Open issues on privacy and trust in collaborative environments

Exploiting the advantages of Web 2.0 technologies and collaborative applications and tools such as wikis, blogs, forums, real-time text editors and other groupware systems, modern services and Information Systems have evolved towards collaborative and social environments where user-generated content is a common task. In this paper we will identify the additional privacy and trust requirements posed by collaborative knowledge tools and suggest a number of guidelines for the development of privacy-aware Identity and Access Management systems that are capable to ensure trust in the context of collaborative workspaces.