Patent ID: 8190417

Claim:
Method for alternately simulating sub-systems of a tested real system, comprising the steps of: a. producing a sequence diagram defining the intercommunication of messages between the various sub-systems of the real system in terms of at least time, message name, issuing sub-system, and destination sub-system; b. upon testing one or more real sub-systems of the system, activating said sequence diagram, while eliminating those messages relating to existing sub-systems, and maintaining all those messages relating to missing sub-systems, said maintained messages being simulated messages for said missing sub-systems; c. introducing in real time said simulated messages on a bus leading to said real sub-systems, while further timely introducing real messages of existing real sub-systems over same bus; d. receiving by said sequence diagram those real messages of existing sub-systems, in order to synchronize the progression of the sequence diagram, and to satisfy conditions for issuing messages by the sequence diagram, when applicable; and wherein said sequence diagram is divided into a plurality of sequences, each defining the intercommunication of messages between a specific sub-system and other sub-systems of a real system in terms of time, message name, issuing sub-system and destination sub-system.