Biography: Martin Alvarez-Espinar, engineer in computer science, is the W3C Spanish Office Head and Open Data expert at CTIC Technology Centre. He has broad experience in Web standards development, representing CTIC at the World Wide Web Consortium Advisory Committee. Martin has taken part in several standardisation projects, both in W3C and the European Commission's Joinup platform. He also participated in the definition of Spanish standards for interoperability among public bodies. Martín has worked as eGovernment consultant at CTIC since 2007, specialized in the Open Government field and organising dozens of public workshops and conferences on behalf of W3C and the European Commission.