📌 Non-Functional Requirements Summary
Non-functional requirements describe how a system should perform rather than what it should do. They focus on qualities like speed, reliability, security, and usability. These requirements help ensure the system meets user expectations beyond its basic features.
🙋🏻♂️ Explain Non-Functional Requirements Simply
Think of non-functional requirements as the rules for how a car should feel and behave, like being comfortable, safe, and fuel-efficient, instead of just having four wheels and an engine. They are about the experience and quality, not just the basic functions.
📅 How Can it be used?
Non-functional requirements help teams define performance, security, and reliability standards for a software project.
🗺️ Real World Examples
An online banking app must load account information within three seconds and keep user data encrypted. These requirements ensure the app is fast and secure, which are non-functional aspects.
A hospital management system must be available 99.9 percent of the time, even during updates, so medical staff can always access patient information quickly and reliably.
✅ FAQ
What is the difference between functional and non-functional requirements?
Functional requirements describe what a system should do, like the features and tasks it must perform. Non-functional requirements focus on how the system performs these tasks, such as how fast it responds, how reliable it is, and how easy it is to use. They help shape the overall experience people have with the system.
Why are non-functional requirements important in software development?
Non-functional requirements are important because they ensure a system is not only useful but also enjoyable and dependable to use. They cover aspects like security, performance, and accessibility, which can make the difference between a frustrating experience and one that users trust and appreciate.
Can you give examples of non-functional requirements?
Examples of non-functional requirements include how quickly a website loads, how often a system is available without downtime, how secure user data is, and how easy the software is for people to learn. These details help make sure the system works well for everyone.
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🔗 External Reference Links
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