This study examines the optimal run time for the economic manufacturing quantity (EMQ) model with failure-in-work, backlogging, and random breakdown happening in stock-piling time. A recent article by Chiu and Chiu [Mathematical modeling for production system with backlogging and failure in repair, Journal of Scientific & Industrial Research, 65 (2006) 499-506] investigated optimal lot-size for...

It is usual for work completed at one point in a software development process to be revisited, or reworked, at a later point. Such rework is informally understood, but if we hope to support reasoning about, and partial automation of, software development processes, rework be more formally understood. In our experience in designing formalized processes in software development and other domains, ...

This paper investigates the optimal inventory replenishment policy for an economic production quantity (EPQ) model with backordering, rework and machine breakdown taking place in stock piling time. A prior paper by Chiu has examined the lot-sizing problem on an imperfect quality EPQ model. Due to another reliability factor random machine breakdown seems to be inevitable in most real world manuf...

This paper considers a single-stage make-to-stock production–inventory system under random demand and yield, where defective units are reworked. We examine how to set cost-minimizing production/order quantities in such imperfect systems, which is challenging because yield implies an uncertain arrival time of outstanding the possibility them crossing each other pipeline. To determine order/produ...

This paper extends an integrated model of economic production quantity (EPQ) and preventive maintenance (PM) to incorporate possibilities of minimal repair and rework. Our model determines simultaneously the optimal number of inspections, the inspection interval, the EPQ, and the PM level. Numerical examples of Weibull shock models are given to show that allowing minimal repair and rework will ...

Successfully implementing concurrent development has proven difficult for many organizations. However, many theories addressing concurrent development treat either technical aspects of the development process (e.g., precedence relationships) or behavioral issues (e.g., creating effective cross-functional teams), but not their linkages. We argue that much of the complexity of concurrent developm...

Knowledge enablers exist at the organizational and project levels. There is however, no meaningful means to measure organizational or project knowledge sharing. The need to understand the elements that enable this flow of knowledge is dramatically evidenced in information technology organizations in which insufficient knowledge sharing leads to intellectual capital loss, rework, skills deterior...

Rework Management in software development is a challenging and complex issue. Defined as the effort spent to re-do some work, rework implies big costs given the fact that the time spent on rework does not count to the improvement of the project. Predicting and controlling rework causes is a valuable asset for companies, which maintain closed policies on choosing team members and assigning activ...

Rework is a repeat job that caused by an error from construction project. In activity almost always happens rework only the quantity different. The purpose of this study identify factors cause rework, conditions intensity on road work item in city Padang. This uses qualitative methods with descriptive approach. result are main led to Padang were design and documentation, managerial factor resou...