Sales and Operations Planning (S&OP) Concepts and Models under Constraints: Literature Review
Globalization has had a significant impact on company's management, particularly in the supply chain (lead time, investment in production capacity and technology, organization management The sales and operations planning (S&OP) include all the processes that link the strategic objectives of the enterprise with the production plan. The impact of the S&OP on operational performance was consistently and significantly demonstrated in the operational aspects of production quality (conformity of production, product quality and reliability) delivery (the delivery agility, reliability of supply, manufacturing deadlines, lead times) stocks (reduction of inventory levels, inventory optimization) and flexibility (flexible volume and mix) Our objective in this paper is to present, in the first part, a literature overview of the sales and operations planning, and various research and models developed. In the second part, we will emphasize the transversal aspect of our research that involves both operational issues, tactical and strategic in a context subject to different constraints.