Description: Probability of an object's suitability when required to be in a working condition under given conditions at a given time and assuming the necessary external resources are provided; Name: immediate availability
Description: Probability that an item is in a state to perform as required at a given instant, under given conditions, assuming that the necessary external resources are provided ; Name: Instantaneous availability
Description: electronic reference to the PAM specification sheet of the sub system; Name: reference to the PAM specification sheet