To be efficient, companies need a framework of combined and coherent processes, methods, and tools. We developed a tool to manage a product line. As for system engineering, the key success factor is to make people working in different domain understand each other and communicate efficiently, it is crucial to provide graphical intuitive views. The platform under development enables both, to construct a product line, with its associated PBS and then to be easy to use when choosing a configuration, by users with basic system knowledge. Configuration is easy as the visual is graphical and allows to describe a complete product line with its different possibilities as described in [6]. Our platform aims also at creating system product lines that satisfy the properties given above.