Contains
- hierarchical classification system
A classification system where entries are arranged based on some...
- file system
A system of classifying into files (usually arranged alphabetically).
- grouping
A system for classifying things into groups.
- rating system
A system of classifying according to quality or merit or amount.
- ABO blood group system
A classification system for the antigens of human blood; used in blood transfusion...
- Dewey decimal classification
A system used by libraries to classify nonfictional publications into...