This is the first presentation to ETIS held in Brussels in November 2008
It takes a deep dive look at the problems with conventional data modelling for the data warehousing and looks at an alternative approach known as Process Neutral Data Modelling. It is a natural follow on from the previous UK Oracle User Group presentation in 2006.
The issues with conventional data models that it tries to discuss include:
- Data models take a long time to develop
- Data models are expensive to change
- The design often reflects the first or largest source system
- They often reflect current working practice
- A struggle to keep up with rapidly changing source system data models
- Reference data is often not stored in a time variant way
- History is lost with data model changes
- Queries directly on the data warehouse are complex
- Different rules apply to query each table
- Different database platforms have different needs
Download Process Neutral Data Modelling Concepts now
