Material requirements planning (MRP) has been a very popular and widely used multi-level inventory control method since 1970s. Recent developments in computer and information technology accelerate and facilitate the calculations necessary for MRP, but MRP is simply a system to open and trace the production/purchasing orders under pre-determined lead-time and lot size constraints. It does not di...

This article examines the optimal stock-out risk for a component used by alternative modules mounted on several assembly lines. The studied context is a supply chain dedicated to the mass production of highly diversified products, which is common in the automotive industry. The material requirement planning (MRP) approach is adapted to monitor this chain; however, the distance between the produ...

This article examines the optimal stock-out risk for a component used by alternative modules mounted on several assembly lines. The studied context is a supply chain dedicated to the mass production of highly diversified products, which is common in the automotive industry. The material requirement planning (MRP) approach is adapted to monitor this chain; however, the distance between the produ...

The aim of this paper is to propose tools to adapt and parameterize the Material Requirement Planning (MRP) method under lead time uncertainty. We study multi-level assembly systems with one type of finished products and several types of components. We consider that each component has a fixed unit inventory cost and the finished product has a backlogging cost per unit of time. The lead times of...

Industry 4.0 is a basic step in the upgrade of manufacturing companies into digital enterprises. It allows more flexibility manufacturing, as well mass customization, provides better quality, and enhances productivity. As result, it empowers to meet challenges smart which increasingly individualizing products with shorter time-to-market span improving quality. Smart has an important part 4.0. T...

The multi-directionality of polished surface topography (PST) is a key index to characterize the quality and integrity, its prediction before actual machining great significance toolpath planning, verification, optimization. However, most related works reported thus far focus mainly on material removal modeling but few multi-directionality. Hence, this paper proposes rapid method precisely pred...