Unidom (UNIfied Domain Object Model) is a series of domain model engines. The Article Number domain model engine includes EAN-13, EAN-8, and IMEI models. Unidom (统一领域对象模型)是一系列的领域模型引擎。物品编码领域模型引擎包括EAN-13、EAN-8和IMEI的模型。