A detailed change impact analysis (CIA), conducted in the SAP Activate Explore or Realize phase, identifies specific changes across processes, technology, organization, and people, leading to follow-up activities. Option C is correct because change management typically takes over developing personas (e.g., “Finance Clerk Sarah”) to tailor communication about impacts (e.g., how new processes affect her day) and creating assets (e.g., newsletters, videos) to convey these messages effectively. This aligns with SAP OCM’s focus on translating CIA findings into stakeholder engagement strategies. For instance, if the CIA shows a process change in accounts payable, change management might craft a persona-based FAQ to address user concerns, ensuring adoption through relatable messaging.

Option A is incorrect—defining roles/responsibilities and adapting policies (e.g., job descriptions, compliance rules) is typically an HR or organizational design task, often led by business leaders or project management, not change management, which focuses on people readiness, not structural redesign. Option B is incorrect; identifying resource constraints (e.g., staff shortages) and mitigation (e.g., hiring plans) falls under project management or business unit leadership, as it’s operational rather than OCM-specific. Option D is incorrect—designing the future operating model (e.g., org charts, workflows) and planning its rollout is a strategic task for business architects or consultants, not change management, which supports rather than owns this process. SAP OCM positions change management as the driver of communication and enablement post-CIA, not structural or resource adjustments.

“Change management takes on follow-up activities from a detailed CIA, such as developing personas and communication assets, to ensure stakeholders understand and adopt identified changes” (SAP Activate Methodology, OCM Workstream, Post-CIA Responsibilities).