Some believe that the new Tabular model is easier to use than SSAS OLAP.
The latter contains a somewhat different set of tools than SSAS OLAP and a new supporting language (DAX). SQL Server 2012 contains a new BI semantic model that allows developers to create analytic databases either by using OLAP or by using a new Tabular model. SSAS OLAP offers many powerful features, although some developers view the learning curve of OLAP (and its supporting language, MDX) as very steep. For over a decade, many Microsoft database developers have used SQL Server Analysis Services (SSAS) OLAP to create database cubes for advanced business analytics.
