Model-Driven Architecture (MDA) is a framework for software development focusing on models and model transformation. One of its models is the computation independent model, which describes the system environment and requirements. Representing this model and transforming it into a platform independent model typically involves Requirements Engineering approaches and diagrams. However, it is not clear how Requirements Engineering concepts are related to MDA models. To improve the understanding of MDA and to define which artifacts are expected from a Requirements Engineering perspective, this paper proposes mapping a requirements reference model, the WRSPM model, and Model-Driven Architecture models.