“Programming Technologies” Department

Push-button telephone modeling using SWITCH-technology. Variant 2

© S.Y. Kanzhelev, A.A. Shalyto

Saint-Petersburg State University of Information Technologies, Mechanics and Optics

Current work, as work [1], using SWITCH-technolody, implements the model of push-button telephone and the automatic telephone station (ATS)

Differences with the program [1] are:

implemented new telephone's functions - the posibility to accept calls and to enter the telephone number after the receiver was lifted out;
new method of cooperation of automatas, which implements telephone and ATS.

This method was called "postponed automata call". In differences with method, described in [2], it allows:

to move out the reenterability of automata's functions;
to realize the parallel work of automatas in the different threads;
to process external events, arriving from parallel threads, after their preliminarily saving in the queue

Method keep graph notation, proposed in [3] and using in the work [1].

Postponed automata call have following features:

Project implemented on Java language.

Project was tested using automatically generated log-files and automatas graph's analyzing.

References