SSAS

SQL Server Analysis Services (SSAS) is a multidimensional online analytical processing (OLAP) server and an analytics engine used for data mining. It allows IT professionals to break up large volumes of data into more easily analyzed parts. SSAS is used as a tool by organizations to analyze and make sense of information possibly spread out across multiple databases, or in disparate tables or files. ETL is a process that extracts, transforms, and loads data from multiple sources to a data warehouse or other unified data repository.

SQL Server Analysis Services (SSAS) is a multi-dimensional OLAP server as well as an analytics engine that allows you to slice and dice large volumes of data. It is part of Microsoft SQL Server and helps perform analysis using various dimensions Microsoft SQL Server provides many tools to manage and utilize your data. SSAS is Microsoft SQL Server's Analysis Services which is an online analytical processing (OLAP), data mining and reporting tool used in Business Intelligence to make your data work for you.