This book constitutes the thoroughly refereed proceedings of six international workshops held in Tallinn, Estonia, in conjunction with the 30th International Conference on Advanced Information Systems Engineering, CAiSE 2018, in June 2018.These workshops were:– The 5th Workshop on Advances in Services DEsign based on the Notion of Capability (ASDENCA)– The 1st Workshop on Business Data Analytics: Techniques and Applications (BDA)– The 1st Workshop on Blockchains for Inter-Organizational Collaboration (BIOC)– The 6thWorkshop on Cognitive Aspects of Information Systems Engineering (COGNISE)– The 2nd Workshop on Enterprise Modeling – The 1st Workshop on Flexible Advanced Information Systems (FAiSE)Two more workshops decided to produce their own, independent proceedings.The 22 full papers presented here were carefully reviewed and selected from a total of 49 submissions.