Graduate in Law, Univ. of Zaragoza, 1975. Doctor in Law, Univ. of Zaragoza, 1981. Doctoral thesis on “The political consequences of the introduction of liberalism in Spain (1808-1814)”. Postdoctoral studies in Frankfurt an Main (1980-81). Most important research stays in the Universities of Bremen (1984), Louisiana State Law Institute (1986) and Münster (1987). From 1985 Professor Titular of Philosophy of Law, University of Zaragoza, Spain. Acredited as Catedratico by the Spanish Acreditation Authority (ANECA). Teaching on “Philosophy of Law”, “Law and Computers” and “Ethics and legislation for engineers”. From 1986 until 1997 responsible of postgraduate courses of “Law and Computers” for Spanish and Ibero-American jurists. From 1984 responsible of researches and advice for Public Administrations and Industry on “Law and Computers”. Most important topics: “Legal databases and Artificial Intelligence” (1984-1994), “Computers, Communications and Public Administrations” (1994-96), “Regulation of digital signature and implantation of certification services providers” (from 1997). Joint researches in 1992-93 with the University of Linz (Austria) and in 1995-96 with the Queen?s University of Belfast (North Ireland). From 1984 responsible of researches and advice for Public Administrations, Judicial Power and Industry on “Law and Computers”. President of the “APTICE – Association for the Promotion of the Information Technologies and the Electronic Commerce”.  APTICE is a non profit association that has as principal object the creation of a Stamp of Guarantee of the Electronic Commerce and Electronic Government (AGACE). From 1999 coordinator of the Network “LEFIS – Legal framework for the information society”, supported by the European Union, Socrates Programme. Coordinator of the Law&ICT Shared Virtual Campus. Coordinator of the research group “Data protection and electronic signature”. Author of more than 140 publications. Editor and coeditor of the books: Advances in Electronic Government (2000), E-Government: Legal, Technical and Pedagogical Aspects (2003), Electronic Government (Special Issue of the International Review of Law Computers & Technology, 2004) and Gobierno, derecho y tecnología: las actividades de los poderes públicos (2006). Director of the LEFIS Series.