Cognitive mapping is an information visualization technique that can be used as a decision-and sense-making tool. It is most effective when used to structure complex problems and to inform decision making.
Cognitive Mapping is Day 12 of 100 Days of UX, an exploratory effort to survey the 100 methods of design outlined in Martin and Hannington's Universal Methods of Design. For 100 consecutive days, I learn one new method a day and write about it.