Final answer:
Natalie exemplifies the controlling step of the management process by utilizing client feedback to improve software, indicative of performance monitoring and adjustment for goal achievement.
Step-by-step explanation:
Natalie's actions in evaluating feedback from clients and using that information to update and fix the software for all customers is an example of the controlling step in the management process. This phase involves monitoring performance to ensure that the organizational goals are being met and making improvements as necessary. It aligns with activities such as refining product design based on customer feedback, adjusting the project to better meet objectives, and evaluating program effectiveness to develop lessons learned.