What is one efficient method for providing user instructions on program modifications?

Updating an online help system is an efficient method for providing user instructions on program modifications because it allows users to access the information immediately and conveniently whenever they need it. An online help system can be easily updated to reflect the latest changes in the program, ensuring that users always have access to current and relevant information. This method also accommodates a wide audience, as users can refer to the help system from anywhere at any time using various devices. Additionally, it can be structured to include search functionalities and interactive elements, enhancing the user experience further by making navigation easier and information retrieval faster.

In contrast, distributing printouts of manuals may become quickly outdated and lacks the interactive capabilities of an online system. Video tutorials, while useful, may not always address specific user queries efficiently and can be time-consuming to produce and consume. Conducting face-to-face training is beneficial, but it's often less scalable and requires more resources and scheduling consideration.