Operational Effectiveness is a complex topic it requires significant discussion to fully understand.

Operational effectiveness requires balance between Mission Effectiveness (i.e., can the system do it) and Life Cycle Cost (i.e., can the program afford it) and Process Efficiency (i.e., are the processes responsive to the equipment and user needs).  So in summary, it is a combination of factors, not just one. Many of the Measures of Effectiveness are identified by the original Ao, Am, Reliability, Maintainability, Supportability requirements established in document such as the ICD, and CCD. Often, trade-offs must occur to achieve an Operational Effectiveness balance. When we determine these factors, they combine to give us a larger picture of an Affordable Operational Effectivness.  We cover these topics as well as Suitability (System is: Supportable + Mission Effective + in Intended Environment) in our LOG 211V Supportability Analysis Virtual Instructor Led course being offered in Jan and Feb 2023. Details at https://icatalog.dau.edu/onlinecatalog/courses.aspx?crs_id=12445