With what, last time we looked, came to 15 acquisitions under its belt since August 1994, Oakbrook Terrace, Illinois-based Platinum Technology Inc is at it again and this time has swallowed software change and configuration management tools outfit Softool Corp and object software house Protosoft Inc. Platinum will fold Santa Barbara, California-based Softool's change management offerings, including CCC/Harvest for application change management, CCC/LCM for MVS, CCC/Manager for the enterprise and QuikTrak for spreadsheets and word processing into its Application Development Software product division. Softool's offerings cover Unix, Windows, OS/2, Windows NT, MVS and VAX/VMS. The deal involved Platinum exchanging $25m in shares for Softool. And it is also adding privately-held Houston, Texas-based Protosoft's Paradigm Plus to the same division, acquiring almost all of the assets of Protosoft for $30m in cash, and $10m in shares. Paradigm Plus is an engineering tool for Windows personal computers and Unix, and is presently integrated with Object Design Inc's database which it uses as a repository. Platinum will integrate Paradigm Plus with its own repository, and integrate its construction tools AionDS and ObjectPro and its three-tier testing tool Final Exam with the product.