A first time buyer of a swiss knife is always at an experimental stage. The graphics shown is a representation of the use case scenarios through which a swiss knife goes:- 1. Once bought, a buyer tries to experiment it with peeling and cutting fruits etc. 2. Once a little experimentation done; it is time to flaunt the pride possession. It gets used at parties to open up beers! 3.The next stage is always a utility usage such as cutting wires;house work etc. 4. Yes now is the time to explore the knife to its fullest i.e camp fires, jungle trips. 

Hence graphics tries to achieve the same and it starts from bottom to top.