His main research interest lies in requirements engineering, and his work spans across multiple facets of this discipline such as security, adaptation, gamification, modeling and automated reason-ing. He has published over 80 papers in international journals, conferences, and workshops; he is co-author of the "Security Requirements Engineering" book pub-lished by MIT Press in 2016. He has co-organized the iStar'14 workshop at CAiSE'14, the EMAS'14 workshop at AAMAS-2014, the RESC workshop at RE'11, the AIRE workshop at RE'16 and he will be program co-chair of the RE track of ACM SAC 2017. He has participated in numerous regional, national and international research projects, currently working on the Horizon 2020 EU project PACAS. He serves on the program committee of international conferences such as CAiSE, ER, RE:Next!, REFSQ, MODELS, AAMAS.