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What are the expected results of 4DCollab?

The project end-product(s) and the expected results are of three different kinds: knowledge, specification of a new 4D CAD interaction system and the assessment analysis after validation of the proposed prototype.

Knowledge produced will describe and conceptualize:

• The identification of business value of the novel BIM approach for construction practitioners.
• Observations about work practices, technological usages and Human-Computer interactions in
real collaborative 4D experiment sessions.
• Innovative usages that can be imagined by business experts with both new BIM-based
working methods and natural user interfaces, thanks to creativity approach.

Specification of an interactive system will describe and conceptualize: a multi-users 4D CAD interaction system, using recent touch-based technologies, e.g. a
touch-based tabletop device, for taking into account time in the early stage of architectural

This system will be prototyped.

It will be a “tangible” result, which will be potentially transferred to construction practitioners after the project. Specifications will also deal with BIM-based information system functionalities.

The validation of the proposed prototype with business actors is considered an important output of the project, particularly because the proposed research is user centered and requires an “experimental” approach as well as a field approach:

• The designed prototype will be evaluated by testing and assessing it in a final experiment
carried out with professionals.
• The prototype will also be evaluated in terms of its added value for the

Within 4DCollab, scientific publications are expected to disseminate the scientific results to research communities. Sectorial communications are planned with professional publications and conferences.

Case study: focus on th experimental prototype

Based on the iterative development of the prototype that will implement new interaction techniques, two experiments of this system in pre-building phase of a real construction project are considered: the first one with 4DCollab French industrial partner and the second one with the project's Luxembourger industrial partner.

After these two experiments, the project team will evaluate the usability of the innovative interaction technics implemented but also the added value of these usages and practices of the 4D in a construction project. They will allow researchers to question the articulation of user-centered methods in a prospective ergonomics approach.

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