Their respective products -- Rational Rose and ObjecTime Developer -- were then merged into a product that was rechristened Rational Rose RealTime .
At the beginning of the year 2000 , Rational Software acquired ObjecTime Limited .
Rational Software 's respective products -- Rational Rose and ObjecTime Developer -- were then merged into a product that was rechristened Rational Rose RealTime .
At the beginning of the year 2000 , Rational Software acquired ObjecTime Limited .