ISO 9000 addresses to which the certificate refers. An ISO 9001 certificate is not a once-and-for-all award but must be renewed at regular intervals recommended by the certification body, usually once every three years. There are no grades of competence within ISO 9001: either a company is certified (meaning that it is committed to the method and model of quality management described in the standard) or it is not. In this respect, ISO 9001 certification contrasts with measurement-based quality systems. The ISO 9000 standard is continually being revised by standing technical committees and advisory groups, who receive feedback from those professionals who
Data quality also scientific works using synthetic measure for assessing quality of Wikipedia articles in different languages. Methods for assessing data quality in Wikidata, DBpedia and other LOD sources differ. The Electronic Commerce Code Management Association (ECCMA), is a member based, international not-for-profit association committed to improving data quality through the implementation of international standards. ECCMA is the current project leader for the development of ISO 8000 and ISO 22745, which are the international standards for data quality and the exchange of material and service master data. ECCMA provides a platform for collaboration amongst subject experts on data quality and data governance