1. A language supporting concurrency through {message passing} to named message queues from {ParaSoft} CorporATion . 2. DATa definition language, meant to become an ISO standard for product dATa representATion and exchange. TC 184/SC4 N83, ISO, 1991-05-31. E-mail: . 3. A dATa modelling language adopted by the ISO working group on STEP.