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G. Paskaleva, T. Lewis, S. Wolny, T. Bednar:
"SIMULTAN as a Big-Open-Real-BIM Data Model - Evolution of Virtual Building from Design through Construction into Operation Phase";
Poster: CIB WBC 2019 - CIB World Building Congress 2019 'Constructing Smart Cities', Hongkong; 17.06.2019 - 21.06.2019; in: "CIB World Building Congress 2019 Constructing Smart Cities", (2019), ISBN: 978-962-367-821-6; 10 S.

The goal of Building Information Modeling (BIM) is the uninterrupted use of digital construction models from the planning stage onwards. As the operation phase approaches, the involved processes become increasingly complex. Stakeholders work at varying pace and utilize highly specialized tool chains that need to communicate seamlessly with each other. BIM aims to satisfy those needs. However, even the most extensive Open BIM standard - IFC- does not provide the necessary data structure, in spite of its more than one thousand different types, because its focus is the planning phase. Our approach, SIMULTAN, in contrast to IFC, consists of less than 50 different basic types. They can be dynamically combined to increasingly complex models, which can themselves be used as prototypes for other models. This enables each domain expert to create custom data structures for any specific task, which are automatically compatible with data structures of other stakeholders. In this way, unlike IFC, our data model removes the long wait for the next implementation cycle to be completed by developers. Furthermore, it shortens the training time and facilitates the loss-, corruption-, and conflict-free exchange of information between domain experts, which is a key aspect of BIM.
As proof of concept, we present the evolution of the virtual building model from the construction to the operation phase. In each phase, stakeholders enrich the data model with the information they need for, e.g., analyses. Our approach considers the needs of the operation phase and works towards the construction and commissioning phases to set up the necessary data infrastructure by collecting information at every stage, from every stakeholder and considering inter - dependencies, potential conflicts and threats to model consistency.
Results show that the flexible data model of SIMULTAN can be adapted to the task. It can handle structured as well as unstructured data.

data model, operation phase, BIM, building automation, Evolution of Virtual Building

http://www.bre.polyu.edu.hk/CIBWBC2019/proceedings.html