Final answer:
A SME or subject matter expert is an individual with deep understanding and expertise in a specific domain, helping with project development, problem-solving, and providing specialized knowledge.
Step-by-step explanation:
A subject matter expert (SME) is an individual who possesses a deep understanding and expertise in a particular domain or topic. Their role typically includes providing insights and knowledge which may not be readily available to others in the organization. They also contribute to the development of projects, create content, and can be consulted to solve complex issues that require a specific expertise.
Experts often have a pretty good sense of the answer even before a detailed analysis. This intuition can help identify possible mistakes and force a closer look, which is essential in ensuring accuracy and reliability in project outcomes or decisions that involve specialized knowledge.