* Computer Science: binary search tree * Internet: [usenet hierarchy]? * Biology: [classification of species]? * Information management: [Dewey classification]?, [[Yahoo! Subject Index]] |
* Internet: [usenet hierarchy]?, [[Yahoo! Subject Index]] * Information management: Dewey Decimal System |
* Business: [pyramid selling scheme]? |
Specializations: rooted hierarchical tree structure
Involved in: Nothing yet
Primary Domain: Computer Science
Potential Examples: