- Jiro Kawakita argued that Classification. of data in top-down assumes Existing Structure, which hinders the discovery of New Structure. He created the KJ method, which emphasizes bottom-up assembly of data.
On the other hand, Buzan’s mind-map and Barbara Minto’s “The Art of Thinking and Writing” recommend a top-down tree structure.
The card itself is also assembled from the bottom up. First, concrete examples of blind spots that were noticed or perspectives that changed are collected, and then abstractions are made.
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