Application of 7 quality control (7 QC) tools for quality management: A case study of a liquid chemical warehousing

The purpose of the study was to apply some of the seven quality control tools (7 QC tools) for reducing delay the delivery problem. The Cause and Effect Diagram was found out the root causes of this problem and the Pareto Chart was used to help ordering the important of delay the delivery problem, it was found that coordination problem was the major cause. Finally, the Matrix Diagram was used to solve the problem for assigning responsibilities by improving the cause of three reasons: 1. work system 2.work equipment and 3.employees. The results showed that the percentage of operations with reduced error from between 5-10% to 2-3%. The paper is dedicated to present concepts to show how the quality tools can be used to solve problems and improve quality.