To provide scalable DSS and allow evolution linked to strategic and
financial restructuring, it is necessary to develop a dual structure based on
relational DatawareHousing and multidimensional Databases (Hypercubes)
:
| DataWarehouse based on Relational
Databases: |
- Concentration and basic aggregation of all enterprise data
- Data durability guarantee
- Data format and name normalization
- Codes transformation and normalization
- Data synchronization and accessibility
- Independence of DSS from operational systems
- Implementation Tools : Relational Databases (Oracle,
SQL Server, DB/2, ...)
- ETL Tools : (Extract Transform and Load) Informatica,
Sagent, ...
|
| Multidimensional Databases based on OLAP
Essbase Hypercubes : |
- Measures, ratios, aggregations and consolidations
calculations
- Request and multidimensional navigation services
- Executive Information Systems (EIS) data feeding
- Data access security
- Implementation Tools : Hyperion Essbase, DB2
OLAP server
|
| Front-End Application on PC : |
- Data presentation
- Multidimensional navigation services
- Executive Information Systems (EIS) presentation
- Worldwide data access using WEB internet technology
- Implementation Tools : Excel/ Essbase, Wired
and various Essbase front-ends
|