Demand Driven Material Requirement Planning (DDMRP) is a recent Production Planning and Control (PPC) approach. It has been mainly studied through its reported performance on specific industrial applications or through its parametrization. This article aims to analyze its main characteristics and to compare its behavior with MRP2 in an in-vitro case study. Results show that, in their basic configurations, DDMRP leads to a lower number of orders but of a larger size, and furthermore, to a slightly higher stock level (+6%) but distributed in a different way than in MRP2. Those results allow to a better understanding of some strengths and weaknesses of DDMRP