Service level

About: Service level is a research topic. Over the lifetime, 7647 publications have been published within this topic receiving 126093 citations. The topic is also known as: service level.

Multi-echelon multi-company inventory planning with limited information exchange

Abstract: Supply chain planning concepts from multi-echelon inventory theory are generally based on some form of centralised planning of supply chains Those multi-echelon models that do consider decentralised planning, assume complete information and/or a specific single objective function This paper investigates how multi-echelon inventory theory can accommodate a setting with decentralised decision makers (a supplier and a number of retail groups) without complete information We present a coordination procedure that does not require the retail groups to exchange demand information, but does allow using opportunities for demand pooling between them We illustrate our ideas by way of a quantitative analysis of a two-echelon divergent supply chain, with both cooperative and non cooperative retail groups We conclude that coordination across a supply chain with decentralised control and limited centralised information is feasible by using available algorithms with satisfactory service level and cost performance

Service level, cost and environmental optimization of collaborative transportation

Abstract: Less than truckload is an important type of road-based transportation. Based on real data and on a collaboration with industry, we show that a collaborative approach between companies offers important benefits. We propose to develop partnerships between shipping companies and to synchronize their shipments. Four operational collaborative schemes with different objectives are developed. The first one focuses on minimizing shipping costs for shippers. The second and third ones minimize the carrier’s costs and the environmental cost, respectively. The fourth one is a combination of all three. The results of our computational experiments demonstrate that collaboration lead to significant cost reductions.

Scheduling Restaurant Workers to Minimize Labor Cost and Meet Service Standards

Abstract: In labor scheduling, restaurant managers face dual challenges: overstaffing that means excessive labor costs and understaffing that invites the opportunity cost of service errors and lost business. Most operators seek to rely on their personal experience and judgment to determine schedules that are meant to maintain service quality and limit labor costs, but an analysis of one Korean restaurant finds that this goal is elusive. The labor scheduling model based on integer programming (IP) is presented to address the staffing and scheduling issues and service standards by maintaining an appropriate ratio of part-time to full-time employees. Using appropriate constraints, the model was used to generate a schedule for a table service restaurant in Seoul, South Korea, that is affiliated with a global chain. When compared to the existing schedule, the IP-generated schedule helped the restaurant reduce overall labor costs while ensuring appropriate service levels.