Final answer:
In the context of addressing process defects, Heijunka is the technique that would not be used. Unlike the others, which directly relate to defect reduction, Heijunka focuses on leveling production workload and managing variations over time.
Step-by-step explanation:
To address the question regarding which technique among the options given would not be used to address process defects, it's important to understand what each technique encompasses:
- One-piece flow is a principal part of lean manufacturing that refers to the concept of moving one product at a time between operations within a manufacturing process.
- Six Sigma is a set of techniques and tools for process improvement aimed at reducing defects and variability in manufacturing and business processes.
- Poka-yoke is a Japanese term for error-proofing or mistake-proofing a process to prevent or detect errors as they occur.
- Heijunka is a lean production method aimed at leveling the volume and variety of production over time. This method helps to manage variations and create a more smooth workflow.
While all the given options are process improvement techniques, Heijunka specifically deals with production leveling and does not directly address individual process defects. Instead, it is a technique used for balancing the workload across different processes and time periods.