This study aims to determine the value of sigma before improvement is carried out and find causes defects in production process, as well produce proposals for quality control products. The population this was Arsel furniture table products during April 2015 March 2016 which amounted 420 Sampling using purposive sampling techniques with considerations used, number samples used 306 samples. resul...

This research addresses and analyzes the results of a six-sigma approach used to optimize logistics costs pipe manufacturing company. Two mathematical models are developed for containers control company’s logistics. The Mathematical Programming Language (MPL) software is generate solve these models. verify that proposed result in improvement, especially DMAIC (define, measure, analyze, improve,...