Fig. 2. Typical co-engineering process roles and tasks.

Fig. 2

Note: Each phase of the co-engineering process, that is, co-initiation, co-design, and co-implementation, leads on to the next and also to the realization of the participatory planning process. Feedback and iterations between co-engineering phases and during the participatory planning process are possible. Typical magnitudes of influence of processes on each other are represented by varying arrow widths.