“Information Architects work to create usable content structures out of complex sets of information. They do this using plenty of user-centered design methods: usability tests, persona research and creation, and user flow diagrams (to name only a few). That said, it still seems that UX design is in vogue. (…) UX builds on the foundation that IA provides, aiming to take that experience to the next level, both creatively and emotionally. This is the outstanding difference that defines how the apps, sites, and products of today are designed as opposed to those of yesterday.”

(Darren Northcott a.k.a. @darrennorthcott ~ UX Booth)