description: > Apache Polygene™ is a community based effort exploring Composite Oriented Programming for domain centric application development. This includes evolved concepts from Aspect Oriented Programming, Dependency Injection and Domain Driven Design. Composite Oriented Programming allows developers to work with 'fragments', smaller than classes, and 'compose' fragments into larger 'composites' which acts like the regular objects. Apache Polygene™ also tackles the enforcement of application composition, i.e. composites are declared in modules, modules are contained in layers and access between layers are controlled/enforced. author: The Apache Polygene™ Project keywords: cop, composite oriented programming, ddd, domain driven design, composite, mixin, fragment, constraint, concern, side-effect, aop, aspect oriented programming, application, layer, module, structure, java, library, toolkit, framework