functional requirements

USAGE SUMMARY

"functional requirements" is correct and usable in written English.
You can use it when referring to the requirements for a system or program to operate properly and efficiently. For example, "The development team outlined the functional requirements for the software upgrade."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

While functional requirements specify the functionalities to be implemented, non-functional requirements suggest decisions on the architectural model.

Complex & Intelligent Systems

The authors take the viewpoints of both component developers and component users, and their contributions encompass functional requirements such as correctness and functionality compliance as well as non-functional requirements like performance and robustness.

Springer

Esapa, C. T. et al. Functional requirements for fukutin-related protein in the Golgi apparatus.

Nature

It included producing aesthetically pleasing products that met the specific needs, cost, and functional requirements of the problem at hand.

The Guardian

First, an architecture is derived that addresses functional requirements only.

Journal of Systems and Software

The esthetic and functional requirements of the patients were fulfilled.

The Journal of Prosthetic Dentistry

Features are product functional requirements that are important to stakeholders.

Computer Languages, Systems & Structures

The alarmClockBehav model defines functional requirements for the clock system.

System Level Design with Rosetta

Functional requirements are modeled by employing motion codes.

Mechanism and Machine Theory

Human-verified similar examples from authoritative sources

Similar Expressions

2 human-written examples

RFPs incorporate both functional and non-functional requirements.

Materials Today: Proceedings

Systems analysts often maintain non-functional requirements incrementally.

Computer Standards & Interfaces

Expert writing Tips

Best practice

When documenting "functional requirements", use clear, concise language to avoid ambiguity. Ensure each requirement is testable and traceable back to a specific user need or business goal.

Common error

Avoid mixing up "functional requirements", which describe what a system does, with non-functional requirements, which describe how well it does it (e.g., performance, security). Keep these categories distinct for clarity.

Linguistic Context

The phrase "functional requirements" serves as a noun phrase, identifying specific functionalities a system or product must fulfill. As seen in Ludwig, it's used to delineate essential operations from non-essential ones.

Expression frequency: Common

Frequent in

Science

68%

News & Media

16%

Academia

16%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "functional requirements" refers to the features a system or product needs to perform. Grammatically correct and commonly used, the phrase is most prevalent in scientific, news, and academic contexts. Ludwig AI confirms its usability in formal writing. To ensure clarity, distinguish them from non-functional requirements, and document them precisely. Related phrases include "required functions" and "essential features", depending on the context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

required functions

A more direct and simple way of stating the necessary functions.

core functionalities

Highlights the central functions that a system must perform.

essential features

Focuses on the most important features that fulfill the requirements.

performance criteria

Focuses more specifically on measurable performance aspects of the requirements.

baseline requirements

Implies a minimum set of requirements that must be met.

system capabilities

Highlights what the system is capable of doing, rather than the specific requirements.

system imperatives

Suggests requirements that are critical and non-negotiable for the system.

design specifications

Refers to detailed specifications that guide the design process, encompassing more than just functionality.

operational needs

Emphasizes the needs from an operational perspective, which might include non-functional aspects.

technical prerequisites

Addresses the technical aspects that are needed to meet the requirements.

FAQs

How do I define "functional requirements" in software development?

In software development, "functional requirements" specify the tasks or services a system should perform. These are often documented in use cases, user stories, or requirements specifications to guide the development process.

What's the difference between "functional requirements" and non-functional requirements?

"Functional requirements" define what a system does, while non-functional requirements define how well it performs its functions. Non-functional requirements include aspects like performance, security, and usability.

Can you give examples of "functional requirements" in a mobile app?

Examples include user authentication, data storage, push notifications, and the ability to process payments. These define the app's core functionality.

What are some alternatives to using the phrase "functional requirements"?

Depending on the context, you might use phrases like "required functions", "essential features", or "system capabilities" to convey a similar meaning.