The Service Taxonomy subview is designed to organize knowledge according to the service perspective, and to facilitate the harmonization of services across several domains (or several architectures).

A taxonomy is basically a system of classification. Its general purpose is for organizing one's knowledge of something into categories of similar things, in order to understand something better through comparison with other similar things. In the Service-Oriented View, the service taxonomy represents the operational domain's knowledge, as described in the Operational View, in terms of services, structured in some useful way. The definitions of the services are defined in NSOV-2.

With HOPEX NAF, you can create services with categories.

You can also create structure and tree diagrams to decompose and represent the hierarchy of these services. Service points and service components can then be added to the diagrams.