EDC Rules – When should they run?

All EDC systems have some form of rules facility. The rules are typically designed to check data. If the check fails, then typically a query is produced.

Web based EDC systems typically run edit checks when a page is submitted.

Prior to the release of web based systems, it was typical to check the data as soon as it was entered – between fields.

With Web 2.0 technologies, it may prove possible to routinely run checks as soon as data is entered – prior to page submit.

So – a question – which approach is best?

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