For the English readers: This article is written in German. If the ideas get more ripe, then I think I’ll translate it into English. So long, you have to rely on Google Translate (and it does a remarkably good job).
Lately, I came across an old presentation of Adam Bien about Vernunft-Driven-Design (in English: Rationality- or Reason-Driven-Design). I generally like the mindset of Adam Bien and I found it particularly interesting that he talks about non-technical stuff in this video.