Final answer:
The process involves assessing an online library catalog using Nielsen and Molich's ten usability heuristics, including visibility of system status, match between system and the real world, and user control and freedom. User feedback is also collected and combined to determine the most critical issues to fix. A cognitive walkthrough is then performed to understand users' thought processes in accomplishing a specific task.
Step-by-step explanation:
Given your question, you are asking to evaluate an online library catalog using Nielsen and Molich's heuristics. To do this, we would follow this process: