Finite State Machine based Access Control Mechanism for Web Service Work Flow Management

Enterprises implement their business process as web services in order to meet the market demand. Typically composite business process requires collection of services under composition along with real time access control to provide the integrated functionalities to the consumer by orchestrating the service functionalities in a meaningful manner. Composite services often need to change their execution order under various circumstances based on the business requirements. In Enterprise view order of execution of rules associated with the single service or composite services can be altered dynamically that in turn leads to the many issues such as functionality variation, authentication failure, loss of composition factors, work flow inconsistency and SLA violation. The proposed ac ess control mechanism built over the dynamic work flow management of web service business logic overcomes the issues and provide the secure environment for the enterprises. This fast and efficient access control mechanism is implemented using Finite State Machine, in which the states of the FSM stores the additional attribute called Access Point through that the transition from one state to another state determines the required access control is set to true or false.