Assessment of operation plan performance under uncertainty

A plan of military air operations contains a number of sequential and/or pa rallel tasks. Given information of the battlefield situation (including the status estimate of tasks) during the execution of a plan, it is necessary to assess the situation impact on the plan, especially whether the entire p lan would be delayed. Plan performance assessment fuses the status estimate of tasks into the status estimate of the entire plan. The performance asse ssment of the plan assists the commander of air operations to decide the ne ed for plan modification to assure the goal of air operations. The performa nce assessment of the plan must deal with uncertainty in the status estimat e of tasks in the plan. This paper presents a comparative study of two info rmation fusion techniques that infer the status estimate of a plan from the status estimate of tasks under uncertainty: the decomposition technique wi th low computational cost and the composition technique with high computati onal cost. The testing results of these techniques indicate the similar est imation accuracy of two techniques. Due to its low computational cost, the decomposition technique is recommended. Guidelines for applying the decompo sition technique to a large-scale, complex plan of the tasks are also provi ded.