Thisbook constitutes the refereed proceedings of the Second InternationalConference on Decision Support Systems Technology, ICDSST 2016, held inPlymouth, UK, May 23-25. The theme of the event was "Decision SupportSystems Addressing Sustainability &Societal Challenges", organized by the EURO (Association of EuropeanOperational Research Societies) working group of Decision Support Systems(EWG-DSS).

The 15 full papers presented inthis book were selected out of 51 submissions after being carefully reviewed byinternationally experts from the ICDSST 2016 Program Committee and externalinvited reviewers. The selected papers are representative of current andrelevant research activities in various areas of decision supportsystems, such as sustainability and societal challenges; risk management and project portfoliomanagement; business intelligence and knowledge management; and technologies toimprove system usability.