What is the focus of user documentation?

The focus of user documentation is primarily on providing user guidance and information. This documentation is designed to help users understand how to effectively use a software product or system, detailing its features, functionalities, and overall operation. It typically includes instructions on installation, troubleshooting tips, and step-by-step guides tailored to different user needs.

User documentation plays a critical role in enhancing the user experience by making complex systems more accessible. It empowers users to resolve issues independently and utilize the system's full capabilities, thereby reducing reliance on technical support. By prioritizing clarity and ease of understanding, user documentation helps ensure that the intended audience can maximize the benefits of the software.

In contrast, the other options encompass different aspects of the software lifecycle and business strategy that do not directly focus on the user's needs or experiences. For instance, the system development life cycle relates to the phases involved in creating a software system, product marketing emphasizes promoting the product to potential customers, and performance metrics pertain to measuring the system's efficiency and effectiveness rather than informing users on how to use it effectively.