Is JiraService Desk an add-on for Jira (in terms of local server installation)

Question

Reason I ask: we already have Jira.  I'd like to put Jira Service Desk on the same server, but the installer is showing me folders which are identical to the existing Jira install folders.  I don't want to damage anything, but I would like to add JiraServiceDesk, and if possible, integrate it with Jira.  I don't know whether to accept the defaults or to specify separate folders during the installation.  Thanks

Mike Kite · Accepted Answer

Actually, I discovered a link inside Jira which suggested adding Jira Service Desk, with a 'try it free' caption.  So I clicked it.  It installed itself just fine and we're evaluating it now.  Problem solved.  If all software worked this well, I'd be out of a job.