“What differentiates an exemplary digital signage installation from environmental noise?”
The challenge is how to stand out amongst everything else that needs or wants to stand out. I think the best approach is simple and clean. The size of the displays should be proportionate to the need and space. It should be placed where it can be easily engaged with by the consumer, but not disruptive to their experience. Above all though is the content. It should be engaging, purposeful, clear and easy to consume. When content is done well, it stands out, captures the eye and gets a second look.