optimum utilisation of men, machines and materials

lowest possible cost and shortest possible time for project

timely execution of project

to produce best results under given constraints

break-even analysis

value analysis

linear programming

queing theory

both direct and indirect costs, increase

indirect costs increase and direct costs decrease

direct costs increase and indirect costs decrease

cost is no criterion

Scanlon Plan

Rowan Plan

Bedaux Plan

Taylor Differential Piece Rate System

past good workers

past poor workers

past average workers

all of the above