This is an algorithm for deciding whether a patient suffers from a specific disease or not:
A patient has rheumatoid arthritis if at least four out of the following seven symptoms are present:
- Symmetric swelling (arthritis)
- Rheumatoid nodules
- The presence of rheumatoid factor (in serum)
There are similar classifications for many conditions. I remember seeing a specific term used for this kind of definition. It was fairly technical and could be unique to the fields of medicine or medical informatics.
What is this definition type called?