What is Usability?

Let’s begin at the beginning by answering this simple question. Usability is simply how easy it is for a user to understand and operate your ‘thing’ and accomplish their goals. This ‘thing’ could be a Web site, a car, a refrigerator, or an MP3 player…it doesn’t matter. What matters is that your customer immediately understands how to work with it without having to read the user manual. The ‘learning curve’ should seem invisible and users should feel delighted with the ease-of-use and the efficiency of completing their task.