QA-Quality Assurance P-Product or Process S-Supplier D-Development T-Comprehensive
QC-Quality Control I-Incoming IP-Process O-Shipping F- Finished product or failure S- supplier P- product or process
QE-quality engineer S-supplier
QM-quality management
Most of the above abbreviations are It is a common name for each company, and some companies have their own names, which is unique.
For your reference.