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Chapter 9. Designing Forms for Efficient... > Using Controls to Limit Data-Entry C...

Using Controls to Limit Data-Entry Choices

Data entry always trips over two unfortunate facts of life: Humans are fallible creatures and typing is an error-prone activity. Expert data-entry operators can't achieve 100% accuracy (although some come remarkably close), and the rest of us can only hope for the best. In short, if your form relies on other people (or yourself, for that matter) typing in field values, it's death-and-taxes certain that your table will end up with errors.

It stands to reason, then, that you can greatly reduce the number of errors by greatly reducing the amount of typing. The best way to do that is by taking advantage of controls to generate field values automatically. Here are some examples:


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