The master's thesis investigates material requirements planning based on demand, aiming to optimize resource management in procurement and production processes. The subject of the research is the analysis of methods that enable effective material management and reduce costs and inventory due to variations in demand. The thesis focuses on three approaches to material planning: Material Requirements Planning (MRP)–provides a foundational structure for material requirements planning, Demand Driven Material Requirements Planning (DDMRP)–offers better flexibility and responsiveness to changes in demand, and Demand Driven Adaptive Enterprise (DDAE)–integrates these methods at the enterprise level, allowing for strategic planning and improvements in efficiency. The goal of the thesis is to define the problems that arise in material requirements planning, analyze the functionalities and advantages of MRP systems in material planning, assess the contribution of DDMRP to optimizing planning processes, and evaluate the effectiveness of the DDAE method on the adaptability and efficiency of organizations in material management. This work contributes to the improvement of material requirements planning, reduction of costs and inventory, and enhancement of organizational competitiveness.