Setting this option will mean that successful or unstable builds will be tagged in Dimensions as a baseline. You will then have a Dimensions baseline representing the built source to refer to in the future.

The baseline that gets created has a name of

[PROJECTID]_[JENKINS_PROJECT]_[BUILDNO]
by default, where
[PROJECTID]
is the name of the Dimensions stream or project being monitored.
[JENKINS_PROJECT]
is the name of the Jenkins project
[BUILDNO]
is the Jenkins build number
If a baseline name pattern is specified (in Advanced...) then the baseline that is created will reflect that baseline name pattern.

(Note: The resulting baseline name must comply with restrictions on Dimensions baseline names. For example, if the baseline name includes the Jenkins project name, then that Jenkins project name may not include the colon character).