“What really differentiates user-centered design from a more traditional waterfall model of software design is the user feedback loop, which informs each phase of the project. This feedback loop is established through the use of a range of techniques that have become the staple for UX Designers. There are a ton of them, and knowing when to use which techniques during which phase of a project comes with experience. Personally, I find experimenting with new techniques and tweaking old favorites is part of the fun of being a UX Designer.”
(Matthew Magain a.k.a. @mattymcg ~ UX mastery)