Tabular Model is a new data model introduced in SQL Server 2012 Analysis services. Tabula Models are in-memory databases which uses analytic engine named (VertiPaq) which delivers fast access to data to client applications like Excel and Power View. This post describes the differences between Tabular Model and Multidimensional model and outlines which model to choose and when over the other. It is required to understand the new BISM(Business Intelligence Semantic Model) in SQL Server 2012. This model was designed for easy access of data to all client tools like Excel, Power View and Power Pivot.