1. Data Integrity: Ensure data integrity, that is, ensure the accuracy, consistency and completeness of data. This includes ensuring the reliability of the data source, the accuracy of data collection and the stability of data storage.
2, data availability: to ensure that the data can be timely and accurate by the people or systems that need to access and use. This includes ensuring the reliability, availability, accessibility and usability of data.
3, data confidentiality: to ensure the confidentiality of the data, that is, to ensure that the data is accessed and used only by authorized persons or systems. This includes ensuring the privacy, security and confidentiality of data.
4, data traceability: to ensure the traceability of data use and modification, that is, to ensure that the source, use and modification of data can be tracked and recorded. This includes ensuring data traceability, auditability and traceability.