Some paradigms of on-line crowd-sourcing participatory methodologies are proposed, based on the analysis of online platforms. Case studies are presented in order to discuss the concrete application of the paradigms. System-of-systems scale dynamic requirements prioritisation and Impact assessment of Participative Tools and Models is addressed and recommendations included for the future implementation of on-line participatory activities. The handbook is set forth as a living document to allow its continuous evolution online.

See the attached document