High Quality Content by WIKIPEDIA articles! Whilst many OLAP Servers such as Microsoft Analysis Services store pre-calculating consolidations and calculated elements to achieve rapid response times. A Real Time OLAP Server will calculate the values on the fly, when they are required. The essential characteristic of RTOLAP system is that it holds all the data in RAM. Microsoft Analysis Services is part of Microsoft SQL Server, a database management system. Microsoft has included a number of services in SQL Server related to Business Intelligence and Data Warehousing. These services include Integration Services and Analysis Services. Analysis Services includes a group of OLAP and Data Mining capabilities. In 1996, Microsoft began its foray into the OLAP Server business by acquiring the OLAP software technology from Israeli-based Panorama Software. Just over two years later, in 1998, Microsoft released OLAP Services as part of SQL Server 7. OLAP Services supported MOLAP, ROLAP, and HOLAP architectures, and it used OLEDB for OLAP as the client access API and MDX as a query language. It could work in client-server mode or offline mode with local cube files.