--- title: What is the V-model? description: A project cannot succeed without a good project approach and accompanying SMART-formulated specifications. At Post & Dekker we often use the V model. image: https://blog.postendekker.nl/hubfs/images/blog/post%20en%20dekker_roadmap.png --- - - - [![Nederlands](https://blog.postendekker.nl/hubfs/PostenDekker-Jan2016-image/nl.png "Nederlands")](https://blog.postendekker.nl/) - [![English](https://blog.postendekker.nl/hubfs/PostenDekker-Jan2016-image/en.png "English")](https://blog.postendekker.nl/en/) - [![Nederlands](https://blog.postendekker.nl/hubfs/PostenDekker-Jan2016-image/nl.png "Nederlands")](http://www.postendekker.nl/) - [![English](https://blog.postendekker.nl/hubfs/PostenDekker-Jan2016-image/en.png "English")](http://www.postendekker.nl/en/) [![logo1.png](https://blog.postendekker.nl/hubfs/PostenDekker-Jan2016-image/logo1.png)](https://www.postendekker.nl/en/) - [Programs](https://www.postendekker.nl/en/programs/) - [Bridging the Gap](https://www.postendekker.nl/en/bridging-the-gap/) - [Bridging the Challenge](https://www.postendekker.nl/en/bridging-the-challenge/) - [Bridging the Future](https://www.postendekker.nl/en/bridging-the-future/) - [SmartOEM](https://www.postendekker.nl/en/smartoem/) - [References](https://www.postendekker.nl/en/references/) - [About Us](https://www.postendekker.nl/en/about-us/) - [Profile](https://www.postendekker.nl/en/about-us/) - [Mission & Vision](https://www.postendekker.nl/en/mission-vision/) - [Team](https://www.postendekker.nl/en/team/) - [Downloads](https://www.postendekker.nl/en/downloads/) - [Blog](https://blog.postendekker.nl/en) - [Contact](https://www.postendekker.nl/en/contact/) Subscribe ### Subscribe to Email Updates Select topic - [Modular design (11)](https://blog.postendekker.nl/en/topic/modular-design) - [System development (11)](https://blog.postendekker.nl/en/topic/system-development) - [Value Engineering (7)](https://blog.postendekker.nl/en/topic/value-engineering) - [Product roadmapping (5)](https://blog.postendekker.nl/en/topic/product-roadmapping) - [Manufacturing industry (3)](https://blog.postendekker.nl/en/topic/manufacturing-industry) - [Collaboration in product development (2)](https://blog.postendekker.nl/en/topic/collaboration-in-product-development) - [Smart customization (2)](https://blog.postendekker.nl/en/topic/smart-customization) - [Maakindustrie (1)](https://blog.postendekker.nl/en/topic/maakindustrie) - [Modulair ontwerpen (1)](https://blog.postendekker.nl/en/topic/modulair-ontwerpen) - [Post en Dekker (1)](https://blog.postendekker.nl/en/topic/post-en-dekker) - [conceptdevelopment (1)](https://blog.postendekker.nl/en/topic/conceptdevelopment) # Most recent article # What is the V-model? ![Nicoline Marselis](https://blog.postendekker.nl/hubfs/images/blog/auteurs/Nicoline%20Marselis.jpg) By [Nicoline Marselis](https://blog.postendekker.nl/en/author/nicoline-marcelis) on July 28, 2020 - - - - ![post en dekker_roadmap](https://blog.postendekker.nl/hs-fs/hubfs/images/blog/post%20en%20dekker_roadmap.png?width=700&name=post%20en%20dekker_roadmap.png) A project cannot succeed without a good project approach and accompanying SMART-formulated specifications. At Post & Dekker we often use the V model. In this blog we explain what the V model is. ## **What is the V-model?** The V-model is a structured project approach in which the attention is equally divided between project definition (and translation to technical design) and validation / verification of defined project requirements and needs. ## **From project definition to project test & validation** The V-model consists of the three major phases Project definition, Implementation and Project test & validation. There are several steps within these phases. On the left, the V starts with Project definition. In this phase, the requirements are mapped at different levels: the user specifications, technical specifications and module specifications. After these are clearly listed, work is done on the technical design / geometric design. At the bottom, in the middle, is the Implementation phase. In this phase, the design is worked out. Finally, on the right side of the V there is the Project test & validation phase. Each step in this phase, on the right, tests a phase on the left. Here, among other things, the modules are tested and acceptance tests are carried out, as are the user tests and maintenance. A pitfall when using the V model is that too much and / or not enough SMART (specific, measurable, acceptable, realistic, time-bound) is defined on the left. If that is the case, validation becomes difficult or even impossible. As a rule, anything defined on the left makes sense if it can be validated on the right. ## **Waterfall model** The V-model is an improved version of the Waterfall model. This model divides a development process into several phases, with development progressing smoothly to the end goal. Often this process consists of 6 phases, these are: definition & analysis, basic design, technical design / detail design, testing, integration and management and maintenance. In the Waterfall model, the phases follow each other, the next phase only starts when the present phase has been completed. A big difference is that, for example, you do not start testing until everything has been completed, but you can always immediately test and validate at the different levels. ## **Structure and working method** Post & Dekker often uses the V-model for System development and Configure-to-Order projects. It offers us a good structure and ensures an efficient and effective working method. Do you want to know more about our working method? Then download the white paper "Creating new business for OEM". [![Whitepaper Creating new business for OEM](https://no-cache.hubspot.com/cta/default/1768967/3c22cbc8-571a-4dcb-ac7c-027d64e66ad8.png)](https://cta-redirect.hubspot.com/cta/redirect/1768967/3c22cbc8-571a-4dcb-ac7c-027d64e66ad8) ![Nicoline Marselis](https://blog.postendekker.nl/hubfs/images/blog/auteurs/Nicoline%20Marselis.jpg) Written by [Nicoline Marselis](https://blog.postendekker.nl/en/author/nicoline-marcelis) ### Related articles [![Toolbox article: concept development - from nothing to something](https://blog.postendekker.nl/hubfs/images/blog/post-en-dekker.png)](https://blog.postendekker.nl/en/concept-development-from-nothing-to-something) ##### [Toolbox article: concept development - from nothing to something](https://blog.postendekker.nl/en/concept-development-from-nothing-to-something) In this blog we share our vision and working method with regard to concept study and development from our series of toolbox... ![Nicoline Marselis](https://blog.postendekker.nl/hubfs/images/blog/auteurs/Nicoline%20Marselis.jpg) By [Nicoline Marselis](https://blog.postendekker.nl/en/author/nicoline-marcelis) - 11 September 2019 [Read more](https://blog.postendekker.nl/en/concept-development-from-nothing-to-something) [![The product road map, the basis of integrally designing of product families](https://blog.postendekker.nl/hubfs/images/blog/Roadmap.png)](https://blog.postendekker.nl/en/the-product-road-map-the-basis-of-integrally-designing-of-product-families) ##### [The product road map, the basis of integrally designing of product families](https://blog.postendekker.nl/en/the-product-road-map-the-basis-of-integrally-designing-of-product-families) An integrally designed product family is optimally matched to market requirements, business processes and the supply chain. It... ![Eric-Jan Dekker](https://blog.postendekker.nl/hubfs/Eric-Jan%20Dekker%202.jpg) By [Eric-Jan Dekker](https://blog.postendekker.nl/en/author/eric-jan-dekker) - 28 February 2018 [Read more](https://blog.postendekker.nl/en/the-product-road-map-the-basis-of-integrally-designing-of-product-families) ### Contact Post en Dekker Grasweg 41A 1031 HW Amsterdam 020-468 08 39 [Contact](https://www.postendekker.nl/en/contact/) ### Follow us [![Twitter](https://blog.postendekker.nl/hs-fs/hubfs/PostenDekker-Jan2016-image/twitter.png?width=64&name=twitter.png "Twitter")](https://twitter.com/postendekker) [![LinkedIn](https://blog.postendekker.nl/hs-fs/hubfs/PostenDekker-Jan2016-image/linkedin.png?width=64&name=linkedin.png "LinkedIn") ![You_tube](https://blog.postendekker.nl/hs-fs/hubfs/You_tube.png?width=64&name=You_tube.png)](https://www.linkedin.com/company/ingenieursbureau-post-en-dekker/) ### Most recent blog articles