Purpose of Work Study: what is it mainly aimed at achieving? Select the option that best captures the principal aim of Work Study (method study + time study) in industrial engineering.

Introduction / Context:
Work Study integrates Method Study (how work should be done) and Time Study/PMTS (how long it should take). The combined objective is to improve productivity while safeguarding quality and human factors.

Given Data / Assumptions:

• We seek both an improved method and a fair, repeatable time standard.
• Standards must reflect normal performance and allowances.

Concept / Approach:
Method Study eliminates unnecessary motions and rationalizes workflow, layout, tools, and handling. Time Study (or PMTS) then sets a standard time for the improved method by applying rating and allowances. The outcome is a standard method with a standard time for planning, scheduling, costing, and incentive schemes.

Step-by-Step Solution:
Apply Method Study to define the best way to do the task.Use Time Study/PMTS to compute normal time and standard time.Combine both to formalize standard method and standard time → Option (C).

Verification / Alternative check:
Work Study handbooks consistently define its deliverables as a documented method and a standard time, not just raw speed targets.

Why Other Options Are Wrong:
(A) is half the goal (method only); (B) ignores allowances and humane pacing; (D) narrows focus to motions and neglects systems; (E) conflicts with quality and ergonomics.

Common Pitfalls:
Conducting time study on a poor method; setting standards without allowances; failing to engage operators in method improvement.

Final Answer:
developing the standard method and standard time of a job