Evaluation jobs are sent from the Application Server to one of the Data Processing Service (DPS) Load Balancers. The DPS Load Balancer then sends the evaluation job to the DPS Evaluator. The evaluator compares the data to the specifications in the Standards that you select and then stores the evaluation results in the production database.

If you have more than one evaluator, the DPS Load Balancer assigns evaluation jobs to the evaluators sequentially. If a DPS Evaluator is unavailable, the load balancer skips it and uses the next available evaluator. This round robin assignment gives limited fault tolerance.