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This book constitutes the proceedings of the 5th International Conference on Decision Support Systems Technologies, ICDSST 2019, held in Madeira, Portugal, in May 2019. This year the conference is a EURO mini conference and therefore has a slightly different acronym: "EmC-ICDSST 2019".

The EWG-DSS series of International Conference on Decision Support System Technology (ICDSST), starting with ICDSST 2015 in Belgrade, was planned to consolidate the tradition of annual events organized by the EWG-DSS in offering a platform for European and international DSS communities, comprising the academic and industrial sectors, to present state-of-the-art DSS research and developments, to discuss current challenges that surround decision-making processes, to exchange ideas about realistic and innovative solutions, and to co-develop potential business opportunities.

The main topic of this year´s conference was "Main Developments and Future Trends". The 11 papers presented in this volume were carefully reviewed and selected from 59 submissions. They were organized in topical sections named: decision support systems in societal issues; decision support systems in industrial and business applications; and advances in decision support systems´ methods and technologies.

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Decision Support Systems in Societal Issues.- Forecasting Emotions in Refugee and Migrant Communities for Site Management Support Using Fuzzy Cognitive Maps.- Facility Location Problem in Public Safety Area.- A decision support system for urban transport planning based on dynamics, correlations and causalities among road paths.- Value-chain wide food waste management: a systematic literature review and recommendations for future work.- Decision Support Systems in Industrial and Business Applications.- Time-aware Knowledge Graphs for Decision Making in the Building Industry.- A conceptual business process entity with lifecycle and compliance alignment.- How to support group decision making in horticulture: An approach based on the combination of a centralized mathematical model and a Group Decision Support System.- Advances in Decision Support Systems´ Methods and Technologies.- Intelligent Multicriteria Decision Support System for a Periodic Prediction.- Assessing multidimensional sustainability of European countries with a novel, two-stage DEA.- Logik os: Augmenting the web with multi-criteria decision support.- Dynamic-R: a new convincing multiple criteria method for rating problem statements.

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