Final answer:
The skill not necessary for the control process is personal willingness; essential skills include accurate measurements, timely process, and graphing objectives.
Step-by-step explanation:
The skill not required to measure actual performance for the control process is 'You must be willing to measure'. Carrying out accurate measurements (conduct accurate measurements), ensuring timeliness in the measurement process (timely measuring process), and graphing performance objectives and standards (graph performance objectives) are essential skills for effective control. However, the willingness to measure is not a skill but rather an attitude or personal trait.
Skills Required for Measuring Performance
The ability to conduct accurate measurements ensures that the data collected is correct and that any decisions based on this data are valid. Being timely in the measuring process helps in making the necessary adjustments and ensures that corrective actions are not delayed. Lastly, being able to graph performance objectives is crucial for a visual representation of data, which aids in easier analysis and comprehension. When performing measurements, it's important to be aware of the potential for uncertainty, whether from the limitations of the measuring device or the skill of the person making the measurement.