human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Evaluating the quality of entity relationship models"
  Abstract: Abstract   Entity Relationship (E-R) models are at the core of logical database design. This paper describes the development of a model, associated metrics and methodology for assessing the quality of an E-R model. The model was developed by investigating into the causal relationships between ontological and behavioural factors influencing data quality. The methodology describes aggregation of the scores on various metrics to calculate an overall quality score for an E-R model, and use of the model to identify problem areas if the individual quality scores on different factors do not meet organizational standards. Further possible improvement of the model and future research issues are also discussed.

Connected through hyperedge HE-1 (induced by source paper "Evaluation of conceptual models - a structuralist approach"):
  with members:
    - "Ontological Evaluation of Conceptual Models"
    - "A framework for comparing conceptual models."

Connected through hyperedge HE-2 (induced by source paper "Ontological Evaluation of Conceptual Models"):
  with members:
    - "Evaluation of conceptual models - a structuralist approach"
    - "A framework for comparing conceptual models."

Connected through hyperedge HE-3 (induced by source paper "Knowledge-based approaches to database design"):
  with members:
    - "Comparing a rule-based approach with a pattern-based approach at different levels of complexity of conceptual data modelling tasks"
    - "Semantic data models"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science