The article focuses on specificities of building construction stage as cooperative activity. We identify lacks and limits of coordination methods at present used in the building construction stage. Our propositions consist firstly of a model to represent and describe the cooperative activity in a construction project. Then we analyse the use of the point of view concept to develop interfaces with users of a new tool. Finally, we discuss about the role of the image in assisting the transmission of coordination information during building construction. These analyses allow us to develop a prototype tool to assist transmission of the information usually contained in the building construction meeting report. We describe finally the experimentation of this tool in a real project, at present in progress.
