Service oriented computing : 17th Symposium and Summer School SummerSOC 2023 Heraklion Crete Greece June 25 July 1 2023 : revised selected papers This book constitutes the refereed proceedings of the 17th Symposium and Summer School SummerSOC 2023 held in Heraklion Crete Greece in June 25 July 1 2023. The 6 full papers and 3 short papers presented in this book were carefully reviewed and selected from 27 submissions. They are organized in the following sections as follows: Distributed Systems; Smart; and Mixed Technologies