Domino and Exchange are easy to start. Workplace is moderately easy (or, at least, the start procedure is well documented). None of these things are true of Oracle Collaboration Suite (OCS).
There are actually three separate OCS tiers: the database itself, the infrastructure tier, and the midtier, which is actually where most of OCS functionality is implemented. The problem is that you have to already be an Oracle DBA to know which services to start in what order. The documentation describes the process in general terms, but Oracle was kind enough to provide sample scripts to do the job for you: search Oracle’s docs for “ocsctl_sample” and you’ll find them.
One side note: if you’ve done a one-box install, you must manually reset the ORACLE_HOME environment value before running ocsctl_sample (or its equivalent) because the infrastructure and application components go in two separate places.
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