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Database: 365,228(8 Aug 2026)

Functional and non-functional requirements

Functional and non-functional requirements, Total:64 items.

The international standard classification for "Functional and non-functional requirements" includes: IT applications in banking , Other equipment related to power transmission and distribution networks .

The Chinese standard classification for "Functional and non-functional requirements" includes: Finance and Insurance , .


General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

  • GB/T 40473.3-2021 Banking application system—Nonfunctional requirement—Part 3: Performance efficiency
  • GB/T 40473.5-2021 Banking application system—Nonfunctional requirement—Part 5: Usability
  • GB/T 40473.6-2021 Banking application system—Nonfunctional requirement—Part 6: Reliability
  • GB/T 35681-2017 Function specification of power demand response system
  • GB/T 40473.9-2021 Banking application system—Nonfunctional requirement—Part 9: Portability
  • GB/T 40473.4-2021 Banking application system—Nonfunctional requirement—Part 4: Compatibility
  • GB/T 40473.1-2021 Banking application system—Nonfunctional requirement—Part 1: Framework for description
  • GB/T 40473.8-2021 Banking application system—Nonfunctional requirement—Part 8: Maintainability
  • GB/T 40473.7-2021 Banking application system—Nonfunctional requirement—Part 7: Security
  • GB/T 40473.2-2021 Banking application system—Nonfunctional requirement—Part 2: Functional suitability

Professional Standard - Energy and Power Planning

  • DL/T 1731-2017 Specification for non functional requirements for information systems in power industry

Aeronautical Radio Inc.

International Telecommunication Union (ITU)

German Institute for Standardization

  • DIN EN 16271 E:2011-04 Draft Document - Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product; German version...
  • DIN EN 16271:2013-03 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product; German version EN 16271:2012
  • DIN EN 16271 E:2011 Draft Document - Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product; German version...

Ente Nazionale Italiano di Unificazione

  • UNI EN 16271:2013 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product
  • UNI CEN/TS 18170:2025 Functional requirements for the electronic archiving services

European Telecommunications Standards Institute (ETSI)

Association Francaise de Normalisation

  • CEN/TS 18170:2025 Functional requirements for the electronic archiving services
  • NF X50-151*NF EN 16271:2013 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product
  • NF D11-118:2007 Wall-hung urinals - Functional requirements and test methods.
  • NF EN 16271:2013 Value management - Functional expression of the need and functional specifications - Requirements for the expression and validation of the need to be satisfied in the process of acquiring or obtaining a product

British Standards Institution (BSI)

  • BS PD CEN/TS 18170:2025 Functional requirements for the electronic archiving services
  • 11/30242719 DC BS EN 16271. Value management. Functional expression of the need and functional performance specification. Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product
  • BS EN 16271:2012 Value management. Functional expression of the need and functional performance specification. Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product

Swedish Institute for Standards

  • SS-EN 16271:2013 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product

Danish Standards Foundation

  • DANSK DS/EN 16271:2013 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product
  • DS/EN 17210:2021 Accessibility and usability of the built environment – Functional requirements
  • DS/EN 16271:2013 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product

Standards Norway

  • NS-EN 16271:2012 Value management — Functional expression of the need and functional performance specification — Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product

Polski Komitet Normalizacyjny (PKN)

Spanish Association for Standardization (UNE)

  • UNE-EN 16271:2013 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product

Lithuanian Standards Office

  • LST EN 16271-2013 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product

American Water Works Association (AWWA)

  • AWWA CSC59663 Software Selection: Features and Functions Are Nice, but What about Business Needs?

Instrument Society of America (ISA)

  • ISA 5.06.01-2007 Functional Requirements Documentation for Control Software Applications

European Committee for Standardization (CEN)

  • EN 16271:2012 Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product