Design Optimization of process Using Integrated Approach of Six Sigma and Theory of Constraints in Spinning Mill to Improve Quality and Productivity of Yarn

Abstract

Various continuous improvement (CI) strategies have been developed and applied to newlineimprove manufacturing system performance over the years. To help work through the apparent newlineconflicts of different improvement programs, we can use a model that identifies a hierarchy of newlinecause and effect relationships. First, identify the primary theory. What is the core emphasis of newlinethe program or methodology? This core emphasis is usually a few words or a short phrase: Six newlineSigma s is variation reduction, TOC s is constraint reduction. Each improvement methodology newlineappears to be driving toward common tools and concepts. However, different methodologies newlinebegin the journey from different perspectives. At the secondary effects level of the model, the newlineresults from each methodology start to look similar. Many of the secondary effects of one newlinemethodology look similar to the primary effect or focus of another methodology. Extending newlinethe fundamental philosophy through each methodology s primary, secondary and tertiary newlineeffects, you might conclude each method strives to achieve similar results. Even along the newlinejourney, each methodology incorporates the primary effects of other improvement programs. newlineCan we infer that after extensive time and effort implementing a single methodology, the end newlineresult will be similar no matter which path we take? Where does that leave us? As a manager, newlinehow do you select an improvement methodology or program to overcome your obstacles? newlineSelection of a process improvement methodology is dependent on the culture of your newlineorganization. If many popular programs appear to end up in the same place addressing the same newlineissues after a number of years of use, the main issue left to explore is the speed at which a newlinemethod will be accepted into an organization newlineMore and more organizations are trying to determine what improvement method will newlinework best and fit best with their culture. When you are working through the apparent conflicting newlineclaims of performance improvement programs, my advice is to concentrate on the pr