engine support
3.The runtime engine is studied, and the idea that support the soft components running with runtime engine is presented, the runtime engine was divided as: deployment management entity (DME), events connector management (ECM), real time database and data connector management, function block type library, a set of function block container (FBC).
8.The principal research achievements are as follows:(6) The infrastructure and development mechanisms of ACIS geometry engine are studied. The key technological issues dealing with the support of ACIS for the development of NC programming system are solved, which provides the sound basis for the development of MC machining programming system based on solid models.

