Defining Customizable Business Processes without Compromising the Maintainability in Multi-tenant SaaS Applications

In Software-as-a-Service (SaaS) delivery model a vendor maintains a single application instance, which is used by multiple tenants. However, due to changing business requirements tenants expect customizations. Providing such customizations is trivial to retain tenants but a challenge to the vendor due to multi-tenancy. In this paper we present an approach to define such customizable business processes in multi-tenant SaaS applications without unnecessary and hard to maintain duplication of process definitions and deployments.