A preliminary check to ensure the ABM generates outputs that are broadly in line with our understanding of the real system.
Validation Process: Compares the model's output for these characteristics with the real-world data. This might involve:
How well can the model output capture the features of the data used to build the model?
In a weather forecase model, descriptive validation would check if the model predicts sunny or rainy days that are generally consistent with the historical weather patterns of the location.
In a traffic flow model, descriptive output validation might compare the simulated number of vehicles on specific roads during rush hour with actual traffic data collected from sensors.