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Fischer M, Stone M, Liston K, Kunz1 J, Singhal1 V

Multi-stakeholder collaboration: The CIFE iRoom

Abstract: The CIFE iRoom is a collection of linked software and hardware that allows users to readily structure, display and manipulate the various information used to design and implement a large construction project. The objectives of this research are to define and evaluate new ways for project teams to interact with and visualize project information to facilitate fast and effective decision-making. This paper summarizes the CIFE iRoom infrastructure and gives examples of its use. It shows the importance of separating a model from its view and from its control and of visualizing relationships across different views to conveniently view and compare alternative states of a project model simultaneously.

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Full text: content.pdf (966,473 bytes) (available to registered users only)

Series: w78:2002 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.communication (0.036680) class.man-software (0.023192) class.man-man (0.009241)
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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.


Froese T, Q YU K, Liston K, Fischer M

System architectures for AEC interoperability

Abstract: "This paper discusses several issues relating to computational system architectures to support interoperability among distributed, model-based AEC/FM applications. The approach is based on tiered layers where applications interact with local “Building Objects” software components that, in turn, interact with a variety of distributed data repository alternatives in a data layer. International Foundation Classes (IFCs) models are used as the primary data model in each of the layers and communication between layers uses several XML standards. One issue is an approach to multiple meta-models within the many components of a distributed system. IFCs focus on strongly-typed models that describe AEC concepts and objects in an explicit manner. One of the requirements for applications that implement IFCs is that they must understand the semantics of the IFCs and map the IFC models to the application internal application models. However, software applications used in AEC processes are not always based on an internal model that can be explicitly mapped to a strongly-typed model such as the IFCs at development stage. Instead, it is common that some of the applications are either purely generic without an explicitly defined domain schema, or generic enough so as they must deal with run-time databases whose schemas cannot be pre-defined during the development of the applications. In order to allow this type of software to share and exchange data with other applications through the models such as the IFCs, data schemas must be mapped at a higher and abstract level that allows for run-time model schema configurations and mappings. The Interactive Workspace for Project Management (IWPM) is a CIFE (Center for Facilities Engineering) project that integrates several research decision support systems, commercial project management systems, and advanced collaborative human-computer interaction approaches using emerging industry data standards and internet technologies. To illustrate an example of using the meta-model approach, the paper applies the use cases in IWPM to demonstrate how meta-models can be used to implement IFC project management related models in such an integrated software environment."

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Full text: content.pdf (595,267 bytes) (available to registered users only)

Series: w78:2000 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.represent (0.049095) class.standards (0.036666) class.communication (0.035658)
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Permission to reproduce these documents have been graciously provided by Icelandic Building Research Institute. The assistance of the editor, Mr. Gudni Gudnason, is gratefully appreciated


Liston K., Fischer, M. and Winograd, T.

Focused Sharing of Information for Multidisciplinary Decision Making by Project Teams

Abstract: Today's electronic and paper-based approaches to the sharing of project information do not scale to the information sharing and interaction challenges of multi-disciplinary project team meetings. The inability to share and interact with information easily and effectively is one of the biggest bottlenecks in using electronic (online) information for collaborative decision-making. Through scenarios from recent construction projects, this paper summarizes existing approaches to the sharing of information and assesses their effectiveness in supporting multi-disciplinary decision-making by project teams. It then discusses recent research into interactive information workspaces where, with minimal software overhead, participants can share information that is relevant to a particular context to establish a common focus. We believe that the construction community can make significant progress quickly in leveraging existing and future investments in information infrastructure if it not only pursues information sharing through the use of product models but also formalizes the focused sharing of information and separates information interaction and view control from software services and underlying data as outlined in this paper.

Keywords: Interactive Workspaces, Product Modeling, Human-Computer Interaction, Decision Support, 4D Modeling

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Full text: http://www.itcon.org/2001/6 (available to registered users only)

Series: itcon:2001 (browse)
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