Documents are used extensively by professionals in their execution of their own work and to share information with others. Professionals use and manage their documents in ways that are woven into their work activities and leave most of the context unsaid because the documents are understood as belonging to a certain ongoing activity. Contrary to this, organisations have a strong interest in sto...

This paper addresses the problem of reworking of defective items and develops an integrated cost model so as to minimize the extra costs of reworking/scraping of work pieces. Items to be reworked are the results of quality problem. To improve a product’s quality, the selection of process target is extremely important since it directly affects the process defective rate, material cost, rework or...

This paper extends an imperfect production inventory model to machine breakdown at a random time and rework of defective items. Any manufacturing system wants to produce perfect quality items. But in long run production process, there may arise different types of difficulties like labor problem, rawmaterial problems, operator problems, etc., due to that the machinery systems shift from in-contr...

Aiming at the problems of high equipment composition complexity, long idle time machines, and difficulty in online optimization energy consumption production system that adopts “immediate rework” mechanism, an method for rework systems is proposed. A digital model mechanism established, real-time data integrated to realize based on optimal buffer threshold. Taking module line a battery workshop...

In traditional inventory models such as the economic order quantity (EOQ) and the economic production quantity (EPQ) the sole objective is to minimize the total inventory-related costs, typically holding cost and ordering cost. These models do not consider the presence of defective products in the lot or rework of them. Recently, Jamal, Sarker, and Mondal (Jamal, A. A. M., Sarker, B. R., & Mond...

A common requirement on future safety-critical systems is to support hardware interchangeability. In this paper, work sponsored by British Aerospace Military Aircraft and Aerostructures is reported which addresses this issue. Interchangeability is motivated by the need to perform technology upgrades within a system when components become obsolete – hardware computer components are often superse...

This paper aims to review the current practice in cost engineering, identify the scientific research challengesand suggest future direction of this area research. It has been developed based on both the outputs from the academic forum of cost engineering at Cranfield University in the UK and the state of art on cost engineering research. The promising future research subjects in Cost Engineerin...