Daniel Mellado holds a PhD and MSc in Computer Science from the Castilla- La Mancha University (Spain) and holds a degree in Computer Science from the Autonomous University of Madrid (Spain), and he is Certified Information System Auditor by ISACA (Information System Audit and Control Association). He is Assistant Professor of the Department of Information Technologies and Systems at the Rey Juan Carlos University (Spain). He participates at the GSyA research group of the Department of Information Technologies and Systems at the Castilla- La Mancha University. He is civil servant at the Spanish Tax Agency (in Madrid, Spain), where he works as IT Auditor Manager. His research activities are security governance, security requirements engineering, security in cloud computing, security in information systems, secure software process improvement and auditory, quality, and product lines. He has several dozens of papers in national and international conferences, journals, and magazines on these subjects and co-author of several chapter books. He belongs to various professional and research associations (ASIA, ISACA, ASTIC, ACTICA, etc.).
Luis Enrique Sánchez is PhD and MsC in Computer Science and is an Assistant Professor at the Escuela Superior de Informática of the Universidad de Castilla- La Mancha in Ciudad Real (Spain) (Computer Science Department, University of Castilla La Mancha, Ciudad Real, Spain), MSc in Information Systems Audit from the Polytechnic University of Madrid, and Certified Information System Auditor by ISACA. He is the Director of Professional Services and R&D departments of the company Sicaman Nuevas Tecnologías S.L. COIICLM board or committee member and responsible for the professional services committee. His research activities are management security system, security metrics, data mining, data cleaning, and business intelligence. He participates in the GSyA research group of the Department of Computer Science at the University of Castilla- LaMancha, in Ciudad Real (Spain). He belongs to various professional and research associations (COIICLM, ATI, ASIA, ISACA, eSEC, INTECO, etc).Eduardo Fernández-Medina is PhD and MSc in Computer Science. He is Associate Professor at the Escuela Superior de Informática of the Universidad de Castilla- La Mancha at Ciudad Real (Spain). His research activities are security requirements, security in databases, data warehouses, web services and information systems, and also in security metrics. He is the co-editor of several books and chapter books on these subjects, and has several dozens of papers in national and international conferences. He leads the GSyA research group of the Department of Information Technologies and Systems at the University of Castilla- La Mancha, in Ciudad Real (Spain). He belongs to various professional and research associations (ATI, AEC, AENOR, IFIP, WG11.3, etc.).
Mario G. Piattini is MSc and PhD in Computer Science from the Politechnical University of Madrid. He is certified information system auditor by ISACA (Information System Audit and Control Association). He is Associate Professor at the Escuela Superior de Informática of the Castilla- La Mancha University (Spain). He is author of several books and papers on databases, security, software engineering and information systems. He leads the ALARCOS research group of the Department of Information Technologies and Systems at the University of Castilla- La Mancha, in Ciudad Real (Spain). His research interests are: advanced database design, database quality, software metrics, object-oriented metrics and software maintenance.