The User Data Gathering Interface is a tool, which gathers information directly from the users of CAP projects participating in the assessment. The user data gathering tool shows a simple interface. Basically, it appears like is an online questionnaire structured both for single users and organizations. By using this tool, projects users will be requested to provide their opinion about the output/services they use and their potential impacts. This tool will gather also some basic information about projects users. The data gathered through this tool will be used also in the aggregated analysis of the domain, in fact it is interesting to see who are the project users in terms of working profile, age, nationality and so forth.