Patent ID: 7516036

Claim:
A computer-implemented method of testing a target system using a stimulus-response test, comprising: obtaining at a first preset monitoring time a first response from said target system, said first response representing a response by said target system at said first preset monitoring time to a set of stimuli of said stimulus-response test; measuring an elapsed duration from a second preset monitoring time to said first preset monitoring time, said second preset monitoring time being associated with the latest response state change prior to said first preset monitoring time by said target system, said latest response state change representing a transition, between said second preset monitoring time and a preset monitoring time immediately preceding said second preset monitoring time, from a first predefined response level state to a second predefined response level state; if said elapsed duration exceeds an expected duration, generating a first signal indicative of said elapsed duration exceeding said expected duration; and logging parameters pertaining to said target system responsive to said first signal.