Use wireframes to test scenarios

So you've set the scope and defined what features you want to test and what user goals they help achieve. The next step is creating wireframes to help you visualize the features of your inspection.

Make sure the wireframes are detailed enough, contain wireframe text, and cover all scenarios you want to test. Wireframe fidelity depends on your goals and budget. You can test pretty much anything — from hand-drawn sketches to digital click-through prototypes. However, the latter provides a more realistic experience of working with a product.

In any case, usability inspections should bring up crucial usability issues.