There is no doubt that working collaboratively is key for BIM projects. However, there are two approaches for collaborative BIM: closed BIM and open BIM. This article describes these two approaches and highlights the importance of protocols such as COBie ad IFC.
In the BIM world, the word interoperability is often used. This article explains what this buzz word means and how it translates into practice. It also presents not only the advantages but also the limitations of such approach.