Petri nets analysis of transaction and submitter management protocols in mobile distributed computing environment

This paper proposes and discusses a simulation model of a message and transaction queuing protocol which supports submission of transactions from mobile workstations in a distributed multidatabase environment. The model is based on coloured Petri nets formalism. A hierarchical coloured Petri nets model describing the two key components of the protocol, namely message queuing facility and transaction queuing facility, is constructed and analyzed using the software tool Design/CPN. Simulation of message and transaction processing algorithms has been carried out to verify and refine the design of the proposed protocol. The tool has also enabled us to assess the practicality of the developed approach and study the impact of the protocol implementation. Finally, the results of simulation are analysed and discussed