The Test Plan for Applications
You must test your applications with the new version of Ingres before performing a production upgrade. The cost of testing every function in every application can be prohibitive, but fortunately, such testing is rarely necessary. A proper test plan can reduce testing time to a week or two.
A successful test plan uses the following process:
1. Rank the importance of each function in each application.
2. Test only the most important functions of each application.
3. Fix problems found after the upgrade as quickly as possible.