MIL STD-Work Measurement

5.1.1 Predetermined Time Systems.
It is not the intent of this Military Standard to challenge the accuracy of those predetermined time systems whose inherent accuracy meets the requirements of paragraph 5.1. However, when a predetermined time system is used, It shall be incumbent on the contractor to demonstrate to the Government that the accuracy of the original data base has not been compromised in ‘application or standards development.

5.2 Operations Analysis.
Operations analysis is considered an integral part of the development of a Type 1 Engineered Labor Standard. An operations analysis shall be accomplished and recorded prior to the determination of a Type I standard; and in the improvement of established labor standards.