Once the data warehousing system goes live, there are often needs for incremental enhancements.
I am not talking about a new data warehousing phases, but simply small changes that follow the
business itself. For example, the original geographical designations may be different, the
company may originally have 4 sales regions, but now because sales are going so well, now they have 10
- Change management documentation
- Actual change to the data warehousing system
Because a lot of times the changes are simple to make, it is very tempting to just go ahead and
make the change in production. This is a definite no-no. Many unexpected problems will pop up
if this is done. I would very strongly recommend that the typical cycle of development --> QA -->
Production be followed, regardless of how simple the change may seem.