NBN ISO 23952:2021

This clause describes the general content and structure of the entire QIF information model. It
describes the highest level data structures of QIF, that are expanded in Clauses 6 through 12 using
data dictionaries and XML schema files. All QIF XML schema files can be found at
www.qifstandards.org.
This clause also describes practices for forming QIF instance files, called “documents,” that support
quality workflow scenarios. Its focus is to show how the QIF information model, and data formed into
XML instance files, support the entire scope of model based definition manufacturing quality
workflow. It describes how the information model is partitioned among the XML schema files and
contains all terms used in the subject area clauses.
The purpose of this clause is to orient potential users of QIF to the organization of the information
model to make their study of the details more rewarding and efficient. It should also help solution
providers and users to evaluate QIF for their uses, without needing to go to the lowest technical
details of the XML schemas. The information model narrative focuses on the approach to modeling
the core data structures of QIF, which model the content of ASME GD&T and ISO GPS, and the
plans and results data elements defined in Dimensional Measuring Interface Standards (DMSI) ISO
22093 and ANSI/DMSC DMIS 5.3. The material on XML practices describes consistent design
practices to be used by QIF working groups who will be designing new schemas. It should also help
data processing experts to write software that writes and reads manufacturing quality data using the
XML schemas.