Data: It’s the back bone of the company.
Data cleansing, also known as data scrubbing, is the process of ensuring that a set of data is correct and accurate. In this process, records are checked for accuracy and consistency, and they are either updated/corrected or deleted as necessary. This can occur within a single set of records or between multiple sets of data that need to be merged or that will work together.
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In more complex operations, data cleansing can be performed by computer programs. These programs can check the data with a variety of rules and procedures decided upon by the user. A program could be set to delete all records that have not been updated within the previous five years, correct any misspelled words and delete any duplicate copies. A more complex program might be able to fill in a missing city based on a correct postal code or change the prices of all items in a database to another type of currency.
At its most simple form, data cleansing involves a person or persons reading through a set of records and verifying their accuracy. Typos and spelling errors are corrected, mislabeled data is properly labeled and filed, and incomplete or missing entries are completed. These operations often purge out-of-date or unrecoverable records so that they do not take up space and cause inefficient operations.