Oracle JD Edwards EnterpriseOne Multi-Foundation configuration is used to run at least two separate tools releases on the same installation. This is usually done to facilitate an environment or pathcode that can be updated to a new Tools Release without effecting your production environment.
It’s also a great way to remove the dependency of your production environment and non-production environments being on the same set of EnterpriseOne services. That means you can bounce non-production services without effecting production. This is great for troubleshooting as well as applying OS updates.
The easiest way to setup multi-foundation is to follow the steps outlined in the following Oracle doc: Working With Multiple Tools Release Foundations
Do you have an tips or tricks when it comes to working with EnterpriseOne Multi-Foundation?