WCF.Validation.Engine (nuget): The "WCF Validation Engine" is a lightweight extensible library to support validation in WCF. It's implementation is strongly based on ASP.NET MVC Source code , that means if you has already familiar with ModelMetatadata, ModelMetadataProvider, ModelValidatorProvider, ModelValidator, you will find it works the same way.
Keywords: WCF|Validation|DataAnnotation