Buzz Usborne’s “God is in the details” is a great reminder that spending just a little time thinking things through a bit more that usual can have a big impact on user experience:

But it’s those little things, the tiny minutia of detail, that ultimately make beautiful products, and beautiful houses.

Unfortunately, when I refer to the “details” in product design, I’m not talking about obvious design things; like colours, drop-shadows or placement. Instead I’m referring to something harder to define; experience and subconscious patterns that help the user feel more at-ease with an interaction. That detail might come in the form of a change in cursor, a “down” style for a button, or a helpful animation.

Whatever form that detail takes, I’ll bet that it wasn’t designed in Photoshop, or included in even the most detailed spec document. It’s the details that fall outside of titles like UX, or UI. It’s interaction detail that can only be found after using a product for real, then dedicating solid design and engineering time to building.

I definitely agree with that last bit as well. I’m working on a prototype for a new app at the moment, and it’s only after we did usability testing with real target users that we discovered some interactions that would make the app a lot easier (and more useful) for users.