Some changes have been good since the Oracle acquisition, particularly in terms of product development, Williams said. "The service packs are coming out quicker, things are getting fixed and new features are getting added."

Things have also improved as Primavera customers formed relationships with other Oracle customers, Williams said. The Primavera SIG works closely with the Oracle Applications Users Group and Quest International Users Group.

Ultimately, customers who find one of their vendors acquired by Oracle should try to link arms with peers who use similar software products sold by the company, Williams said. That should help them transition to Oracle's way of doing business.

The IDG News Service