Five principles of Japanese cooking

Niceties mentioned the "five principles of Japanese cooking" in her guest post last month. Apparently they should all be part of traditional cooking. They go something like: Five colours - white, red, yellow, green, black/other dark colours Five tastes - salty, sour, sweet, bitter, umami/spicy (which is right?) Five cooking methods - simmering, grilling, steaming, frying, aemono (cooked salads) Five senses - taste, smell, sight, sound, touch And then there are the five outlooks which are more kinda philosophical I think. Does anyone Japanese or non-Japanese use this in their cooking?
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