H19-105-V2.0: HCSA-Sales-Data Center Facility V2.0

The five understandings framework for SQA personnel centers on core technical and quality-related knowledge domains — the quality system, safety standards applicable to electricity and energy storage, and the service/product business — which the SQA must master to perform supplier evaluation and quality control effectively. Awareness of competitors' quality levels in the energy storage industry is a form of market/competitive intelligence rather than a required theoretical knowledge area under this framework, so it is excluded from the five understandings.