Which of the following is NOT a common responsibility or goal of an SRE?

The reasoning behind the selection of user interface as not being a common responsibility or goal of a Site Reliability Engineer (SRE) lies in the core focus of the SRE role. SREs primarily concentrate on operational aspects of software systems, translating to ensuring system reliability, performance, and efficiency. Their main objectives include maintaining system uptime, addressing incidents promptly, and implementing automation to streamline processes.

In contrast, user interface design is typically associated with the roles in user experience (UX) or front-end development. While SREs may consider how system performance impacts user experience, they do not directly engage in designing or developing user interfaces. Rather, their responsibilities are more aligned with ensuring that the systems supporting those interfaces operate smoothly and reliably.