I am looking for a better and clean way to do validation in my domain entities.
Time ago I read a great article here at http://codeinsanity.com/archive/2008/12/02/a-framework-for-validation-and-business-rules.aspx
It is also referenced here:
DDD Using Specification pattern for Validation
The original article is not available anymore at the Web site. Does someone have a copy of the article or could recommend me similar approaches?