1. Theory of Constraints

The theory of constraints is a management paradigm that views any manageable system as being limited in achieving more of its goals by a very small number of constraints.

2. 5S Methodology

5S was developed in Japan and was identified as one of the techniques that enabled just-in-time production

3. Six Sigma

Six Sigma is a set of methodologies and tools used to improve business processes by reducing defects and errors, minimizing variation, and increasing quality and efficiency. The goal of Six Sigma is to achieve a level of quality that is nearly perfect, with only 3.4 defects per million opportunities.