Carlos is an IEEE and ACM Member. He is the Chair of EuroSIGDOC/ACM. He was the president of the ACM Conferences Scientific Commission and EuroSIGDOC/ACM. Carlos holds a PhD in Information Sciences and Technologies, specialization in Information Systems and Database by ISCTE; he holds an MSc in Management Sciences by ISCTE and a Bcc in A.G.E. by the Portuguese Catholic University. His research interests include: Information Systems Theories, in particular the adoption of Information Systems, ERP, and Open-Source.