Service oriented computing : 20th International Conference ICSOC 2022 Seville Spain November 29 December 2 2022 proceedings This book constitutes the proceedings of the 20th International Conference on Service Oriented Computing ICSOC 2022 held in Seville Spain in November December 2022.The 29 full 15 short and 4 vision papers included in this volume were carefully reviewed and selected from 221 submissions. They were organized in topical sections named: service modeling and mining; quality of service; microservices; service personalization recommendation and crowdsourcing; blockchain; IoT and green computing; services for cloud edge and fog computing; artificial intelligence and machine learning for service computing; vision papers