A full-featured 2-D and 3-D cad program for ms-dos, microsoft windows, macintosh, and unix workstations from bentley systems, inc. Created in 1984, MicroStation is a high-end package used worldwide in environments where many designers work on large, complex projects. MicroStation Modeler is a superset of MicroStation that provides solid modelling, and MasterPiece is MicroStation's rendering and animation program.