Where the first picture only requires to gently caress the button, the second is strikingly more aggressive and requires the presence of an RFID tag to open up the access. In the first case, the symbol depicted is the hand, the situation is more complex in the second one with this non-universal pictogram. Besides, there is also this very non-user-centered number on a white sticker that reveals a different interaction "flavor". Finally, the concrete wall also reveals the different context definitely more oriented towards car drivers who want to enter a parking lot.