Yesterday we did an exercise to explore how many ways there are to direct someone to a specific location. We had written instructions, navigational drawings and maps, all trying to accomplish the same thing. The written instructions were easy enough to follow if they were well written but gave the least reassurance if you were on the right track or not. The other two types were visually based and harder to interpret but once we understood what was going on they made it easy to establish if we were in the correct area as we could visually compare our surrounding to the drawing.
Combining these ideas was the process we used to begin brainstorming for our navigation system. It sparked different ideas, like a system that recognises landmarks and generates directions accordingly, or having a camera-based interface that applies its instructions to what is visible through the camera.
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