Maintainability analysis versus maintenance analysis - Interfaces and discrimination

To clarify the present confusion regarding maintainability engineering and maintenance engineering analyses, the difference between the two is delineated as follows: maintainability engineering is directed at assuring a design performance capability that will permit attaining a required operational capability, while maintenance engineering is directed at assuring a proper integration of the system into the use environment in a manner which assures achieving the predicted system utilization. Both are concerned with minimizing required resources/costs. The differences are identified which must be recognized in order to achieve the objectives of the maintainability engineering program and the interchange of data between the two analyses, which is conducive to reduce program costs.