Dynamic protocol exchange system and method

摘要

A protocol definition 40 is prepared that includes a transition rule list 20 that lists transition rules each of which specifies correspondence among an input pattern to be received, a processing to be executed, and an output pattern as a result of the processing and a state table 30 specifying correspondences between system states and the one or plural transition rules used in the system states. A state detection section 50 detects a current system state, and transition rules corresponding to the current system state are checked and taken out from the transition rule list 20 and are read into the execution section 10, so that a protocol is composed of these transition rules. In response to supply of input data, transition rules having patterns matching input patterns of the inputted data are executed. Then, in response to transition of the system state resulting from the foregoing processing, transition rules are read that corresponds to a system state after the transition so that a new protocol is installed. Thus, by dynamically exchanging a protocol according to variation of a dynamic system state, an optimal protocol for a current system state can be installed.