Pascal Raabe's User Centered Design Poster

Pascal Raabe has created a very neat poster explaining user centered design. He writes:

This is an information graphic poster illustrating the underlying lifecycle, methods, principles and techniques in a user centred design process where the visual part is only the tip of the iceberg. (...) Although I know that this diagram is by no means complete, I believe that it can be beneficial for students and design practitioners in various disciplines.

I like it.