Description: Maintainability of an object, determined by engineering design under expected maintenance conditions and logistical support; Name: Inherent maintainability
Description: maintainability of an item determined by the design under expected conditions of maintenance and logistic support; Name: intrinsic maintainability
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