No single user is “special” – or maybe all users are? Either way you look at it, we as interaction designers will encounter contexts of use or knowledge domains out of the ordinary at some point or other during our career. In my experience, designers need not apply magic tools when designing for special situations. It is however beneficial to bear in mind some core differences between specialized use contexts and the mainstream use of a mass consumer product such as a social networking site or a mobile phone. And that’s what I want to focus on in this article. … »