A Business Requirements Document (BRD) is a formal contract between the customer and the organization for a product.
The difference between BRD and SRS are as follows:
|It is a high-level functional specification of the software.
||It is a high level functional and technical specification of the software|
|It is a formal document to describe the requirement provided by the client (written, verbal)
||It describes the functional and non-functional requirements of the software to be developed|
|The Business Analyst creates it after their direct interaction with the clients
||The System Architect creates it as it needs technical expertise. Though sometimes Bas too can create it.|
|It is derived based on the requirements and client interaction
||It is derived from the BRS|