Ways of validating data

Sending data is not enough — we also need to make sure that the data users fill out in forms is in the correct format we need to process it successfully, and that it won't break our applications.We also want to help our users to fill out our forms correctly and don't get frustrated when trying to use our apps.Data validation is a series of documented tests of the data with the goal of ensuring the quality and integrity of the data.More specifically, validation is usually concerned with checking four of the eight characteristics of good clinical data – these characteristics are from the first guidance and the first other reference listed below.Note that the kses system can be resource-intensive, and should therefore not be run as an output sanitization filter directly, but as a filter to data after it has been input and processed, before it is saved in the database.Word Press runs kses on the pre_comment_content filter, for example, to filter the HTML before saving the comment. This function does not encode characters as HTML entities: use it when storing a URL or in other cases where you need the non-encoded URL.

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Form validation can be implemented in a number of different ways.Disambiguation: Clinical data validation means checking clinical data for correctness and completeness.

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