WIREFRAMES - After iterating, I turn the sketches into wireframes and add more details & specifics about specifically how the idea would work. These are useful for a variety of reasons - not only can I test this new version with users but I can also run it by the developers (if they have not already been involved). This is a great time to find out about any potential issues with the new designs; that way we can work together & collaborate to find a suitable alternative before any time gets wasted on an idea that can't be built.
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