Coexistence refers to the installed products on the same
computer.
Package group coexistence considerations
You can install multiple compatible products into the same
package group. This is sometimes also referred to as "shell sharing".
Compatibility with other products
If you have a previous version of the product, or if you
plan to install multiple products on the same workstation, review
this information.
Extending an existing Eclipse IDE
When you install the product package, you can choose to
extend an Eclipse integrated development environment (IDE) already
installed on your computer by adding the functions that the product
package contains.