Detailed Explanation:

The correct answer is B. Enrichment.

Job enrichment occurs when employees are given additional responsibilities that increase the depth, challenge, and significance of their work. In this case, test technicians are no longer limited to simply identifying failures. They are being trained to:

troubleshoot with production,

participate in failure analysis,

communicate across departments,

and coordinate corrective action.

These added responsibilities increase their involvement in problem-solving, coordination, and improvement. That is a classic example of job enrichment, because the role becomes more meaningful and broader in responsibility.

Why the other options are incorrect:

A. Stratification

Stratification is not a job-design concept that fits this scenario. It usually refers to categorizing or separating data or groups.

C. Rotation

Job rotation means moving employees between different jobs or assignments. That is not what is happening here.

D. Description

Job description refers to documenting job duties, not expanding them in practice.

Quality Management Excellence reference basis:

This answer reflects Quality Management Excellence principles of:

employee development,

broader involvement in improvement,

cross-functional problem-solving,

and building capability beyond narrow task execution.

Job enrichment supports organizational excellence because it increases ownership, engagement, and contribution to quality improvement.