Question

Provide a definition of “classification hierarchy” and illustrate your definition with an example of how and why a grocery store chain would use it in a data mining process.

Answer 1

A hierarchical system is used for classifying organisms to the species level. This system is called taxonomic classification. The broadest classifications are by domain and kingdom; the most specific classification is by genus and species. The hierarchical groupings in between include phylum, class, family, and order.

In biological classification, taxonomic rank is the relative level of a group of organisms (ataxon) in a taxonomic hierarchy. Examples of taxonomic ranks are species, genus, family, order, class, phylum, kingdom, domain, etc.