We are sorry to inform that the organizers of the workshop Data quality: how it is measured, what it affects, and how to achieve have decided to cancel the workshop. Instead we will organize an impromptu half-day workshop open for all ETRA participants  (no additional fee) on Tuesday March 25. This workshop will be a place to meet and discuss data quality issues, the content of the workshop will be dependent on the issues the participants bring to it. We hope that this workshop can serve as a starting point to discuss data quality issues. The workshop will be open to all ETRA participants who wishes to participate, when if you did not register for the workshop. If you are interested in the workshop, please email etra.conference@gmail.com so you can be added to the workshop email list for updates before the conference.