According to the relationship analysis in the previous section, completeness cleaning cannot guarantee the data correctness, and thus abnormal data might still exist if it is placed at the end of the cleaning order.
For abnormal data correction, the data correctness can be improved without changing the measurement of data integrity indicators.
They proposed a protocol able to determine both the data correctness and locate possible errors.
Precautions are taken to guarantee data confidentiality.
Data correctness is the major concern of clinical researchers towards secondary use.
This policy guarantees data privacy while still allowing data sharing.
Data collection (i) maintains and provides storage guaranteeing data security.
However, the approach based on global information cannot guarantee the correctness of the updated information over the long path because of the network dynamics in high traffic scenarios.
All data were input twice and double checked using EPIDATA3.2 software to guarantee the correctness.
Of course, rationality is no guarantee of correctness.
