Marko analyzes the information obtained from management to understand and define the operational problems. He also analyzes the information about alternative courses of action for determining a plan offering the best outcomes. Marko gets the ideas about the current system in operation and collect the information about each parts of the component problems using a variety of sources. He prepares the management reports that define and evaluate the problems and recommending solutions. He performs the validation and testing of models for ensuring the adequacy and reformulate models as necessary.