human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "A reduced test suite for protocol conformance testing"):
  Abstract: {}

Includes members:
  Member "A protocol test generation procedure":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "Test development for communication protocols: towards automation")
  Member "Formal methods for protocol testing: a detailed study":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Test development for communication protocols: towards automation")
  Member "Toward automatic generation of novice user test scripts":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "GUI testing using computer vision")

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science