Classification

every single word is a classification, a container of different width

animal kingdom

how do you get very fast to the place you want

need this to structure my ideas

Classification of music → different genres, neccessary but not true

Classification of Animals → interesting system

Classification of Ideas → what i need

Classification of buying on a (online) shop → get to where you want

Language is mostly classification

Its different levels of abstraction

the same thing like buttons

very important for app design, how do you find your apps