[1][2] The terms operation analysis, work design and simplification, and methods engineering and corporate re-engineering are frequently used interchangeably.
[3] Lowering costs and increasing reliability and productivity are the objectives of methods engineering.
Methods efficiency engineering focuses on lowering costs through productivity improvement.
Process charts are used to describe proposed or existing way of doing work utilizing machines and men.
Equations of synchronous and random servicing as well as line balancing are used to determine the ideal worker to machine ratio for the process or product chosen.