Author : Amit Sahay and Ekta S Mehta

Six Sigma is a disciplined, data-driven approach and methodology for eliminating defects in any process – from manufacturing to transactional and from product to service. Six Sigma is a set of techniques and tools for process improvement. It was developed by Motorola in 1986, Six Sigma seeks to improve the quality of process outputs by identifying and removing the causes of defects (errors) and minimizing variability in manufacturing and business processes. It uses a set of quality management methods, including statistical methods. This paper deals with the procedure to achieve Six Sigma level by means of simple tools viz. Cause and effect diagram, DMAIC methodology. The method is explained with the help of suitable case studies. This paper is dedicated to the deceased of South Korean Ferry Disaster and Manali Dam Tragedy. Lest we improve.

Keywords: Statistical quality control; Critical to Quality (CTQ), Six Sigma; Defects per million opportunities (DPMO); Voice of Customer; Cause and effect diagram; DMAIC cycle; Key activity, Resource allocation

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.4 (Aug- 2014)