- 当一个不可能出错的事物出错了，通常也就意味着不可修复 – Douglas Adams，《基本无害》（1992）
There is a secret that needs to be understood in order to write good software documentation: there isn’t one thing called documentation, there are four.
They are: tutorials, how-to guides, technical reference and explanation. They represent four different purposes or functions, and require four different approaches to their creation. Understanding the implications of this will help improve most documentation - often immensely.