The manual for maintenance and operation provides us with the necessary instructions about how to maintain and operate the object so that one can achieve optimum satisfaction. In the case of the manual for assembling, one is provided with meticulous and sequential step by step instructions in order to make the object operable or functional. Some of us may discover from bitter experience that if we fail to follow the precise instruction that at best it could be a frustrating experience or at worst it could damage the object thus making it inoperable.