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Amor R, Faraj I

Misconceptions About Integrated Project Databases

Abstract: The notion of an integrated project database (IPDB) has existed for decades. Over that time many projects have been undertaken to develop the technologies and frameworks required to implement an IPDB. Also over that time, there has been promotion of the benefits and impacts that IPDB systems will have on the industry. As there are still no industrially stable IPDB systems in existence, the industry's perception of what they are and what they can do has diverged from many of the original presentations. It is also clear that researchers and de-velopers involved in IPDB development have many different ideas about what constitutes an IPDB and what is, or is not, possible to create. This paper aims to describe misconceptions which are growing up around IPDB systems, and presents the authors' view of reality (informed by the opinions of the UK network of experts in ob-jects and integration (URL-1 1999) which was run by the DETR).

Keywords: integrated project database, misconception

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Full text: http://www.itcon.org/2001/5 (available to registered users only)

Series: itcon:2001 (browse)
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Hauch P

One-dimensional CAD-drawing - twentyfive years en route towards integrated modelling.

Abstract: It all started twenty years ago with the implementation of industrial and mechanical CAD-drawing systems in the Construction Industry. Even at that time we focused on the wonderful perspectives of integrating design, production processes and FM using integrated systems, based on a "digital building model" and "object oriented modelling". The vision and the goals for the use of IT in the Construction Industry have been extremely stable over the years - much more stable than the development of IT. For many practical reasons we started out by focusing on drawings and on building bridges between the "islands of automation" in the construction industry. Data exchange between CAD-systems was on the agendas for some years. But why are we still fighting the challenges of file-exchange between loosely coupled systems, and why do we still base industrial practices on the document management concept, when comparable industries have left this concept long ago? We thought, that the concept of file-exchange between loosely coupled systems would bring us closer to realising our final goals - but how far have we progressed? Are we closer to integrated modelling today? How far have we progressed when it comes to implementation in the industry? The author takes a close look at the development and the use of IT in practice in the Danish Construction Industry and in numerous development programmes. He summarises on the lessons learnt in different areas like: Industrial IT- strategy, ITand CAD-solutions, conditions for integration, workflow, collaboration and business culture in the Construction Industry. He relates to the development in other industrial areas and to the development of IT-systems and tools to support the concept of integrated modelling and points at development needs. The author elaborates on the ideas of information modelling in 1D-, 2D-, 3D-,4D-, and up to 8D (?), dealing with three dimensions, properties, relations, space, place and time, and asks the question, if we have to go through all these steps to reach our goal. The conclusion is, that the industry is facing a shift in paradigm in order to fulfil its goals on integrated modelling, and that there is no easy way. The more we focus on file-exchange between loosely coupled systems and on the document management concept the further we must travel, and the greater the risk, that we will never reach our goal.

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Full text: content.pdf (26,980 bytes) (available to registered users only)

Series: w78:2002 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.store (0.026678) class.communication (0.021686) class.deployment (0.018597)
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Permission to reproduce these documents have been graciously provided by the Aarhus School of Architecture, Denmark. The assistnace of the editor, Prof. Kristian Agger, is gratefully aprecciated.


M Yu Kononova & OG Nikonova

GIS - based DSS for sustainable infrastructures and management of tourism in the Leningrad Region

Abstract: The paper deals with analysis of a wide-sense role of GIS - based decision support system (DSS). Formalisation of approach towards preparation and realisation of visualisation of tourism infrastructure of Leningrad Region for ensuring stable development of territory is given. The meaning of the GIS -based DSS as a system-forming part of the geoecological account (monitoring, management and audit) of tourism infrastructure within the frame of monitoring area and territory is shown.

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Full text: content.pdf (444,463 bytes) (available to registered users only)

Series: w78:2005 (browse)
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Permission to reproduce these papers has been graciously provided by the Technische Universitšt Dresden.


Martin Ruess

Stable And Reliable Computation Of Eigenvectors Of Large Profile Matrices

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Full text: content.pdf (510,162 bytes) (available to registered users only)

Series: w78:2006 (browse)
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