MISSION RELIABILITY MISSION RELIABILITY The probability that, under stated con- ditions, a system or equipment will operate in the mode for which it was designed, i.e., with no malfunctions, for the duration of a mission, given that it was operating in this mode at the beginning of the mission. MISSION STORES All stores excluding suspension and release equipment (carriage stores) are classified as mission stores. In gen- eral, these stores directly support a specific mission of an aircraft. MISSION STORE INTERFACE The electrical interface on the mission store external structure where the aircraft or carriage store is electrically connected. This connection is usually on the mission store side of an umbilical cable. MISSION TIME The period of time in which an item must per- form a specified mission. MIXED LOGIC When the 1-state of the variables is defined as the more positive or less positive of the two possible levels, depending upon the absence or presence of the polarity indicator symbol, mixed logic is used in the diagram.