Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by form]
8. electronic documents

Narrower term/s

• operating systems[+]
  • [operating systems by specific type] [+]
    • DOS
• programs (computer)[+]
  • applications [+]
    • mobile apps
    • web apps
    • database software
    • diagnostic software
    • gaming software
    • email software
    • graphics software
    • security software
    • utility software
    • word processing software
    • spreadsheet software
  • malware
  • browsers
• open source software
• firmware
• multifunction software
• specialty software

Anotations

Scope note:

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. For individual collections or sequences of code provided by a user to perform a particular task, use "programs." For programs that serve a particular purpose and that may be packaged and sold by a manufacturer use "applications."