Multi-Tenancy: A Concept Whose Time Has Come and (Almost) Gone Topics: Application, Research project and Internet Technology; Application, Research project and Service Based IS; Architectural Patterns for Services; Methodologies for Services and Architecture ; New Advances in Service based Technologies; New Trends in Internet Technology; Pay as you go, Pay per use; Technical Infrastructure for Services ; Technical Infrastructures Suporting Web Applications ; Web Services and Web Engineering In Proceedings of the 14th International Conference on Web Information Systems and Technologies WEBIST - Volume 1, 316-323, 2018 , Seville, Spain