Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. People (hierarchy name)
4. people (agents)
5. [people by occupation]
6. [people in science-related occupations]

Anotations

Scope note:

Individuals, companies, or corporations engaged in the development of software, which includes computer system programs, procedures, and associated documentation concerned with the operation of data processing systems, and which require hardware for use to be made of them.