Domain knowledge is the specialized knowledge, concepts, terminology, practices, processes, and context associated with a particular field, discipline, industry, occupation, or area of work. It enables a person to understand how a field operates, interpret information within that context, recognize what is relevant or unusual, and apply general skills appropriately to real-world situations.

Domain knowledge may be developed through formal education and training, work experience, professional practice, research, and/or other forms of learning. It can range from foundational familiarity with a field to highly advanced knowledge developed over many years.

Domain knowledge is related to, but not identical to, subject matter expertise. Domain knowledge refers to the knowledge associated with a particular field or area. Subject matter expertise generally describes a higher level of specialized knowledge or proficiency held by an individual within a particular subject. A person may possess useful domain knowledge without being considered a subject matter expert.

Domain knowledge is increasingly important in workplaces that use artificial intelligence and other advanced technologies. AI systems can generate, analyze, and organize information, but people with relevant domain knowledge are often needed to evaluate whether the outputs are accurate and appropriate within a specific context. Domain knowledge can complement technical and AI skills by helping workers apply technology effectively and exercise informed judgment.

See: Subject Matter Expert / Subject Matter Expertise | Learn & Work Ecosystem Library