The social TAN service provides a one-time URL shortening service. It enables the user to keep in touch with people she meets, using her social network profile with the security that the shared information will only be usable for a single session for one user. At the end of the session, the link to the information is destroyed.

Abstract—Background: Understanding the condition of OSS projects is important to analyze features and predict the future of projects. In the field of demography and economics, health and wealth are considered to understand the condition of a country. Aim: In this paper, we apply this framework to OSS projects to understand the communities and the evolution of OSS projects from the perspectives ...