FITradeoff Based Analysis of Cultural Tourism Products Regarding Post-Industrial Heritage in Czeladź Commune in Poland -- The worth of cardinal information in MCDM - a guide to selecting weight-generating functions -- Efficiency of competitiveness evaluation of medium-lift launch vehicle (MLV) using integrated DEA-TOPSIS model -- Japanese port alliance: Cooperative game theory analysis -- Improving the Elicitation Process for Intra-criterion Evaluation in the FITradeoff Method -- Manufacturing Execution System Selection by Use of Multicriteria Partial Information Method -- Incorporating Hierarchical Criteria Structure in the FITradeoff Method -- A user interface for consistent AHP pairwise comparisons -- A Problem Structuring Multimethodology to Support a Post-graduation Course on Implant Dentistry. .

This book constitutes the refereed proceedings of the Third International Meeting on Innovation for Systems Information and Decision, INSID 2021, which was held during December 1-3, 2021. The conference was initially planned to take place in Recife, Brazil, but changed to a virtual meeting due to the COVID-19 pandemic. The 9 full papers presented in this volume were carefully reviewed and selected from a total of 76 submissions. They reflect methodological improvements and advances in multi-criteria decision-making/multi-criteria decision-aid (MCDM/MCDA) oriented toward real-world applications, which contribute to the understanding of relevant developments of current research on and future trends of innovation for systems information and decision.