A main goal of any statistical organization is the dissemination of high-quality information and this is particularly true in Eurostat.
Quality implies that the data available to users have the ability to satisfy their needs and requirements concerning statistical information and is defined in a multidimensional way involving six criteria: Relevance, Accuracy, Timeliness and punctuality, Accessibility and clarity, Comparability and Coherence.
In short, it is designed to check plausibility of the data and to correct possible errors and is one of the most complex operations in the life cycle of statistical data, including steps and procedures of two main categories: checks (or edits) and transformations (or imputations).
Verification can be performed in a few ways: Think about when you choose a new password, you have to type it in twice.This lets the computer check if you have typed it exactly the same both times and not made a mistake.Data from the client should never be trusted for the client has every possibility to tamper with the data.In many cases, Encoding has the potential to defuse attacks that rely on lack of input validation.To try and reduce the amount of input errors, a system designer can build in validation and verification checks into the software that the data is entered into.
It is important to understand that these checks cannot eliminate all mistakes, they just try and ensure that the data is as accurate as is reasonably possible for the purpose it is being collected for.It verifies that the first version is correct by matching it against the second version.Whilst this can help to identify many mistakes, it is not ideal for large amounts of data. It can help pick up errors where data has been entered incorrectly or transposed.- this method of validation is used to limit entries to those that are members of a list of allowed entries.The choices may appear in a drop-down list to reduce transcription errors or be in the form of a list of acceptable entries that the input is checked against. An extra 'check digit' is calculated from the numbers to be entered and added to the end.To ensure that the application is robust against all forms of input data, whether obtained from the user, infrastructure, external entities or database systems. This weakness leads to almost all of the major vulnerabilities in applications, such as Interpreter Injection, locale/Unicode attacks, file system attacks and buffer overflows.