Describe the 'dual-track Agile' approach.

The dual-track Agile approach is characterized by the simultaneous execution of product discovery and product delivery. This method involves two distinct tracks that run parallel to each other. The discovery track focuses on understanding user needs, validating ideas, and defining features through user research and prototyping, while the delivery track is concerned with implementing and releasing the developed features.

By conducting both tracks concurrently, teams can ensure that the development work is informed by continuous feedback and insights from users, thus allowing for a more responsive and adaptive development process. This approach fosters collaboration between teams and ultimately leads to better product outcomes, as it aligns the discovery of user requirements with the capabilities of the delivered product.

The other options do not accurately capture the essence of dual-track Agile, as it is not limited to software delivery alone, nor is it exclusively about user research. It also does not pertain to measuring project profitability, which falls outside the core principles of Agile methodology.