Data validation is the process of verifying and ensuring the quality of data collected in a system, database, or application. The purpose of data validation is to ensure that data is correct, completely entered, and meets specified quality criteria. During validation, data is compared against established rules, standards, or patterns, and any discrepancies or errors are identified and corrected. This process is crucial for eliminating all errors, maintaining data accuracy, and ensuring that information used in analyses, reports, and supporting informed decision-making is reliable and credible. Data validation is essential in data management and can be automated to effectively ensure data quality.
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