Concept Mapping may be seen as a type of brainstorming . Both Mapping and brainstorming may be used to encourage the generation of new material, such as different interpretations and viewpoints. However, Mapping relies less on intentionally random input, whereas, during brainstorming, one may try to think up wild, zany, off-the-wall ideas and connections. Brainstorming attempts to encourage highly divergent "lateral" thinking, whereas Mapping, by its structure, provides opportunity for convergent thinking, fitting ideas together, as well as thinking up new ideas, since it requires all ideas to be connected to the centre, and possibly to one another. Paradoxically, the results of brainstorming usually appear on paper as lists or grids -- both unavoidably linear structures: top to bottom, left to right. Mapping is less constrictive -- no idea takes precedence arbitrarily (by being at the "top" of the list).