The MEL is intended to permit operation with inoperative equipment for a period of time while deferring a repair. Since the maintenance manual primarily covers removal/replacement and repair of certain items, the requirements in the MEL don’t necessarily reflect a specific procedure in the manual. For example, you will not find a procedure in the manual for “…seat must be blocked and placarded,” just like you won't find a procedure on how to use a wrench to remove a bolt. It is left to the discretion of the person performing the procedure. Furthermore, MEL conditions and limitations do not relieve the operator from determining that the aircraft is in condition for safe operation with these items inoperative.