Six Sigma is at the top of the agenda for many companies that try to reduce cost and improve
productivity. Many of the top manufacturing companies implement thousands of Six Sigma …

The notion of quality control is introduced into the classic economic production quantity
(EPQ) model. Based on previous research, this paper contributes to an integrated EPQ …

Whether an industrial organisation is involved with production of new goods or engaged in
reverse logistics to recycle used products, the items produced that do not meet specifications …

The purpose of this study is to combine production-inventory management with process-
quality design for determining production lot size and process parameters under the …

This paper proposes a dynamic model for a defective production system with Poka-Yoke.
Poka-Yoke is a Japanese phrase which means mistake-proofing. The technique of Poka …

The aim of this paper is to develop an optimization model for quality improvement by
considering quality investment in rework policies and supply chain profit sharing. To improve …

Most of the studies of quality systems or product assessment deal with a single quality
characteristic to determine the quality loss. From the customer's point of view, however …

Existing research works on process quality improvement focus largely on the linkages
between quality improvement cost and production economics such as set-up cost and defect …

Several studies have been performed to review the state the art in the cost of quality (COQ)
literature. These studies have focused on different aspects such as models, adoption …

The two-part trade credit policy is developed to accelerate cash inflow that can avoid bad
debt risk in the earlier economic order quantity (EOQ) models allowing only one period of …