Which core competency of the Lean Enterprise focuses on the integration across multiple Agile Release Trains (ARTs)?

The core competency that focuses on integration across multiple Agile Release Trains (ARTs) is Enterprise Solution Delivery. This competency is essential for organizations that develop large-scale, complex solutions that often require coordination among several ARTs and teams.

Enterprise Solution Delivery encompasses the practices, tools, and mindset necessary to integrate and coordinate work across these ARTs effectively. It emphasizes collaboration and alignment, ensuring that multiple teams can work together seamlessly to deliver high-quality products. This competency also involves managing dependencies, optimizing the flow of work, and ensuring that all teams have a shared understanding of the solution being developed.

In contrast, the other competencies serve different purposes within the Lean Enterprise framework. Lean Portfolio Management focuses on aligning strategy with execution and managing investments in a way that maximizes value delivery. Continuous Exploration is centered on understanding customer needs and validating solutions through ongoing exploration. Team and Technical Agility pertains to the operating practices of individual teams, emphasizing their ability to deliver high-quality work through Agile and technical practices.

By understanding these distinctions, it becomes clear why Enterprise Solution Delivery is the appropriate answer for coordinating efforts across multiple ARTs.