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:
| BRD | SRS |
| 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 |
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