Abstract: A method for generating validation logic executable in a target application in a target platform. The method creates a metarule, creates a target domain attribute, creates a mapping of the metarule to the target domain attribute, and creates target domain attribute validation logic executable in a target application in a target platform based on the metarule, the mapping of the metarule to the target domain attribute, and the target language of the target platform. The method further submits test data, including a value of a target domain attribute, to the target domain attribute validation logic, and produces an actual validation result based on the submitted test data.