Final answer:
Making repairs and modifications to the system is referred to as systems maintenance, which ensures the system operates properly by correcting issues and updating software.
Step-by-step explanation:
Making repairs and modifications to the system is known as systems maintenance. This involves regular checking and updating of the system to ensure it operates correctly, efficiently, and effectively. It includes correcting issues, updating software, and making improvements over time. A system implementation is when a new system is put into operation. A post-implementation review happens after a system is implemented to ensure it meets its intended purpose. Finally, systems operation refers to the day-to-day running of a system.