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Paper w78-2005-d4-4-kiviniemi:
Multi-model Environment: Links between Objects in Different Building Models

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A Kiviniemi, M Fischer & V Bazjanac

Multi-model Environment: Links between Objects in Different Building Models

Abstract:The current IFC specifications include relations between objects and enable representation of complex structures in a building product model. However, several research projects have addressed the problem of one integrated model by pointing out the different content and structure of different design domains. The existing software products cannot support all features of the IFC specifications, and because of the structure of AEC industry there are no potential customers for applications which would cover all different information needs. We believe that there will be several instantiated models representing a building project, and these models share some parts of the information which must be linked between the models. However, IFC specifications do not enable links between objects in separate instantiated models. This paper will (1) discuss the reasons for the separation of instantiated models, (2) present the necessary extensions of the IFC specifications, (3) include examples of the links between the requirements model and architectural design model, and (4) discuss some possibilities how to implement this link in a model server environment.

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