“…The optimization of application, server, and database resources is to produce the ideal multi-tenant model. The widely applied multi-tenant model is focused on the concept of SaaS [1], [9], [11], [12], the design and implementation of multi-tenant database schemas, such as private tables, extension tables, universal tables, distributed databases and database replication [12]- [14], virtual machines [3], network security [10], [15], multi-tenant monitoring [6], [16], e-commerce [1], [11], [17], and Blockchain-based services [2], [18].…”