In the Scaled Agile Framework (SAFe), Product Management holds the content authority for the Agile Release Train (ART) Backlog. This responsibility includes defining, prioritizing, and validating Features to ensure the solution effectively addresses customer needs and meets business objectives. They collaborate extensively with System Architects on enabler features and with Business Owners on strategy, but the ultimate decision-making authority for the ART Backlog's content rests with Product Management. They are responsible for the vision, roadmap, and the economic prioritization of the features that the ART will deliver.

A. System Architect: The System Architect is responsible for the system's technical and architectural vision and runway, not the overall business and user-facing content of the ART backlog.

B. Business Owner: Business Owners are key stakeholders who provide governance and guidance on business value and ROI, but they do not manage or own the ART Backlog's content.

C. Product Owner: The Product Owner has content authority for their specific Agile Team's Backlog (containing Stories), not the higher-level ART Backlog (containing Features).

1. Scaled Agile, Inc. (2023). Product Management. Scaled Agile Framework. Retrieved from https://www.scaledagileframework.com/product-management/.

Reference Point: The article explicitly states, "Product Management has content authority for the ART Backlog." It details their responsibilities, including defining Features, prioritizing the backlog using WSJF, and establishing the program vision.

2. Scaled Agile, Inc. (2023). ART Backlog. Scaled Agile Framework. Retrieved from https://www.scaledagileframework.com/art-backlog/.

Reference Point: Under the "Managing the ART Backlog" section, it is stated, "Product Management is responsible for the ART Backlog."

3. Scaled Agile, Inc. (2023). Product Owner. Scaled Agile Framework. Retrieved from https://www.scaledagileframework.com/product-owner/.

Reference Point: This article clarifies the distinction, stating, "The Product Owner (PO) is a member of the Agile Team who is responsible for defining Stories and prioritizing the Team Backlog," confirming their scope is at the team level, not the ART level.