This book constitutes the refereed proceedings of five workshops and a symposium, held at the 36th International Conference on Conceptual Modeling, ER 2017, in Valencia, Spain in November 2017.
The 21 revised full papers were carefully reviewed and selected out of 47 submissions to the following events: 

• AHA 2017 - 3rd International Workshop on Modeling for Ambient Assistance and Healthy Ageing
  
• MoBiD 2017 - 6th International Workshop on Modeling and Management of Big Data
  
• MREBA 2017 - 4th International Workshop on Conceptual Modeling in Requirements and Business Analysis
  
• OntoCom 2017 - 5th International Workshop on Ontologies and Conceptual Modeling
  
• QMMQ 2017 - 4th Workshop on Quality of Models and Models of Quality