Answer: 1-TOC is intended to address problems linked to a system's Flow of Materials, Information, and resources while Lean and Six Sigma focus on eliminating waste and reducing process variation and defects.
2-Yes, TOC may be a compliment in certain situations.
Step-by-step explanation:
TOC(Theory of Constraints) focuses on verifying and managing the available constraints that may limit the throughput of a system.
While if we look at the other end Lean and Six Sigma focus on other problems such as reducing non-value-added activities, creating a culture of continuous improvement, and utilizing statistical tools and methodologies to verify and remove the main causes of defects.
TOC is definitely a complement to Lean and Six Sigma in certain situations. TOC addresses and manages the constraints that may be a cause for limiting the overall system performance. By combining the above two methodologies it is guaranteed that the system will get a boost in its performance.