Evaluation is one of the most important activities in the didactic materials creation since it allows developers to check if the features of created material satisfy all the requirements established at begin of its development and if that material can be an effective support to achieve the educational goals of a particular instructional situation. Its results provide relevant information for the material redesign in such cases when those requirements or educational goals are not satisfied. In this paper we describe an approach to evaluate IMS LD based materials during their development and deployment in an educational process.