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This is a good article on Form validation in ColdFusion with an Object-Oriented approach.  Form validation is one of those tedious tasks that we, the web developers, have to deal with every day.  This article explains how to deal with basic data validation and business rules validation, how to keep these two separated so that we can move our data validation between applications and avoid the rewriting of this one over and over.

Check it out:

Object-Oriented Form Validation in ColdFusion — For Web developers, form validation is a basic task, and yet one that presents some interesting challenges. Even discounting security issues such as SQL injection attacks and cross-site scripting (XSS), form validation is a critical step in your error handling strategy.

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