Among the various objects that we touch on an everyday basis, the outdoor keypads always catch my eyes each time. Called "digicode" in France (standing for "digital code"), the examples in this blogpost are a small sample that I ran across in Paris last week-end. The first one (above) is definitely the classic and clean version of the standard model in Paris. The keypad layout, a topic we already addressed here about the iphone is the classical "dial layout" that comes from the telephone set (as opposed to the calculator layout) with 1 2 3 on the first line.

The other examples below reveal some interesting features about touch interactions:

This one nicely shows what happens over time when people input codes. Buttons with dirt and patina on 1 2 3 6 9 A reveal their frequent usage (and possibly inspire stalkers and people who want to sneak in). Nonetheless, it's inevitable and it's how things age. But wait a minute, this one has the "calculator layout" with the 7 8 9 above, another intriguing component, which may be caused by the fact that this "coditel" brand could prefer this setting.

At night, Paris doorways features these red (or blue)-lighted versions that aims at helping people to locate the correct keypad structure.

And finally, this one, a bit messed-up for some reasons beyond my understanding depicts a nice and nonchalant design.

Why do I blog this? documenting everyday objects, as usual here. In a time of "touch interactions" craziness (towards iphone and interactive table), I find interesting to revisit existing touch interfaces and understand the whole gamut of design issues.