A domain expert, also called a subject-matter expert or SME, has specialized knowledge gained through education, practice or sustained experience in a field. In clinical AI, domain experts can identify whether an output preserves medically important context and decisions.
Domain experts help convert real failures into labels, explanations and evaluation criteria that technical teams can use. Their input is most valuable when the workflow records the reasoning behind a judgment instead of reducing it to an unexplained pass or fail label.
Acronyms and aliases
SME acronymsubject-matter expert synonym
Related terms
Frequently asked questions
What does SME mean?
SME means subject-matter expert, a person with specialized knowledge and practical judgment in a particular field.
Why are domain experts needed for AI evaluation?
They can recognize contextual errors, explain their consequences and define criteria that generic evaluators may not understand.
