Enterprise architecture is a description of the current and future structure and behavior of an organization's processes, information systems, personnel, and organizational sub-units, aligned with the organization's core goals and strategic direction1. It provides a holistic view of the organization and its interactions with other entities. Enterprise architecture is an input for stakeholder analysis because it helps to identify the existing organizational units and their relationships, roles, responsibilities, and dependencies2. References:
Business Analysis Expert Certification, CCBA® | IIBA®, section "BABOK® Guide v3" Certification of Capability in Business Analysis (CCBA®) Handbook, page 5, section "4. Review the Exam Blueprint"