NF EN ISO 19157

ISO 19113:2002 establishes the principles for describing the quality of geographic data and specifies components for reporting quality information. It also provides an approach to organizing information about data quality. ISO 19113:2002 is applicable to data producers providing quality information to describe and assess how well a dataset meets its mapping of the universe of discourse as specified in the product specification, formal or implied, and to data users attempting to determine whether or not specific geographic data is of sufficient quality for their particular application. This International Standard should be considered by organizations involved in data acquisition and purchase, in such a way that it makes it possible to fulfil the intentions of the product specification. It can additionally be used for defining application schemas and describing quality requirements. As well as being applicable to digital geographic data, the principles of ISO 19113:2002 can be extended to identify, collect and report the quality information for a geographic dataset, its principles can be extended and used to identify, collect and report quality information for a dataset series or smaller groupings of data that are a subset of a dataset. Although ISO 19113:2002 is applicable to digital geographic data, its principles can be extended to many other forms of geographic data such as maps, charts and textual documents. ISO 19113:2002 does not attempt to define a minimum acceptable level of quality for geographic data.

Le présent document définit des procédures pour déterminer et évaluer la qualité qui est applicable aux fichiers de données géographiques, en cohérence avec les principes de qualité des données définies dans l'ISO 19113.

This document establishes the principles for describing the quality of geographic data. It: —    defines a well-considered system of components for describing data quality; —    defines the process for defining additional, domain-specific components for describing data quality; —    specifies components and the content structure of data quality measures; —    describes general procedures for evaluating the quality of geographic data; —    establishes principles for reporting data quality. This document is applicable to data producers providing quality information to describe and assess how well a dataset conforms to its product specification and to data users attempting to determine whether or not specific geographic data are of sufficient quality for their particular application. This document does not attempt to define minimum acceptable levels of quality for geographic data. Such information is usually present as a requirement in a data product specification, defined in accordance with ISO 19131, for example.