As the name suggests Data Validation is the process of validating data. This step mainly has two processes involved in it. These are Data Screening and Data Verification.
- Data Screening: Different kinds of algorithms are used in this step to screen the entire data to find out any inaccurate values.
- Data Verification: Each and every suspected value is evaluated on various use-cases, and then a final decision is taken on whether the value has to be included in the data or not.