Subject matter expertise is a high level of specialized knowledge, skill, and experience in a particular subject, field, discipline, occupation, or area of practice. It enables a person to understand complex issues within that area, evaluate information, identify errors or gaps, solve problems, and provide informed guidance.
A subject matter expert is a person recognized as possessing substantial expertise in a particular subject or field. Subject matter experts may contribute to activities such as instruction, curriculum development, research, assessment, policy development, product or system design, quality assurance, validation, and decision-making.
Subject matter expertise is related to, but distinct from, domain knowledge. Domain knowledge refers broadly to knowledge of a particular field or area. Subject matter expertise generally implies a deeper and more advanced level of knowledge within a particular subject or component of that domain. A person may have useful domain knowledge without being considered a subject matter expert.
Subject matter expertise is increasingly important in the development and use of artificial intelligence. Subject matter experts may help design, train, evaluate, or validate AI systems and review AI-generated outputs for accuracy, relevance, and appropriate use within a particular field. Their role can be especially important where errors or missing context could affect decisions, learning, services, or other outcomes.
Subject matter expertise does not by itself ensure effective decision-making. Applying expertise appropriately may also require knowledge of the context (understanding of the people and circumstances involved), judgment, and communication skills.
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