This research addresses two common tools for reducing product development lead times: overlapping of development stages and crashing of development times. For the first time in the product development literature, a formal model addresses both tools concurrently, thus facilitating analysis of the interdependencies between overlapping and crashing. The results exhibit the necessity of addressing ...

This article proposes a two-level fuzzy supply chain inventory model, in which single consignor delivers multiple items to the consignees with consignment stock agreement. The lead time is incorporated into model and considered variable for obtaining optimal replenishment decisions. In addition, crashing cost employed reduce duration. investigates four different cases under controllable analyze...

Managers often face difficulties when making project decisions that involve large number of interrelated activities – the planning and scheduling of which is project management. Most problems often arise in areas such as product development, production planning and control and setting up the production facilities. One important aspect of project management is activity crashing, i.e. reducing th...

Due to today’s highly competitive environment, both reducing lead time and the associated inventory cost are critically important issues in supply chain. And, the consideration of time value effect is lacked in most previous researches. However, the effect of inflation is too critical to ignore. Therefore, we develop an integrated inventory model with crashing cost which was determined by the l...

Smooth implementation and controlling conflicting goals of a project with the usage of all related resources through organization is inherently a complex task to management. At the same time deterministic models are never efficient in practical project management (PM) decision problems because the related parameters are frequently fuzzy in nature. The project execution time is a major concern o...

The main purpose of this study is to investigate the periodic inventory model with backorder price discounts, where shortages are partially backlogged. The application of just-in-time (JIT) philosophy i.e., crashing of the lead-time and setup cost has been carried component wise. Two cases have been discussed viz 1 protection interval demand distribution is known (normal distribution approach) ...

Cobb-Douglas Production Function was widely used in economics and productivity studies across many sectors. The function's quantitative modeling of resource inputs and production outputs is appealing to the research domain of construction management. In this thesis we explored this function's application in construction schedule crashing and project risk analysis related to duration of construc...

A common method of recovering a delayed construction programme is by schedule compression through activity crashing. To be of practical benefit, however, the cost-effectiveness of crashing any of the remaining construction activities needs be examined before a decision is reached. Although the likely cost and productivity effects of crashing can be calculated using standard estimating technique...