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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	ec4d
authors	Croser, J.
year	2001
title	GDL Object
source	The Architect’s Journal, 14 June 2001, pp. 49-50
summary	It is all too common for technology companies to seek a new route to solving the same problem but for the most part the solutions address the effect and not the cause. The good old-fashioned pencil is the perfect example where inventors have sought to design-out the effect of the inherent brittleness of lead. Traditionally different methods of sharpening were suggested and more recently the propelling pencil has reigned king, the lead being supported by the dispensing sleeve thus reducing the likelihood of breakage. Developers convinced by the Single Building Model approach to design development have each embarked on a difficult journey to create an easy to use feature packed application. Unfortunately it seems that the two are not mutually compatible if we are to believe what we see emanating from Technology giants Autodesk in the guise of Architectural Desktop 3. The effect of their development is a feature rich environment but the cost and in this case the cause is a tool which is far from easy to use. However, this is only a small part of a much bigger problem, Interoperability. You see when one designer develops a model with one tool the information is typically locked in that environment. Of course the geometry can be distributed and shared amongst the team for use with their tools but the properties, or as often misquoted, the intelligence is lost along the way. The effect is the technological version of rubble; the cause is the low quality of data-translation available to us. Fortunately there is one company, which is making rapid advancements on the whole issue of collaboration, and data sharing. An old timer (Graphisoft - famous for ArchiCAD) has just donned a smart new suit, set up a new company called GDL Technology and stepped into the ring to do battle, with a difference. The difference is that GDL Technology does not rely on conquering the competition, quite the opposite in fact their success relies upon the continued success of all the major CAD platforms including AutoCAD, MicroStation and ArchiCAD (of course). GDL Technology have created a standard data format for manufacturers called GDL Objects. Product manufacturers such as Velux are now able to develop product libraries using GDL Objects, which can then be placed in a CAD model, or drawing using almost any CAD tool. The product libraries can be stored on the web or on CD giving easy download access to any building industry professional. These objects are created using scripts which makes them tiny for downloading from the web. Each object contains 3 important types of information: · Parametric scale dependant 2d plan symbols · Full 3d geometric data · Manufacturers information such as material, colour and price Whilst manufacturers are racing to GDL Technologies door to sign up, developers and clients are quick to see the benefit too. Porsche are using GDL Objects to manage their brand identity as they build over 300 new showrooms worldwide. Having defined the building style and interior Porsche, in conjunction with the product suppliers, have produced a CD-ROM with all of the selected building components such as cladding, doors, furniture, and finishes. Designing and detailing the various schemes will therefore be as straightforward as using Lego. To ease the process of accessing, sizing and placing the product libraries GDL Technology have developed a product called GDL Object Explorer, a free-standing application which can be placed on the CD with the product libraries. Furthermore, whilst the Object Explorer gives access to the GDL Objects it also enables the user to save the object in one of many file formats including DWG, DGN, DXF, 3DS and even the IAI's IFC. However, if you are an AutoCAD user there is another tool, which has been designed especially for you, it is called the Object Adapter and it works inside of AutoCAD 14 and 2000. The Object Adapter will dynamically convert all GDL Objects to AutoCAD Blocks during placement, which means that they can be controlled with standard AutoCAD commands. Furthermore, each object can be linked to an online document from the manufacturer web site, which is ideal for more extensive product information. Other tools, which have been developed to make the most of the objects, are the Web Plug-in and SalesCAD. The Plug-in enables objects to be dynamically modified and displayed on web pages and Sales CAD is an easy to learn and use design tool for sales teams to explore, develop and cost designs on a Notebook PC whilst sitting in the architects office. All sales quotations are directly extracted from the model and presented in HTML format as a mixture of product images, product descriptions and tables identifying quantities and costs. With full lifecycle information stored in each GDL Object it is no surprise that GDL Technology see their objects as the future for building design. Indeed they are not alone, the IAI have already said that they are going to explore the possibility of associating GDL Objects with their own data sharing format the IFC. So down to the dirty stuff, money and how much it costs? Well, at the risk of sounding like a market trader in Petticoat Lane, "To you guv? Nuffin". That's right as a user of this technology it will cost you nothing! Not a penny, it is gratis, free. The product manufacturer pays for the license to host their libraries on the web or on CD and even then their costs are small costing from as little as 50p for each CD filled with objects. GDL Technology has come up trumps with their GDL Objects. They have developed a new way to solve old problems. If CAD were a pencil then GDL Objects would be ballistic lead, which would never break or loose its point. A much better alternative to the strategy used by many of their competitors who seek to avoid breaking the pencil by persuading the artist not to press down so hard. If you are still reading and you have not already dropped the magazine and run off to find out if your favorite product supplier has already signed up then I suggest you check out the following web sites www.gdlcentral.com and www.gdltechnology.com. If you do not see them there, pick up the phone and ask them why.
series	journal paper
email
last changed	2003/04/23 15:14

_id	8d90
authors	Johnson, Brian R.
year	2000
title	Between Friends: Support of Workgroup Communications
doi	https://doi.org/10.52842/conf.acadia.2000.041
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 41-49
summary	The web offers both business and academic users potential benefits from on-line collaboration. Online education presents universities with a means of handling the “baby boom echo” without expanding physical campuses (Carnevale 2000). Business “extranets” allow greater coordination amongst team members on projects where the cast of players involves experts in different locations. Both involve substituting computer-mediated communications (CMC) for traditionally face-to-face communications. Over the past several years, the author has deployed several of the available CMC technologies in support of small group interaction in academic and administrative settings. These technologies include email, video conferencing, web publication, web bulletin boards, web databases, mailing lists, and hybrid web BBS/email combinations. This paper reflects on aspects of embodied human interaction and the affordances of current CMC technology, identifying opportunities for both exploitation and additional development. One important but under-supported aspect of work group behavior is workspace awareness, or peripheral monitoring. The Compadres web-based system, which was developed to support workspace awareness among distributed workgroup members, is described. These findings are relevant to those seeking to create online communities: virtual design studios, community groups, distributed governance organizations, and workgroups formed as parts of virtual offices.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	08ea
authors	Clayton, Mark J. and Vasquez de Velasco, Guillermo P. (Eds.)
year	2000
title	ACADIA 2000: Eternity, Infinity and Virtuality in Architecture
doi	https://doi.org/10.52842/conf.acadia.2000
source	Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8 / Washington D.C. 19-22 October 2000, 284 p.
summary	Eternity, time without end, infinity, space without limits and virtuality, perception without constraints; provide the conceptual framework in which ACADIA 2000 is conceived. It is in human nature to fill what is empty and to empty what is full. Today, thanks to the power of computer processing we can also make small what is too big, make big what is too small, make fast what is too slow, make slow what is too fast, make real what does not exist, and make our reality omni-present at global scale. These are capabilities for which we have no precedents. What we make of them is our privilege and responsibility. Information about a building flows past our keyboards and on to other people. Although we, as architects, add to the information, it originated before us and will go beyond our touch in time, space and understanding. A building description acquires a life of its own that may surpass our own lives as it is stored, transferred, transformed, and reused by unknown intellects, both human and artificial, and in unknown processes. Our actions right now have unforeseen effects. Digital media blurs the boundaries of space, time and our perception of reality. ACADIA 2000 explores the theme of time, space and perception in relation to the information and knowledge that describes architecture. Our invitation to those who are finding ways to apply computer processing power in architecture received overwhelming response, generating paper submissions from five continents. A selected group of reviewers recommended the publication of 24 original full papers out of 42 submitted and 13 short papers out of 30 submitted. Forty-two projects were submitted to the Digital Media Exhibit and 12 were accepted for publication. The papers cover subjects in design knowledge, design process, design representation, design communication, and design education. Fundamental and applied research has been carefully articulated, resulting in developments that may have an important impact on the way we practice and teach architecture in the future.
series	ACADIA
email
more	www.acadia.org
last changed	2022/06/07 07:49

_id	3cd1
authors	Friedman, Asaf
year	2000
title	Language and Movement in CAD Application
doi	https://doi.org/10.52842/conf.caadria.2000.423
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. 423-432
summary	The paper attempts to explain some of the fundamental concepts as they relate to the experience of movement in space and the representation of walking-through or fly-over in architectural space. My goal is towards improving existing movement-in-architectural-space representation tolls. This study involves current research in cognitive science, in the domain of vision and spatial reasoning, in which we attempt to built a rudimentary model of the apparatus through which people experience space, and, in particular, architectural space. These conceptions necessitated the analysis of language. From the studies we can draw up a small number of critical qualities that have to be present in an improved version of a new movement-in-space representation tool. As opposed to existing computational tools representing movement in space navigation, the tool we build can offer a more immersive interactive experience for evaluating design solution alternatives and predicting moving-in-space experience.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	963d
authors	Moreau, Karen A. and Back, W. Edward
year	2000
title	Improving the design process with information management
source	Automation in Construction 10 (1) (2000) pp. 127-140
summary	This paper presents a method to quantify the time and cost impacts on Engineer, Procure, and Construct (EPC) projects resulting from information management driven process changes to the design process. Many engineering and construction companies have implemented information technologies and other changes, fully expecting to save time and cost, gain competitive advantage, improve productivity, better align project objectives, and improve product quality. Previous efforts to quantify benefits have been function or technology specific. The method described herein illustrates the value of evaluating process improvement strategies at the project level to avoid misleading conclusions regarding the actual benefit of investments. The research results strongly suggest that information management strategies applied to the design process may substantially improve total project performance.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	899f
authors	Papamichael, K., Pal, V., Bourassa, N., Loffeld, J. and Capeluto, I.G.
year	2000
title	An Expandable Software Model for Collaborative Decision-Making During the Whole Building Life Cycle
doi	https://doi.org/10.52842/conf.acadia.2000.019
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 19-28
summary	Decisions throughout the life cycle of a building, from design through construction and commissioning to operation and demolition, require the involvement of multiple interested parties (e.g., architects, engineers, owners, occupants and facility managers). The performance of alternative designs and courses of action must be assessed with respect to multiple performance criteria, such as comfort, aesthetics, energy, cost and environmental impact. Several stand-alone computer tools are currently available that address specific performance issues during various stages of a building’s life cycle. Some of these tools support collaboration by providing means for synchronous and asynchronous communications, performance simulations, and monitoring of a variety of performance parameters involved in decisions about a building during building operation. However, these tools are not linked in any way, so significant work is required to maintain and distribute information to all parties. In this paper we describe a software model that provides the data management and process control required for collaborative decision-making throughout a building’s life cycle. The requirements for the model are delineated addressing data and process needs for decision making at different stages of a building’s life cycle. The software model meets these requirements and allows addition of any number of processes and support databases over time. What makes the model infinitely expandable is that it is a very generic conceptualization (or abstraction) of processes as relations among data. The software model supports multiple concurrent users, and facilitates discussion and debate leading to decision-making. The software allows users to define rules and functions for automating tasks and alerting all participants to issues that need attention. It supports management of simulated as well as real data and continuously generates information useful for improving performance prediction and understanding of the effects of proposed technologies and strategies.
keywords	Decision Making, Integration, Collaboration, Simulation, Building Life Cycle, Software.
series	ACADIA
email
last changed	2022/06/07 08:00

_id	976f
authors	Cheng, Nancy and Kvan, Thomas
year	2000
title	Design Collaboration Strategies
source	Proceedings of the Fifth International Conference on Design and Decision Support Systems in Architecture, pp. 62-73
summary	This paper explains the logistical and technical issues involved in design collaboration and how toaddress them strategically in projects for design, teaching and research. Five years of arrangingprojects, studying peer results and involving novices in exchanges point out the benefits and pitfallsof Internet partnering. Rather than a single universal technical solution, multiple solutions exist: Technical means must betailored to specifics concerning the task and participants. The following factors need to be consideredin finding the best fit between technology and group design: 1) Collaboratorsí profiles, 2) Mutualvalue of produced information, 3) Collaboration structure, and 4) Logistical opportunities. Thesuccess of a virtual studio depends upon clear task definition, aligned participant expectations andsuitable engagement methods. We question the efforts required in the installation of expensive technologies for communication andvisualization. Often technical systems support ancillary and non-beneficial activity.
series	other
email
last changed	2003/05/15 10:29

_id	ddssar0005
id	ddssar0005
authors	Cheng, Nancy Yen-wen and Kvan, Thomas
year	2000
title	Design collaboration strategies
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	How can we best use computer technology to facilitate remote design teamwork? From looking at virtual studio collaborations, we propose that multiple solutions exist rather than a single one. In examining both published results and own student projects, we identify the following factors to be considered in finding the best fit between technology and group design: 1) Collaborators’ profiles; 2) Mutual value of produced information; 3) Collaboration structure and 4) Logistical opportunities
series	DDSS
last changed	2003/08/07 16:36

_id	ddssar0008
id	ddssar0008
authors	Coyne, R., Lee, J. and Ofluoglu, S.
year	2000
title	E-commerce and on-line product information
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	The spread of the Internet has spurred the recent growth in e-commerce. E-commerce impinges on design in many ways, not least in encouraging the development of new tools for the presentation of product information: that is, information about the products that are used in design projects. (In the case of building design this might include information about standard doors, windows and fittings.) In this paper we present our development of three experimental tools for presenting and organising product information. The tools represent stages in the evolution of a prototype we call PLA(id) (Product Library Assistant – Intranet for Designers) involving the use of multimedia authoring, Java, and mobile computing. We discuss our experimental prototypes under several headings derived from what are commonly considered the key features of e-commerce: the marketplace, collaboration (the electronic marketplace as a community), geography (and geographical boundaries), navigation, regulation, integration and media (how in some cases e-commerce provides both the medium of transaction and the medium of delivery). So this account of our experimentation with product information tools provides a way of reviewing issues raised by e-commerce and their importance for design decision support systems.
series	DDSS
last changed	2003/08/07 16:36

_id	16fb
authors	Dokonal, W., Martens, B. and Ploesch, R.
year	2001
title	On the Borderline - Building a 3-D City Model with Students
doi	https://doi.org/10.52842/conf.ecaade.2001.410
source	Architectural Information Management [19th eCAADe Conference Proceedings / ISBN 0-9523687-8-1] Helsinki (Finland) 29-31 August 2001, pp. 410-416
summary	This paper describes ongoing experiences with the „digcity“ project at Graz University of Technology (Austria). It presents a different approach in creating a 3-D City Model compared to other urban modeling projects. The substantial input made by students defines the basic characteristic of this project. In this contribution the redefinition of the project management is described. An outline of the project itself has been presented already in previous papers and presentations (Dokonal et.al., 2000 and 2001). These papers are updated here and the latest developments in this project are presented.
keywords	Urban Modeling, 3-D Modeling, Architectural Education, Collaboration
series	eCAADe
email
last changed	2022/06/07 07:55

_id	1a59
authors	Jeng, Taysheng
year	2000
title	Towards a Process-Centric, Asynchronous Collaborative Design Environment
doi	https://doi.org/10.52842/conf.caadria.2000.015
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. 15-24
summary	The objective of this paper is to develop an effective multi-user computer environment supporting design collaboration. As design teams are distributed in different positions in time-space, coordination becomes a challenging problem for any collaborative projects. This paper addresses the coordination problem by modeling the dependencies between activities. The prototype of a future generation of collaborative design systems is presented. It concentrates on establishing a software infrastructure towards a process-centric, asynchronous collaborative environment.
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	687c
authors	Kosco, Igor
year	1999
title	How the World Became Smaller
doi	https://doi.org/10.52842/conf.ecaade.1999.230
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 230-237
summary	The world of computers became fruitful and independent before the new millennium started. New technologies and methods are giving us new tools and possibilities every day as well as the challenge how to use them. The advantage of architecture and namely of architects teaching at the universities or schools is remarkable: new techniques reflect the education, research and practice - and what is important - by one person. The links between practice and university from the point of view: how the computer technologies and CAAD influences methods of designing, managing and collaboration are very important in both directions. It grows with the number of students who left university with good computer skills on one side and number of architectural and engineering offices using computers on the other. Networks and Internet enables to exchange data but also experiences. Internet itself is not only a tool for surfing and enjoying or the source of information, but preferably like a powerful tool for collaboration, workgroups, virtual studios or long distance education. This paper describes experiences from research and educational projects between Slovak Technical University, IUG Grenoble, University of Newcastle and others and their influence on architectural education and practice.
keywords	Long-Distance Education, Research, Practice
series	eCAADe
email
last changed	2022/06/07 07:51

_id	d28a
authors	Kvan, Thomas
year	2000
title	Collaborative design: what is it?
source	Automation in Construction, 9:4, July 2000, pp. 409-415
summary	Collaborative activities are an important application of computer technology now that telecommunications infrastructure has been established to support it. There are many students in schools of architecture who are undertaking collaborative projects using the Internet and many practices who work together exchanging files and interacting on shared digital models. Software vendors are developing tools to support such collaboration. But what are we doing? What is the nature of collaboration and what are the implications for tools that support this work?
keywords	Collaboration; Pedagogy; Virtual Studio
series	journal paper
email
last changed	2002/11/15 18:29

_id	4fa1
authors	Lee, E., Ida, Y., Woo, S. and Sasada, T.
year	1999
title	Environmental Design Using Fractals in Computer Graphics
doi	https://doi.org/10.52842/conf.ecaade.1999.533
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 533-538
summary	Computer graphics have developed efficient techniques for visualisation of the real world. Many of the algorithms have a physical basis, such as computational models for the light and the shadow, models of real objects (buildings, mountains, roads and so on) and the simulation of natural phenomenon. Now computer graphics techniques provide the virtual world with a perception of three dimensions. The concept of the virtual world and its technology have been expanding and intensifying in recent years. Almost everything in the real world has been simulated in virtual world. When it comes to a terrain model, what we need is labour and time. But now it is possible to simulate terrain like the real world using fractals in computer graphics with a very small program and small data set. This study aims to show how to build a real world impression in the virtual world. In this paper the authors suggest a landscape design method and show the results of its application.
keywords	Fractals, Polygon-Reduction, Computer Graphics, Virtual World, Collaboration
series	eCAADe
last changed	2022/06/07 07:51

_id	ddssar0022
id	ddssar0022
authors	Peng, C., Cerulli, C., Lawson, B., Cooper, G., Rezqui, Y. and Jackson, M.
year	2000
title	Recording and managing design decision-making processes through an object-oriented framework
source	Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary	In this paper we describe our current research into an object-oriented approach to the recording and managing of design decision-making in the processes of building design. The Advanced Design Support for the Construction Design Process (ADS) project, funded under the Innovative Manufacturing Initiative by the UK Engineering and Physical Sciences Research Council (EPSRC), aims to exploit and demonstrate the benefits of a CAD-based Design Decision Support System. The research focuses on how to provide designers with tools for recording and managing the group dynamics of design decision making in a project's life time without intruding too much on the design process itself. In collaboration with Building Design Partnership, a large multidisciplinary construction design practice, we look at design projects that require decision-making on an extraordinarily wide range of complex issues, and many different professional consultants were involved in making and approving these decisions. We are interested in developing an advanced CAD tool that will facilitate capturing designers' rationales underlying their design decision making throughout the project. The system will also enable us to explore how a recorded project history of decision-making can be searched and browsed by members of the project team during and after design development.
series	DDSS
last changed	2003/08/07 16:36

_id	ddss2004_ra-213
id	ddss2004_ra-213
authors	Penn, A., C. Mottram, A. Fatah gen. Schieck, M. Wittkämper, M. Störring, O. Romell, A. Strothmann, and F. Aish
year	2004
title	AUGMENTED REALITY MEETING TABLE: A NOVEL MULTI-USER INTERFACE FOR ARCHITECTURAL DESIGN
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Recent Advances in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Kluwer Academic Publishers, ISBN: 1-4020-2408-8, p. 213-231
summary	Immersive virtual environments have received widespread attention as providing possible replacements for the media and systems that designers traditionally use, as well as, more generally, in providing support for collaborative work. Relatively little attention has been given to date however to the problem of how to merge immersive virtual environments into real world work settings, and so to add to the media at the disposal of the designer and the design team, rather than to replace it. In this paper we report on a research project in which optical see-through augmented reality displays have been developed together with prototype decision support software for architectural and urban design. We suggest that a critical characteristic of multi user augmented reality is its ability to generate visualisations from a first person perspective in which the scale of rendition of the design model follows many of the conventions that designers are used to. Different scales of model appear to allow designers to focus on different aspects of the design under consideration. Augmenting the scene with simulations of pedestrian movement appears to assist both in scale recognition, and in moving from a first person to a third person understanding of the design. This research project is funded by the European Commission IST program (IST-2000-28559).
keywords	Design Collaboration, Tangible Interface, Gesture, Agent Simulation, Augmented Reality
series	DDSS
type	normal paper
last changed	2004/07/03 23:11

_id	05db
authors	Peri, Christopher
year	2000
title	Exercising Collaborative Design in a Virtual Environment
doi	https://doi.org/10.52842/conf.acadia.2000.063
source	Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 63-71
summary	In the last few years remote collaborative design has been attracting interest, and with good reason: Almost everything we use today, whether it is the structure we inhabit, the vehicle we travel in, or the computer we work on, is the result of a number of participants’ contributions to a single design. At the same time, more and more design teams are working in remote locations from one another. In a distributed design situation with remote players, communication is key for successful and effective collaboration. Archville is a distributed, Web-based VR system that allows multiple users to interact with multiple models at the same time. We use it as a platform to exercise collaborative design by requiring students to build individual buildings as part of a city, or village and must share some common formal convention with their neighbors. The Archville exercise demonstrates to students how we can use computing and the Internet to design collaboratively. It also points out the need to have correct up-to-date information when working on collaborative projects because of the dynamic nature of the design process. In addition to architectural design and computer modeling, the exercise immerses students in the political and social aspects of designing within a community, where many of the design constraints must be negotiated, and where group work is often required. The paper describes both the pedagogical and the technical attributes of the Archville project.
keywords	Collaboration, Virtual Reality, Design Studio, Real-Time, VRML
series	ACADIA
last changed	2022/06/07 08:00

_id	3125
authors	Peyret, F. Bétaille, D. and Hintzy, G.
year	2000
title	High-precision application of GPS in the field of real-time equipment positioning
source	Automation in Construction 9 (3) (2000) pp. 299-314
summary	In the frame of its research concerning real-time positioning and control of road construction equipment, the Laboratoire Central des Ponts et Chaussées, has carried out in 1996 a study to know more about the actual vertical accuracy that a real-time kinematic (RTK) global positioning system (GPS) sensor could reach, under work site conditions. This study has widely used the dedicated testing facility called SESSYL, built to perform high-accuracy and real-time evaluation tests on positioning systems. It has been performed in collaboration with the French road contractor COLAS and the Ecole Supérieure des Géomètres et Topographes (ESGT). First, there is the proposed adapted geodetic transformation procedure, compatible with the high accuracy requirements. Then, the main results of a special SESSYL tests program are presented, where the impacts of several influencing parameters on the vertical accuracy have been carefully examined. The core part of the paper is the analysis of the typical RTK GPS set of data, from which we have tried to extract two different components: a high-frequency noise, rather easy to filter, and a low-frequency bias. This bias, given its good repeatability, can be modelled and used in prediction to improve in real-time the raw accuracy of the data. As a full-scale validation of our study, a site experiment is finally described, carried out this time on a real piece of equipment (an asphalt paver) during real roadwork.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:23

_id	988d
authors	Russell, Peter and Forgber, Uwe
year	2000
title	The E-Talier: Inter-university Networked Design Studios
doi	https://doi.org/10.52842/conf.ecaade.2000.045
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. 45-50
summary	The widespread infiltration of internet based variations of traditional areas of society (e-commerce, e-business, e-mail etc.) will not spare the halls of academia in its propagation. The term courseware is well nigh 20 years old and considerable research and development has been done in bringing network based distributed courses to university consortiums including those in architecture and civil engineering. Indeed, the European Commission has recently approved funding for a 3-year web-based virtual university of architecture and construction technology: the WINDS project led by the University of Ancona. Such attempts to create e-courses are largely an extension of typical courseware where the syllabus is quantified and divided into lessons for use by the students alone or in conjunction with their tutors and professors. This is quite adequate in conveying the base knowledge of the profession. However, the tenants of being an architect or engineer involve the deft use of that unwieldy named and deliciously imprecise tool called "design". Teaching design sooner or later involves the design studio: a pedagogically construed environment of simulation intended to train, not teach the skills of designing. This is fundamentally different from normal courseware. A network based design studio (Etalier) must be able to reflect the nature of learning design. Design studios typically involve specifically chosen design problems, researched supporting information to assist design decisions, focussed discussions, individual consultation and criticism, group criticism, public forums for presentation discussion and criticism as well as a myriad of informal undocumented communication among the students themselves. So too must an Etalier function. Essentially, it must allow collaboration through communication. Traditional barriers to collaboration include language, culture (both national and professional) and distance. Through the internet's capricious growth and the widespread use of English as a second language, the largest hurdle to attaining fruitful collaboration is probably cultural. In the case of an Etalier in a university setting, the cultural difficulties arise from administrative rules, the pedagogical culture of specific universities and issues such as scheduling and accreditation. Previous experiments with virtual design studios have demonstrated the criticality of such issues. The proposed system allows participating members to specify the degree and breadth with which they wish to partake. As opposed to specifying the conditions of membership, we propose to specify the conditions of partnership. Through the basic principal of reciprocity, issues such as accreditation and work load sharing can be mitigated. Further, the establishment of a studio market will allow students, tutors and professors from participating institutions to partake in studio projects of their choosing in accordance with their own constraints, be they related to schedule, expertise, legal or other matters. The paper describes these mechanisms and some possible scenarios for collaboration in the Etalier market.
keywords	e-Studio, Virtual Design Studio, Courseware, CSCW
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:56

_id	ca3d
authors	Shakarchi, Ali Y.
year	2000
title	Tools for Distributed Design Practice
doi	https://doi.org/10.52842/conf.ecaade.2000.089
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. 89-92
summary	During collaboration designers jointly solve problems as well as interact for critical feedback. Today’s heterogeneous, distributed and global market demands of designers collaboration in both synchronous and asynchronous mode. The management and control of such projects is frequently geographical and temporally distributed. Increasingly, efficient communication is becoming a vital component in the design process, whether in managing the project data or controlling the compatibility of different inputs by design team members or minimizing the revision cycles. Paper presents and discuss iSPACE, the mature prototype software application developed to serve different scenarios of communication between the distributed design team members. The iSPACE is web based application that can deliver an interactive environment over low-bandwidth connections. Application of iSPACE in the educational environment is monitored and discussed. Giving the potential of this technology to enhance and to streamline complex tasks associated with the design process, the quality of the design product is changing. The new style of design practice can be now practically further modeled, supported and enhanced.
keywords	Design Collaboration, Design Process, i-space, Digital Media
series	eCAADe
email
more	http://www.uni-weimar.de/ecaade/
last changed	2022/06/07 07:56

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