This study uses mathematical modeling to examine a multi-product economic manufacturing quantity (EMQ) model with an enhanced end items issuing policy and rework failures. We assume that a multi-product EMQ model randomly generates nonconforming items. All of the defective are reworked, but a certain portion fails and becomes scraps. When rework process ends and the entire lot of each product i...

In this paper, we investigate the usage of BehaviourInteraction-Priority version 2 (BIP2), a component-based modelling framework, for specifying feature-oriented systems. We evaluate BIP2 in the context of the Feature Interaction Problem and quantify the amount of work needed to add features to an existing system (i.e., in terms of rework to existing features, and work to identify and specify i...

In the manufacturing of TFT-LCD, the array process is for producing TFT-plates, the CF (color filter) process is for making CF-plates, and the cell process is for assembling a TFT plate with a CF one to form an integrated plate—called TFT-LCD plate. A TFT/CF plate comprises tens of panels and so is an assembled TFT-LCD plate. A TFT-LCD panel is good only when its two component panels are good. ...

A real economic growth only comes from increasing quality and quantity of the factors of production. Most production systems produce items which are of imperfect quality. In a production/inventory situation items which are received or produced are not of perfect quality. Thus the presence of defects which is inevitable in a produced/ordered lot is sorted out by the process of screening. Handlin...

This experience report illustrates the implementation of metrics about rework in Systems Engineering at Thales Airborne Systems. It explains how models and quantification of rework contribute to reduce waste in development processes. This paper is based upon our real experiences. Therefore, it could be considered as an industrial contribution to share this concept in Systems / Products Developm...