Yes this is the most common way that most people follow. Probably the best also (at least for Germany i guess).

I follow the other way (better for me personally). You make a little hole in the ground, then put the potato and cover it with just a few soil. Make the holes in lines. The few soil will make them grow faster (in Greece many people harvest twice per year, me once because i am in a colder region). When they had grown enough, it is then you make the little hill and that is for two reasons. One for the potatoes to have humidity (the sun gets cruel, no need for extra warmth) and second by this way you remove in a convenient point, other wild plants that had grown.

Btw mine will bloom very soon, it has been more than a month ago that i had planted them.