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 "Workspaces: an architecture for editing collections of objects"):
  Abstract: Many tools create new user interfaces by compositing them out of smaller pieces. This usually leads to variations on the dialog box to edit a single composite object. Workspaces are a model for compositing together various editors to manipulate sets of objects and their attributes. The workspace components communicate in terms of a  selected set  and the attributes possessed by objects in that set. This model has been implemented as part of the Sushi UIMS.

Includes members:
  Member "Garnet: comprehensive support for graphical, highly interactive user interfaces":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "COLLAGEN: A Collaboration Manager for Software Interface Agents")
  Member "Window real objects: a distributed shared memory for distributed implementation of GUI applications":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "SOL: a shared object toolkit for cooperative interfaces")

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