The fundamental idea of a walkthrough is to think as the user would, evaluating every step of a task in an interface for usability problems. One of the more common walkthrough methods is a Cognitive Walkthrough77 Polson, P. G., Lewis, C., Rieman, J., & Wharton, C. (1992). Cognitive walkthroughs: a method for theory-based evaluation of user interfaces. International Journal of Man-Machine Studies. . Despite having been published in the early nineties, the technique is quite general, since it focuses on what people are thinking while using an interface rather than the interface.
I totally agree with this quote. I like that cognitive walkthroughs focus on what people are actually thinking as they move through an interface, instead of just how the interface looks. It shows that even older methods can still be super relevant, since understanding the user’s mindset never really goes out of style.