If the purpose of our review is to determine if we are building the right product, what are we focused on?

Focusing on whether we are building the right product directly relates to the concept of validation. Validation is the process of evaluating a system or its components during or at the end of the development process to determine whether they satisfy the specified requirements. In this context, it means confirming that the product meets the needs of the stakeholders and aligns with their expectations and requirements.

This is fundamentally different from verification, which is concerned with whether the product is being built correctly according to specifications or design requirements. While usability and correctness of design are important aspects of product development, they do not directly address the overarching question of whether the product being constructed fulfills the intended purpose or need in the first place. Validation ensures that what is being developed is indeed what the users require and adds value to their experience.