Before you can understand how to write BR, FR and NFR, it is important for you to understand its function. Business Rule, Functional Requirement and Non-Functional Requirements are developed to provide necessary guidelines to the company so that they can understand the requirement and expectations of consumers. It helps them to enhance their performance and customer friendliness of the platform.

Suggestions:

Research and analysis of past and present factors should be included in the document

Clear and precise language should be used to convey the actual meaning

Document validation should be done properly to ensure there are no mistakes in the business document

Visuals are highly recommended in these documents because adding visuals (such as charts, Scope Model, System Context Diagram and other reference pictures) can contribute to better understanding of the document

Provide necessary reference of the data so that the data can be verified at any time.

Disclaimer: This post is solely for the purpose of education and referencing. There is no other intend behind this post.

Note: I have used the name of BigFarm for example. The use of this name is only for referencing purpose. This document or reference has no real connection with any company or organization.

The documents of BR, FR and NFR requires specific formatting and styling. Therefore, instead of giving lengthy explanation on this, I have drafted example documents. It will help you understand them in better way.

Reference Documents

Business Rule (BR) Document for BigFarm (For Referencing & Understanding)

Functional Requirement (FR) Document for BigFarm (For Referencing & Understanding)

Non Functional Requirement (FR) Document for BigFarm (For Referencing & Understanding)

Conclusion:

When you are developing the strategy on how to write BR FR and NFR, make sure that you give high priority to the preciseness of the document. Your statements should be clean and precise in the business document so that you can convey the actual meaning without losing its connection with originality.