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Guide on Non-Functional Requirements in User Stories in Scrum

What is it: Non-Functional Requirements (NFRs) in scrum refer to the system attributes of the software, such as security, reliability, performance efficiency, maintainability, usability, and portability. These are not about the 'functionality' that the software will perform but about how the system will 'behave'.

Importance: NFRs are crucial because they define the system's behavior. These play a key role in the user experience and overall quality of the software. Without considering NFRs, the developed system could meet all its functional requirements but still fail to satisfy the user.

How it works: In a Scrum framework, NFRs are elements of 'Definition of Done' which is the understanding of quality for every product increment.

Examples of including NFRs in user stories: 'As a user, the system should load the dashboard in no more than 2 seconds', or 'As a system admin, I want to ensure the system can accommodate at least 10,000 simultaneous users.'

How to answer questions on NFRs in an exam: Understand the concept and importance of NFRs thoroughly. Practice including NFRs in user stories. In the exam, read the question carefully and analyze what NFR would be appropriate for the described situation.

Exam tips:
1. Always consider NFRs when writing user stories, especially for the system's essential behaviors.
2. Remember that NFRs represent qualities, not functions.
3. Practice incorporating NFRs into your definition of 'Done'.
4. Be clear on terms used to describe NFRs such as usability, reliability, maintainability, etc.
5. In the exam, focus on the behavior that the software must exhibit. Don't get distracted by the functionality that the software will perform.

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Non-Functional Requirements in User Stories practice test

Non-Functional Requirements (NFRs) in user stories refer to the aspects of the system that do not perform a specific task but support the system to operate effectively. These could include performance, security, usability, compatibility standards, etc. Expressing non-functional requirements as user stories can be challenging because they often are system-wide and not tied to a specific feature or functionality. However, incorporating them into User Stories help define the 'definition of done' and ensure these elements are considered during product development. It also assists the team in focusing on the overall quality, reliability, and efficiency of the system.

Time: 5 minutes   Questions: 5

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  • 3547 Superior-grade Professional Scrum Master I practice questions.
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