Ember computed property-based validations. An EmberJS validation framework that is completely and utterly computed property based. No observers were used nor harmed while developing and testing this addon. Lazily computed validations. Ruby on rails inspired validators. Support for Ember Data Models, Objects, Components, Services, etc. Support for nested models and objects. Synchronous and asynchronous support. Easily integrated with Ember Data's DS.Errors. No observers. Seriously... there...