1. Data structure Manager. An object-oriented language by J.E. Rumbaugh and M.E. Loomis of GE, similar to C++. It is used in implementation of CAD/CAEsoftware. DsM is written in DsM and C and producesC as output. ["DsM: An Object-Relationship Modeling Language", A. shah et al, sIGPLAN Notices 24(10):191-202 (OOPsLA ' 89) (Oct 1989)]. 2. DIGITAL standard MUMPs. (1995-01-10)