[CS] In Cynefin, the Simple System is called the Clear System. The author of the framework, Dave Snowden, now wants all four domains to start with 'C': Clear, Complicated, Complex, and Chaotic. We would not want to support this trend. Firstly, because we think that picking names so that they make nice acronyms is a very American story from the 70s and the value is low. Secondly, an important mental model: it is important for practice that systems are divided into Simple and everything else. There are many articles about Cynefin on the internet, but there is also a book with a detailed description [Dave Snowden – Cynefin: Weaving Sense-Making into the Fabric of Our World].