Definition: An SME is a subject matter expert, the individual who understands a business process or area well enough to answer questions from people in other groups who are trying to help. SME is most commonly used to describe the people who explain the current process to IT and then answer their questions as they try to build a technology system to automate or streamline the process.
Also Known As: Subject Matter Expert
Examples:Before you decide how to program the A/P interface to the payroll system, check with Mary. She's the A/P SME.