done to examine the assumptions that shape grammar researchers make about architectural form and its generation, the methodology they employ, the underlying formalism they use, and consequently the adequacy of this formalism to describe architectural form. After establishing the criteria for evaluating the adequacy of a given generative formalism, this paper applies them to the evaluation of the shape grammar formalism. The paper demonstrates that, in its present state, shape grammar leaves a great deal to be desired in terms of its descriptive power and its generalizability. The paper concludes by exploring some of the desired characteristics for languages of architectural form.
series	DDSS
last changed	2003/08/07 16:36

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