Who is primarily concerned with the requirements being correct?

The primary concern with the requirements being correct lies with the customer. The customer is ultimately the stakeholder who defines what the project needs to achieve, as they have specific goals and outcomes in mind. It is crucial for the customer to ensure that the requirements accurately reflect their needs and expectations, as this sets the foundation for the entire project. If the requirements are incorrect, it can lead to a product that does not meet the intended purposes, resulting in dissatisfaction and potentially significant project setbacks.

While testers, developers, and project managers certainly play important roles in the development process, their focus is often on different aspects. Testers may verify that the requirements are met through validation and verification, developers focus on implementing features based on those requirements, and project managers oversee the project's progression and adherence to timelines and budgets. However, the accuracy and correctness of the requirements themselves are primarily the responsibility of the customer, who must ensure alignment with their vision before the project moves forward.