The Cynefin framework
Liz Keogh: The Cynefin framework is very much about making sense of different situations and how you approach them. For that reason, it's called a "sense-making device." Think of it this way: there are five ordered domains – simple (or obvious), complicated, complex, chaotic, and disorder. The boundaries between them are fuzzy. In the simple, or obvious, domain, problems are easily solved because the solutions are obviously apparent and easily categorized.
Take a landlady in the pub. I say, "What do you do when the beer runs out?" She responds by saying, "Well, I change the barrel, obviously."
When problems enter the complicated domain, they require expertise. A watchmaker can fix your watch, a car mechanic can fix your car, and that's great—both of those have predictable outcomes. In the complicated domain, problems can be analyzed and solved only if you've got the relevant expertise.