Sharing is Caring A Decision Support Model for Multi-Tenant Architectures
M. Pors, Leen Blom · 2013
Business software is increasingly moving from a traditional on-premises deployment model to a Software as a Service deployment model. In a Software as a Service deployment model, the possession and ownership of the software application is separated from its use. The software is hosted by a Software as a Service provider, relieving the customer organization from the responsibility for supporting the software, and purchasing and maintaining server hardware for it. The service provider can achieve substantial cost savings by applying economies of scale. This involves a system where customers share services, databases or resources and is known as multi-tenancy. The option to enable multi-tenancy is not binary. There exist various multi-tenant architectures, because it can be applied at different levels in the architecture. Also, multi-tenancy is not necessarily beneficial, certain situations require a more single-tenant approach. The appropriate level