E.R. Abdulin

There are some considerations of application software development for integrated control systems (ICS) in the paper. This kind of systems is more and more applied for business-processes optimization. The application software for these systems is intended for performing in real-time operational system (RTOS) environment. This paper investigates the application of basic software development methods in this very case. The problem of deadlocks was discovered on the application software hierarchical level. The decision search was performed by application software-s structure analyzing and interaction among software parts. The routine deadlock problem was analyzed for ICS application software. This problem was modeled by Petri-s network and its mathematical tools. The analysis of internal machine language nomenclature gives two potential decision variants. These variants - efficiency was also analyzed by Petri-s network. The result showed clearly the validity of the both decisions. The most suitable decision was chosen by the established criteria. The usage off the suggested decision was also analyzed for other tasks. The immunity from modification of application software-s dedicated memory was also shown. The application of these results extends the ICS-s possibilities and increases the ICS-s reliability. The suggested method was successfully implemented in ICSes for several organizations. This implementation allows to realize the automated high definition TV cameras system with third-party vendors - environment and the interaction with central units of third-party systems with cyclic pickup of actual parameter-s values as a real-time system. In addition to the results, the necessity of including into the application software the safety tools from setting the equipment to undocumented modes and from wrong operator-s actions. This necessity was shown in the example of the routine problem.