Abstract:

Aiming at the challenge to realize the service dynamic extension in service-oriented architecture（SOA）, a service dynamic expansion mechanism based on SOA is proposed. Services pool and service dynamic extension idea are introduced to this service dynamic expansion system model, and the services are designed into the form of services pool to be called by the system, and the system realizes the service dynamic extension by administrating the resource pool. The critical processes of the service dynamic extension rules are written in ASML（abstract state machine language）. Last spec explorer is used to test the model, validating its feasibility and validity.

Key words: service dynamic-extension, service resource pool, SOA, ASML