Business Intelligence, the process of analyzing business data to support better decision-making, has become a necessity for most businesses in today’s competitive environment. In order to bring BI to small and mid-sized companies, there needs to be a set of affordable and easy-to-use tools at each company’s disposal. Microsoft has long had a vision and commitment to bringing the power of BI to the masses, and creating a set of tools and technologies to allow for self-service BI.
In order to realize this vision, Microsoft introduced the Business Intelligence Semantic Model (BISM), which supports two models, the traditional multidimensional model and a new tabular model.
See http://blogs.msdn.com/b/microsoft_business_intelligence1/archive/2012/10/11/blog-series-creating-bi-solutions-with-bism-tabular-part-1-of-4.aspx for the full blog post.