When designing a robot it may help to consider where you think it might do its thing.
So here's perhaps an enumeration of robot working environments:
- entirely smooth vinyl, wood or concrete floor, indoor
- mostly smooth wood or tile floor, indoor
- typical indoor flooring, with transitions (smooth, tiled, carpet and rug)
- relatively smooth outdoor (concrete sidewalk, wood deck, parking lot)
- moderately even suburban outdoor (concrete, lawn, transitions, but no stairs, curbs, or cliffs)
- challenging suburban outdoor (uneven concrete, curbs, stairs, cliffs)
- wild environments (sand or beach, up in the mountains, tree branches, rocks, cliffs, anything goes)
- water surface
- water surface/amphibious
- outer space or other planets
There's also the notion of whether a robot can handle rain or spray. Or on a beach, can it avoid the waves?
See also: Robot Related Goals