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1st class

** MSBI---it is used for analyzing a business i.e decision making(how to increase profits, how to increase business ex: providing discounts based on less sold months)

** To analyze a business we need summarized data i.e non detailed data which comes from detailed data

** Detailed data is each and every transaction(OLTP) and it present in operational system.

** MSBI is a set of technologies used for decision making and it consists of SSIS, SSRS, SSAS.

** SSIS- SQL Server integration services , it is an ETL used to load data from operational system into dataware house

**Data in operational s/m consists of different forms i.e flatfile, excel, database. We need to integrate and provide them in a single dataware house, it can be done through ETL tools.

** SSRS-SQL Server reporting services,

** User expects data to be user friendly i.e wish to see data in easy reports than writing queries again to extract from Dataware house. So Reporting services help to do this.

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