NF E04-007

Geometrical product specifications (GPS) - Discrete modal decomposition - Analysis method

Le présent document décrit une méthode d'analyse des écarts locaux de forme applicable à des éléments intégraux de type cylindre, plan, droite, cercle, cône, sphère. Cette méthode est construite à partir d'une Décomposition Modale Discrète (DMD). La décomposition modale discrète propose une manière alternative de caractériser et visualiser un élément géométrique pour vérifier la qualité géométrique des pièces et des assemblages. Le présent document est une norme GPS générale, dont la situation dans la matrice GPS est indiquée en Annexe F.

To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

The Redline + service - standards comparator allows you to easily and simply identify major changes between the current standard and its last canceled version.

At a glance, you will be able to identify the additions, deletions or modifications to a text, table, figure and formula.


The Redlines + service is offered to you on the collection of French standards in force, in French language and in HTML and PDF format.

For an overview of the service, click on View a standard in redline format

- The UPSELL service allows you to easily update one of your standards.
- With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
- Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ