You are the business analyst for your organization and you're working with Adam on business analysis processes. Adam is steeped in knowledge regarding the project's purpose. Of the following, what type of business analysis stakeholder is Adam?

A domain subject matter expert (SME) is an individual with in-depth knowledge of a topic relevant to the business need or solution scope. Adam's description as being "steeped in knowledge regarding the project's purpose" directly aligns with the role of a domain SME, who provides essential information and insights about the business area under analysis.

A. Project manager: This role is responsible for managing the project's execution, schedule, and resources, not necessarily for having deep domain knowledge.
C. Sponsor: This role authorizes the project and secures funding. While they understand the project's purpose, they are not typically the source of detailed domain expertise.
D. Regulator: This is an external stakeholder responsible for defining and enforcing standards, not for providing internal knowledge about the project's purpose.

1. IIBA, A Guide to the Business Analysis Body of Knowledge (BABOK® Guide) Version 3, 2015, Section 2.2 Stakeholders, p. 21-22.

2. Podeswa, H. (2009). The Business Analyst's Handbook. Cengage Learning. Chapter 2 discusses stakeholder roles, defining the domain expert as the primary source of business knowledge.