A-Z Popular Blog Requirements Search »
Related Guides

Related Topics
Community Requirements

Functional Requirements

19 Examples of Non-Functional Requirements

 , updated on
A non-functional requirement is an qualitative requirement for a product, service, system, process, document, location, infrastructure component or facility. Where functional requirements specify what something does, a non-functional requirement specifies its qualities. In some cases, non-functional requirements are intangible things that require human judgement such as sensory analysis to implement and test. The following are examples of non-functional requirements.


Customer requirements for a fireplace ask that it be modern, comfortable and distinctive.


A hospital's patient record system is required to have 99.99% availability.


A breakfast cereal specifies that raisins have an attractive appearance such that they aren't crushed or discolored.


A beverage company requires that a pineapple juice be produced from ripe fruit that have a sweet as opposed to sour or bitter taste.


An aircraft engine is required to have 100% reliability.


A mobile device is required to be as light as possible given its functionality and constraints such as unit cost.


A business unit requires that all pages on a website load in less than 2 seconds for 99% of customers considering their location, bandwidth and latency.


Initial requirements for a vehicle navigation system state that all menus be easy to tap.


A bicycle manufacturer requires that all designs be easily deconstructable such that hobbyists can do self repairs and reuse parts.

Human Factors

Job requirements state that applicants need to be "good with people."


High level marketing requirements specify that a new coffee product be highly visible on the shelves next to the product's primary competition.

Human Error

Requirements for a furniture product state that customer assembly instructions need to be mistake proof.


Requirements for anything software related typically state that it be secure according to industry best practices.

Design To The Edges

A design for a remote control unit for an air conditioner begins with the requirement that 99.99% of all customers find it easy to use regardless of their age, background or native language.


Architectural requirements for self-driving vehicle state that the software be designed according to a set of microservice principles.


A solar panel company requires that at end of life all components be reusable and recyclable with minimal processing and energy expenditure.


Requirements for an industrial robot state that monthly scheduled maintenance be less than 3 hours for the robot's first five years of service life.


Non-functional requirements outline everything that you need from a product, service, environment or experience beyond its basic functionality. This includes broad areas such as quality, performance and usability.
Overview: Non-Functional Requirements
Next read: Quality Requirements
More about requirements:
Community Requirements
Customer Requirement
Functional Requirements
Performance Requirements
Product Functions
Project Requirements
Service Requirements
Stakeholder Requirements
Technology Needs
If you enjoyed this page, please consider bookmarking Simplicable.

Technical Requirements

An overview of technical requirements with common examples.


The common types and formats of requirements.

Stakeholder Requirements

Common examples of stakeholder requirements.

Community Requirements

An overview of community requirements with examples.

Project Requirements

An extensive list of project requirements including functional and non-functional examples.

Business Analysis

A list of business analysis techniques and deliverables.

Business Quality

An overview of business quality with examples.

Words To Describe Analysis

A vocabulary for describing analysis.

Business Results

A list of common types of business result.

Team Analysis

An overview of team analysis with examples.

Business Planning

An overview of the different types of business planning.

Service Analysis

An overview of service analysis with examples.

Impact Analysis

An overview of impact analysis with examples.

Quality Analysis

An overview of quality analysis with examples.

Business Pain Points

An overview of business pain points with examples.

Business Context

An overview of business context with examples.

Operational Analysis

An overview of operational analysis with examples.
The most popular articles on Simplicable in the past day.

New Articles

Recent posts or updates on Simplicable.
Site Map