Using an Existing Eclipse (or TIBCO Business Studio™) Installation
Using the bundled Eclipse software is recommended. However, you can optionally use an existing Eclipse installation. You can, for example, use the Eclipse installation provided with TIBCO Business Studio business modeling software. This option is not available with partial installers (commonly used for service pack releases).
Limiting Access to TIBCO BusinessEvents Installations
Here is another case for using an existing Eclipse installation. In some enterprises, users are given limited access to software, such as TIBCO BusinessEvents. All users, however, require full rights to the Eclipse installation because certain files are written during normal use of BusinessEvents Studio. In this case you must install Eclipse separately, in areas where users have permission to write.
See Existing Eclipse (or TIBCO Business Studio) Installation.