The MREP represents a one-of-a-kind resource for housing and cataloging infectious disease models. The strength of the MREP's design is its data model hierarchy that accurately portrays the stages of a study and its derivatives, at least from the MIDAS perspective. This data model begins with a high-level study as represented by an overall set of study objectives and design specifications and culminates at a low level with a set of runs (results) that contribute to assessing those objectives. In between the studies and the runs linked to those studies are the experiments that represent the different and independent points of view characterized by different research groups and the models those groups used to generate their results. The final data model design element is based on the assumption that containment strategies are not always accommodated within a single model; a change in the model code is sometimes the favored approach for representing simulated behavior differences, that is, the containment strategy responses.