You are the business analyst for your organization and you're working with Adam on business...

A domain subject matter expert is a stakeholder who has extensive knowledge and experience in the business area or problem domain that is relevant to the project. They provide valuable insights and information to the business analyst and help to define and validate the requirements and the solution. Adam, who is steeped in knowledge regarding the project’s purpose, is likely to be a domain subject matter expert.

References: The information is aligned with the competencies and knowledge areas defined in the Business Analysis Body of Knowledge® (BABOK® Guide) and the Certification of Capability in Business Analysis™ (CCBA®) as provided by the International Institute of Business Analysis (IIBA®). For detailed references, please consult the CCBA® guide1 and the BABOK® Guide2 available through the IIBA® website and bookstore3. You can also find some useful resources and sample questions from other sources4.