Travaux dirigés (TD) - Gestion et économie

This document is a detailed exercise correction for managing inventory within production processes. It tackles multiple computations, including annual demand, optimal order quantity using Wilson's formula, and economic production quantities for various scenarios such as cost minimization. Comparative decisions are analyzed for production in-house versus outsourcing, supported by cost formulas and numerical examples. The document also provides advanced safety stock calculations to meet service level goals in specific case studies.

The document presents exercises and detailed solutions focusing on inventory management in production processes. Using given parameters like demand, storage costs, and delivery times, calculations include optimal order quantity using Wilson's formula, safety stock, and economic production quantities. The analysis identifies inefficiencies in current processes and provides recommendations such as determining the advantages of outsourcing production. Additionally, statistical models are applied to calculate safety stock to ensure a defined service level.

The document focuses on forecasting future demand for a business using historical data from 2019. Key methodologies include graphical trend analysis, decomposition method to estimate trend and seasonality, seasonal coefficient calculation, and error metrics like absolute mean error (EAM) and exponential smoothing models with alpha values of 0.1 and 0.2. Results indicate a seasonal upward trend in demand, with the corrected forecasts matching demand more accurately, and the recommended model for accuracy is exponential smoothing with alpha = 0.1.

This document provides a comparative framework for studying two production planning strategies: the pursuit strategy and the level strategy, as applied in an industrial and commercial plan (PIC). Methodologically, it outlines key concepts such as forecasting, stock management, and production scheduling, culminating in cost analyses for both strategies. The findings address workforce and storage constraints, enabling stakeholders to determine optimal planning strategies under real-world limitations. The document highlights the need for strategic flexibility and effective planning tools for m...

This document provides a detailed correction for the TD2 exercise focusing on the design and implementation of a systematic billing system. It elaborates on error rectifications, logical frameworks, and methodologies applied in the financial transaction processes. The document emphasizes structured approaches to invoice generation and data evaluation. Recommendations for optimization in system architecture and reliability testing are also outlined.

This document provides solutions to exercises in inventory management for production processes. It addresses calculations for annual demand, total cost of inventory management, and optimal lot sizing using the Wilson formula. Case studies include determining economic order quantities, assessing supplier offers, and conducting safety stock calculations to maintain service levels. Recommendations are made to optimize inventory costs and decide between in-house production and subcontracting based on cost-benefit analysis.

The document focuses on inventory management practices for optimizing production and stock levels in two companies: AERO and DELTA. It explores demand calculation, the application of the Economic Order Quantity (EOQ) or Wilson formula, safety stock levels, and the trade-offs between in-house production and outsourcing. Additionally, it examines cost structures, including procurement, storage, and capital costs, to guide efficient decision-making in stock replenishment and supply chain operations.

The document provides exercises aimed at understanding and applying project management techniques. It introduces calculations using the COCOMO model to estimate effort, development time, and team size for a software project. Scheduling methods including GANTT charts and PERT diagrams are employed to sequence tasks, identify dependencies, and determine the critical path. The exercises also include task breakdowns, durations, and dependency analysis for construction and software development projects.

This document introduces project planning techniques using PERT and Gantt charts, focusing on task dependencies and schedules. It outlines 14 tasks with durations and links that define their sequential execution. Analytical steps include calculating core parameters for the PERT network and determining early and late start and finish dates, as well as float margins for each task. Emphasis lies on accurate scheduling to optimize project completion while identifying critical paths.

The document provides a step-by-step guide to industrializing a product, focusing on tasks such as fabrication planning and assembly design. It introduces key actors and their responsibilities across stages like method analysis, purchase ordering, and tool assembly. Detailed instructions on building PERT diagrams, Gantt charts, and margin tables for scheduling optimization are included. Additionally, resource management and critical path identification are emphasized for efficient execution.

This document outlines methodologies for project planning using Pert and Gantt techniques. It provides a sample project with tasks and their dependencies, emphasizing calculations of key parameters such as earliest and latest start and end dates and task margins. The exercise involves constructing a network and analyzing task schedules to optimize project workflows. The correction section validates computations and ensures adherence to project management principles.

This document outlines a sequence of inventory management tasks involving the creation and modification of client orders, product articles, and stock levels. It includes instructions to generate a quotation, adjust orders, process invoices, and update inventory systems step-by-step. Each operation necessitates tracking through screenshots, ensuring practical application and verification. The focus is on understanding the workflow of client requests and stock management transformations.

This document serves as a guide for first-year License students in Applied Computer Science at the Faculty of Legal, Economic, and Management Sciences in Jendouba. It covers classical and commonly used topics in computer science such as data structures (records, files, recursion, linked lists, stacks, queues, and binary search trees). The fascicule is organized into five TDs, each addressing a specific set of concepts with exercises and their corrections, to help students understand theoretical concepts and their practical applications. It emphasizes both static and dynamic memory allocatio...