Online analytical process fo education sectors
- 1. OLAP-Online Analytical Process GOBALAKRISHNAN V. 2nd - MBA 22-13-123
- 2. INDEX Introduction Main purposes Important / Benefits / Advantages Types / Models Limitations / Disadvantages Characteristics Elements / Components
- 3. INTRODUCTION An Online Analytical Processing(OLAP) is system works by collecting, organizing, aggregating, and analyzing data. Organizations collect and store data from multiple data sources, such as websites, applications, smart meters, and internal systems.
- 4. INTRODUCTION The first OLAP was introducing by “Edger F. Codd. He is father of relation database. In 1975 the first OLAP product – “Express” was started & launched by information resources. In 1962 “Kennath Iverson introduces foundation of OLAP.
- 5. INTRODUTION Companies Currently using oracle OLAP : U.S. Cellular VOIS National general insurance Port of seattle LHH Tickets. com
- 6. MAIN PURPOSES OLAP cubes have two main purposes. 1st is provide business users with a data model more intuitive to them than a tabular model. 2nd is to enable fast query response that is usually difficult to achieve using tabular models.
- 7. IMPORTANTS / BENEFITS / ADVANTAGES Understanding & Improve sales Understanding & Decreasing costs of business Business - focused multidimensional data Business - focused calculations Trustworthy data and calculations
- 8. IMPORTANTS / BENEFITS / ADVANTAGES Faster decision making Non-technical user support Integrated data view Flexible , Self service reporting Speed - of - thoughts
- 9. TYPES / MODELS ROLAP - Relation OLAP models MOLAP - Multidimensional OLAP models HOLAP - Hybrid OLAP models Other Types : Web - Enabled OLAP models(WOLAP), Desktop OLAP models(DOLAP), Mobile OLAP models, Spatial OLAP models.
- 10. LIMITATIONS / DISADVANTAGES Pre modeling Which is a must Great dependence on IT Poor communication capability Slow in reacting
- 11. LIMITATIONS / DISADVANTAGES Short of interactive analysis ability Abstract model Great potential risk Data size calculations
- 13. ELEMENTS / COMPONENTS Data Warehouse ETL Tools OLAP Server OLAP Database OLAP Cubes OLAP Analytic tools
- 14. Q & A Thank you!!!