14-3. During execution, continuous assessment is essential. Assessment involves a deliberate comparison of forecasted outcomes to actual events, using criteria to judge operational progress towards success. The commander and staff assess the probable outcome of the operation to determine whether changes are necessary to accomplish the mission, take advantage of opportunities, or react to unexpected threats. Commanders also assess the probable outcome of current operations in terms of their impact on potential future operations in order to develop concepts for these operations early. (See ADRP 5-0 for fundamentals of assessment. See chapter 15 for details for building an assessment plan).