In the previous edition of the book, this chapter started with the following paragraph:
"User experience design is part art, part craftsmanship; the fusion of methodology and patterns with creative problem solving. The prototype plays a major role in the success of UX projects because it is simultaneously a concrete interactive preview of both the vision for and the actuality of the application being designed. For the UX designer, Axure offers the ability to deliver simulations of rich interactive user experience, quickly, iteratively, and without having to know programming."
These statements still hold true and the only update here would be:
With the introduction of new features such as Adaptive Views and ...