Bráulio Alexandre Barreira Alturas was born in Lisbon in 1964, but has always lived in Queluz, has a PhD in Business Management with a specialization in Marketing (2005), a Master's Degree in Business Sciences with specialization in Management Information Systems (1995) and Degree in Business Organisation and Management(1989), by ISCTE-Instituto Universitário de Lisboa. He is currently Associate Professor at the ISCTE-Instituto Universitário de Lisboa Information Science and Technology Department, and researcher at ISTAR-Iscte (Information Sciences, Technologies and Architecture Research Center). Coordinator of several curricular units of Informatics Applied to Management and Social Sciences and professor in Masters and Postgraduates, as well as a trainer in the area of Organizational Information Systems.

Nuno Guimarães, Full Professor (Professor Catedrático) at ISCTE-IUL, graduated in Electrotechnical Engineering at the Technical University of Lisbon, Instituto Superior Técnico, Portugal, in 1983, where he also completed his MsC (1987) and PhD (1992). He received the title of Agregado em Informática in July 1999, from the University of Lisbon. From 1986 to 1997, he taught at the Electrotechnical and Computer Engineering Department of IST/UTL, and from 1997 to 2012 at the Informatics Department of the Faculty of Sciences, University of Lisbon. He was Dean of the Faculty of Sciences of the University of Lisbon (2003-2009). Since 2014 he is Visiting Scholar at the Indian Institute of Technology in Gandhinagar, India. In 2010, he was Invited Professor at the Technical University of Berlin, Institut für Psychologie und Arbeitswissenchaft, Fak V - Verkehrs- und Maschinensysteme. --- From 1982 to 1997, he was a researcher of INESC, Instituto de Engenharia de Sistemas e Computadores, Lisbon, Portugal, and is a member of LASIGE/FCUL since 1997. From 1989 to 1991, he was a consultant for Bell Labs, AT&T, Murray Hill, New Jersey, "Software Systems Principles Research Lab''. He was a member of Executive Board of PUUG (Portuguese Unix Users Group)(1992-1998), one of the individual founders of Eunet Portugal, later KPNQwest Portugal. From 1996 to 2001, he co-founded of Ergoprocesso (Consulting services), 4VDO - Sistemas e Serviços Multimédia SA (Video indexing services) and OnTV - Sistemas e Serviços de Televisão Interactiva SA (Interactive Television Systems integrator). --- ACM Senior Member (since 2012), Member (Chair of the Board 2021-2025) of ISOC (PT).