BI

Business Intelligence:
Business intelligence is a set of methodologies, processes, architectures, and technologies that transform raw data into meaningful and useful information used to enable more effective strategic, tactical, and operational insights and decision-making.

Elements of BI:

• Dimensional modeling
• Data quality
• Data integration
• Data warehousing 
• Master-data management
• OLAP model
• Reports & Dashboards
• Visualization
• Descriptive analytics

BI tools in the market
Oracle BI
Cognos
SAP BO, BW
MSBI - SSAS, SSRS
Power BI
Tableau
Qlikview
Microstrategy

ETL tools
ODI
Informatica
Talend
Datastage