Microsoft Analysis Services, also known as Microsoft SQL Server Analysis Services (SSAS), is a software tool that supports business decision-making. Analysis Services is an analytics engine that mines data, analyzes it, and provides it to business reporting software such as Excel, Power BI, and Reporting Services. Analysis Services connect to different data sources, including on-premise and cloud data from SQL Server databases and warehouses, Oracle, Teradata, and APS. There are three server modes for this data engine: Tabular, Multidimensional and Data Mining, and PowerPivot. When creating tabular and multidimensional data models, wizards ease the process.