Welcome to Apache Isis Apache Isis is a full-stack open source application development framework, designed to let you rapidly develop domain-driven business enterprise applications. The framework is designed around two patterns: * the first is the naked objects pattern, whereby the framework automatically generates an object-oriented user interface (OOUI) for your domain objects. If required, this OOUI can then be customized. * the second is the hexagonal architecture. This means it allows the same domain model to be run with different viewers, either as a desktop app or as a webapp. Equally, you can choose which object store to use in order to persist your domain objects. The diagram below shows the hexagonal architecture as it is implemented by Apache Isis.
Domain Driven Design (DDD) is about mapping business domain concepts into software artifacts. Most of the writings and articles on this topic have been based on Eric Evans' book "Domain Driven Design", covering the domain modeling and design aspects mainly from a conceptual and design stand-point. These writings discuss the main elements of DDD such as Entity, Value Object, Service etc or they talk about concepts like Ubiquitous Language, Bounded Context and Anti-Corruption Layer.
The short answer is that Qi4j is a framework for domain centric application development, including evolved concepts from AOP, DI and DDD.
Qi4j is an implementation of Composite Oriented Programming, using the standard Java 5 platform, without the use of any pre-processors or new language elements. Everything you know from Java 5 still applies and you can leverage both your experience and toolkits to become more productive with Composite Oriented Programming today.
The most complicated aspect of large software projects is not the implementation, it is the real world domain that the software serves. Domain Driven Design is a vision and approach for dealing with highly complex domains that is based on making the domai