What are the key differences between FRD and BRD in the context of business analysis?

FRD (Functional Requirements Document) and BRD (Business Requirements Document) are both important in business analysis. The key difference is that FRD focuses on the specific functions a system must perform, while BRD outlines the overall business objectives and goals that the system should help achieve. In essence, FRD details how the system will work, while BRD explains why the system is needed and what it should accomplish for the business.