A comparison of multi-tenant data storage solutions for Software-as-a-Service

Software-as-a-Service (SaaS) is now a hot issue in both academia and business. Multi-tenant data storage as a fundamental component of a SaaS system draws much attention. The need of scalability and multi-tenant support in SaaS makes traditional RDBMS unappealing and calls for a better data storage solution. In this paper, we categorize some proposed solutions and evaluate the performance of a Native XML Database (NXD) solution implemented on Berkeley DB XML. Experimental results show that the opportunity of applying NXD in SaaS has not yet arrived.