Your company acquired another company. The sponsor asked you to check the other company's current inventory of work and see what could be added to your current portfolio. You have a meeting coming up to show the sponsor the portfolio dependencies. Which document should you be showing him?

The Portfolio Roadmap is the most suitable document for communicating dependencies to a sponsor. It is a high-level, visual artifact that illustrates the timeline of portfolio components, their key milestones, and, crucially, the dependencies among them. Its graphical nature makes it an effective communication tool for executive stakeholders like a sponsor, as it clearly shows how existing and newly acquired components will interact over time. This helps in understanding the overall flow of value delivery and potential integration challenges, which is exactly what is needed in a post-acquisition scenario.

B. The Portfolio Charter authorizes the portfolio and defines its high-level goals; it does not contain detailed component timelines or dependencies.
C. The Portfolio Management Plan describes how the portfolio is managed (e.g., the process for dependency management) but does not visually represent the actual dependencies.
D. Portfolio Strategic Plans outline strategic alignment and objectives. They provide the "why" but do not typically illustrate the "when" or the specific inter-component dependencies.

- Project Management Institute. (2018). The Standard for Portfolio Management (4th ed.). Section 4.4, Portfolio Roadmap, p. 58. The standard defines the roadmap as "a high-level timeline that depicts the portfolio components, key dependencies, and other relevant information" and notes it is a "key communication artifact for portfolio stakeholders."

- Teller, J. (2013). Portfolio risk management: a project-oriented perspective. Project Management Journal, 44(2), 79-93. https://doi.org/10.1002/pmj.21329. This paper discusses inter-project dependencies as a key area of portfolio risk, highlighting the need for tools like roadmaps to visualize and manage them.