b) Query engine: The overall plan is to populate the MREP with models that are initially in accordance with MIDAS goals, which are currently limited to infectious disease models. Eventually, we anticipate including models from a broader perspective; namely, models that are relevant to any pathogen and appropriate transmission environment. This will potentially necessitate using a query tool to readily identify models of interest. For example, the MIDAS ABMs use synthetic population data that describe a specific geographical region. The model results identify individuals that influence disease spread within that region. The query tool enables users to identify a set of model results that pertain to a region of interest. Then, by using the geospatial identifiers that are tagged to individual model results, users can drill down into subregions and neighborhoods that are affected by epidemics. Please note that it is possible to use the search keys to identify the studies that focus on a particular type of intervention strategy, and then, by examining Model Version details, determine the implementation details to decide a target computer to rerun the model. This could be done to replicate earlier results or to begin the process of modifying parameters to assess new interventions.