How to dissect business requirements from software requirements in a requirements statement? [closed]

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I am trying to make a Business Requirements Document and a separate Software Requirements Specifications document. From the following requirements statement, can anyone help me dissect business requirements from software requirements?

Design a system that will maintain positions in real time based on a feed of transactions – buys and sells – that come to the application via MQ. You should include initial positions loads, fault tolerance and error checking and handling for the process.

Thanks

Answer 1

What is the business process for maintaining positions? When does the business need a position? What triggers the need? What steps/tasks maintain a position? When is a position no longer required? Get answers to these questions and you will have business requirements.