An Implementation of the SaaS Level-3 Maturity Model for an Educational Credit Bank Information System

In the past few years, software as a service (SaaS) has had a tremendous impact on the software industry. More and more enterprises, especially small and medium businesses (SMBs), are willing to adopt SaaS to construct their enterprise information applications. This paper designs and implements a credit bank information system (CBIS) based on SaaS Level 3 maturity model. Credit bank is a service provided by authorized education organization so that customers can save, manage and exchange education credits. In the CBIS, each authorized education organization is a tenant and each organization has multiple students (end users). Firstly the SaaS maturity model is discussed in details. Secondly a SaaS solution in level 3 is proposed together with the multi-tenant database design and configuration policy. Finally the functions of the CBIS are given. The CBIS is built with service oriented architecture, in which business functions are mapped into web services. In this way the CBIS can integrate with other systems easily.