The development of software to facilitate collaborative working among project teams has been an active research area for the last two decades. However, the recent impetus in deploying BIM in construction has brought teamwork to the forefront and, therefore, it is important to conduct an in-depth study as to how BIM could be complemented with advances in visualisation and interaction technology to

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interface based on such natural interaction styles has the possibility of producing an intuitive interface for the designers to enhance their creativity and productivity. Abstract -This paper presents the design and implementation of an interactive free-jorni 3 0 sculpting paradigm to support creative designs. This work builds on advances in large number of related technologies suchas ' multi-screen displays, constraint-based assembly modelling, deformable modelling and 2 0 sketching techniques.Another important aspect of supporting creativity is the environment where the designers carry out their design activities. Physical design workspace is the space where the designers reside, and the artefacts in it may influence the designers' creativity [2]. As suggested by design innovation ecosystem is the working environment which can enhance designers' creativity and improve Keywords: Freeform modelling, constraint modelling, and Leifer [31, an under-examined aspect of the user interaction, design workspace, computer-aided design.* 0-7803-8566-7/04/%20.00 0 2004 IEEE.

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