CIRP Encyclopedia of Production Engineering

2014 Edition
| Editors: The International Academy for Production Engineering, Luc Laperrière, Gunther Reinhart

Requirement Specification

  • Eric Lutters
Reference work entry



In the (mechanical) design process, the requirement specification is a formal registration of the conditions that are imposed on a new or altered product design, both preceding as well as during the corresponding product development cycle.

Theory and Application

In product development cycles, stakeholders constantly deliberate about alternative solutions to design problems. This observation stresses the importance of decision-making processes for the overall effectiveness and efficiency. Requirement specifications serve as a reference for judging the available decision alternatives. As such, they have a large impact on the course of development cycles.

In engineering, a requirement is a singular documented need of what a particular product or service should be or perform. It is most commonly used in a formal sense in systems engineering, software engineering, or enterprise engineering. It...

This is a preview of subscription content, log in to check access.


  1. Gottesdiener E (2009) The software requirements memory jogger: a desktop guide to help business and technical teams develop and manage requirements. Addison-Wesley, BostonGoogle Scholar
  2. Lutters D, Ten Klooster R (2008) Functional requirement specification in the packaging development chain. CIRP Ann Manuf Technol 57(1):145–148CrossRefGoogle Scholar
  3. Miedema J, van der Voort MC, Lutters D, van Houten FJAM (2007) Synergy of technical specifications, functional specifications and scenarios in requirements specifications. In: Krause F-L (ed) The future of product development: proceedings of the 17th CIRP design conference. Springer, Berlin, pp 235–245CrossRefGoogle Scholar

Copyright information

© CIRP 2014

Authors and Affiliations

  1. 1.Faculty of Engineering Technology, Laboratory of Design, Production and ManagementUniversity of TwenteEnschedeThe Netherlands