Cours - Gestion et économie

This document introduces essential production concepts, focusing on processes, operations, and production organization systems. It defines operations and processes in industrial contexts, explains process mapping and flow units, and highlights different production systems—including linear production, job shop, and batch production. Various case studies, such as medical facilities and manufacturing plants, illustrate practical applications and decision-making approaches for optimizing production methodologies.

This document provides a comprehensive analysis of production processes, focusing on key performance indicators like cycle time, flow rate, and processing time. It includes methodologies for analyzing systems with multiple stations, bottlenecks, and lot-based production activities, offering practical examples from various industries. The document also explores capacity evaluation, utilization rates, and the application of Little’s Law for inventory and flow rate relationships. Practical examples demonstrate calculations to optimize production and resource allocation.

This chapter provides a foundational understanding of inventory management in production processes, focusing on inventory classification, performance measurement indicators, and cost valuation methods. It introduces key concepts such as economic order quantity (EOQ) and manufacturing order quantity, and explains their role in minimizing total inventory management costs. Additionally, it explores the concept of reorder points (ROP) and safety stock calculations, highlighting adjustments required under demand and lead time uncertainties. Illustrative examples are given for better comprehensio...

This chapter explores demand forecasting in production systems. It outlines the importance of reliable forecasting for planning and decision-making, introduces types of demand profiles, and explains quantitative and qualitative forecasting methods. Core methodologies include decomposition of demand into trend, seasonality, and residual elements and exponential smoothing techniques. Evaluation metrics such as error mean and mean absolute deviation (MAD) are detailed to assess forecasting accuracy.

This document explores the methodologies for industrial and commercial planning (PIC) as well as production master planning (PDP). The PIC acts as a high-level agreement between production and commercial teams to predict and balance sales, production resources, and inventory strategies. It outlines strategies (level strategy and pursuit strategy) to efficiently forecast resource allocation such as labor, machine capacity, and inventory based on anticipated variations in demand and stock requirements. The document transitions to the PDP, a short-term plan focused on converting PIC forecasts...

This chapter introduces stock management fundamentals in production processes, addressing stock valuation methods based on demand and supply chain delays. Key metrics such as stock turnover and average storage duration are calculated and supported by examples. Optimization techniques like Economic Order Quantity (EOQ) and manufacturing constraints are presented to minimize annual inventory costs. Finally, strategies for stock replenishment under uncertain demand and lead times are detailed, with methods for calculating safety stock and reorder points.

This document systematically examines key concepts in inventory management, emphasizing stock definition, classification, and performance metrics. It introduces economic and manufacturing order quantities, illustrating how to calculate and optimize them to minimize annual costs. Additionally, various scenarios are addressed, such as uncertainties in demand and delivery delays, with methods for calculating reorder points and safety stocks. Practical examples provide clarity on cost calculations and optimizing stock levels under realistic constraints.

This document provides a detailed analysis of production processes by introducing key performance indicators like cycle time, flow rate, and processing time. It discusses scenarios involving multiple stations, entities processed in batches, and processes with bottleneck activities that constrain production capacity. It presents formulas for calculating cycle times, flow rates, and capacity utilization, supported by illustrative examples. Furthermore, the document highlights Little's Law to relate inventory levels, flow rate, and throughput time in stationary systems.

This document details the analysis methodologies for production processes, introducing key performance indicators such as cycle time, flow rate, and processing time. Specific scenarios and examples are provided, including multiple stations, bottleneck activities, and batch production, demonstrating their impact on production cycle and flow rates. The chapter also explores capacity evaluation, resource utilization calculation, and the relationship between performance indicators, such as Little’s Law. Practical case studies with detailed example calculations ground the theoretical framework i...

This document introduces key terminologies and concepts related to production systems, including operations, processes, and flow units. It presents different types of production systems, namely process-oriented, product family-oriented, linear flows, job-shop flows, and continuous flows, alongside their applications, strengths, and limitations. Examples illustrate the structuring, mapping, and analysis of production systems, considering unit flows and their specific dynamics. The text concludes with an evaluation of production pacing and decision-making based on process suitability for dive...

This document introduces key concepts in production processes, emphasizing how resources—human, material, and robotic—can be coordinated for effective operations. It explains the structure and types of production systems (e.g., job-shop, linear flow, continuous, and batch processing) and discusses approaches to organizing production, such as process-oriented, product-family-based, and project-specific arrangements. The document also details the importance of defining flow units, the rationale behind batch processing, and how these elements influence production rhythms. Lastly, it highlights...

This document thoroughly explains the strategic decisions businesses need to make to achieve sustainable growth. It categorizes strategies into economic, geographic, and legal aspects, covering options such as specialization, integration, diversification, and externalization for economic growth. Geographic growth strategies address exportation, commercial presence, and international alliances. Legal growth strategies encompass internal, external, and shared approaches, with an emphasis on the implications of mergers, acquisitions, and collaborations. The document highlights the methodologie...

The document focuses on the different dimensions of logistics costs, covering their definition, classification (fixed and variable costs), internal vs. external costs, and the calculation methodologies, including complete, partial, and ABC methods. It explores the roles of logistics functions, infrastructure, and transport modes, as well as the significance of Incoterms in risk and cost allocation within supply chain operations. Detailed examples are provided for cost structures such as production costs, sales calculations, and specific cases like FNAC. Finally, the methodologies use real-w...

This document provides an in-depth exploration of logistical traceability as defined by ISO 9000 (2015), focusing on its various types, such as upstream, internal, downstream, ascending, and descending traceability. It emphasizes the significance of tools, including software like ERP, WMS, and TMS, in connecting information and physical flows for efficient tracking and tracing. The chapter also explains practical methodologies for implementing traceability systems tailored to organizational needs, while illustrating real-case applications in industries such as automotive manufacturing. It h...

This document explores the concepts and methodologies of risk management, outlining its historical roots and frameworks. It describes assets as business-critical resources and introduces the risk equation composed of threat, vulnerability, and impact. Security requirements are established through strategies and implemented controls addressing threats, vulnerabilities, or impacts. Popular risk management methods such as EBIOS, MARION, and MEHARI are discussed, emphasizing their unique processes for identifying and mitigating risks, tailored to organizational needs.