This document summarizes a presentation given by Yme Bosma from Hyves on data quality. The presentation discussed how Hyves makes it easy for users to log into over 500 websites using their Hyves account through features like OpenID, OAuth, APIs, and social plugins. This single sign-on capability provides value by simplifying login processes and ensuring a consistent online identity and interactions across multiple sites. The presentation then opened for any questions, suggestions, or doubts from the audience.