The VDA 6.3 is a non statistical process capability study for Production processes, product and productionprocess development, sub-supplier management and customer service processes. In addition you can use it as an potential analysis for new suppliers.
In production you may compare it with AIAG CQI 9, 10 and 11 for special manufacturing processes but its not limited to those technologies.
Its focused on a risk evaluation based on the knowledege database with customer focus.
QM-Systems in accordance with ISO9001 or ISO/TS 16949 create a framework or set of rules to fullfill requirements from Standards and customers, the VDA 6.3 is focused on effectiveness and efficiency of processes.
The VDA 6.3 refers to a lot of other VDA standards, such as MLA(RGA),PPA,
FMEA
VDA is the german assossiation of car industry who create and provide standards for the car industry since 1946. Its compareble with AIAG