Most things need a mix of taxonomic approaches.

The world is organized in seemingly endless ways, but in reality, every form can be broken down into some taxonomic patterns.

Hierarchy, heterarchy, sequence, and hypertext are just a few common patterns. Most forms involve more than one of these.

A typical website has a hierarchical navigation system, a sequence for signing up or interacting with content, and hypertext links to related content.

A typical grocery store has a hierarchical aisle system, a heterarchical database for the clerk to retrieve product information by scanning a barcode, and sequences for checking out and other basic customer service tasks. I was even in a grocery store recently where each cart had a list of the aisle locations of the 25 most common products. A great use of hypertext.

A typical book has a sequence-based narrative, a hierarchical table of contents, and a set of facets allowing it to be retrieved with either the Dewey Decimal system at a library, or within a genre-based hierarchical system used in bookstores and websites like

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