CushionTheBlow (구 BluemoonSoft)

Apache Avalon has closed.

Apache Avalon began in 1999 as the Java Apache Server Framework and in late 2002 separated from the Apache Jakarta Project to become its own ASF top level project. Apache Avalon provided Java software for component and container programming and pioneered the use of design patterns such as Inversion of Control (IoC) and Separation of Concerns (SoC).

Reference:
http://avalon.apache.org/closed.html

JBoss Application Server (or JBoss AS) is a free software / open source Java EE-based application server. Because it is Java-based, the JBoss application server is cross-platform, usable on any operating system that Java supports.

Reference:
http://en.wikipedia.org/wiki/Jboss

In n-tier architecture an application server is a server that hosts an API to expose Business Logic and Business Processes for use by other applications [1]. The term can refer to:

1. The Services that are made available by the server
2. The Computer Hardware on which the Services are deployed
3. The Software framework used to host the Services such as JBoss application server or Oracle Application Server

Reference:
http://en.wikipedia.org/wiki/Application_server

AndroMDA (pronounced "Andromeda") is an extensible generator framework that adheres to the Model Driven Architecture (MDA) paradigm. Models from UML tools will be transformed into deployable components for your favorite platform (J2EE, Spring, .NET). Unlike other MDA toolkits, AndroMDA comes with a host of ready-made cartridges that target today's development toolkits like Axis, jBPM, Struts, JSF, Spring and Hibernate. AndroMDA also contains a toolkit for building your own cartridges or customize existing ones - the meta cartridge. Using it, you can build a custom code generator using your favorite UML tool.

Reference:
http://galaxy.andromda.org/index.php?option=com_content&task=blogcategory&id=0&Itemid=42

Model-driven architecture (MDA) is a software design approach for the development of software systems. It provides a set of guidelines for the structuring of specifications, which are expressed as models. Model-driven architecture is a kind of domain engineering, and supports model-driven engineering of software systems. It was launched by the Object Management Group (OMG) in 2001.

Overview
The Model-Driven Architecture approach defines system functionality using a platform-independent model (PIM) using an appropriate domain-specific language.

Then, given a platform definition model (PDM) corresponding to CORBA, .NET, the Web, etc., the PIM is translated to one or more platform-specific models (PSMs) that computers can run.

The PSM may use different Domain Specific Languages, or a General Purpose Language like Java, C#, PHP, Python, etc. Automated tools generally perform this translation.

The OMG organization provides rough specifications rather than implementations, often as answers to Requests for Proposals (RFPs). Implementations come from private companies or open source groups.

MDA principles can also apply to other areas such as business process modeling where the PIM is translated to either automated or manual processes.

Reference:
http://en.wikipedia.org/wiki/Model-driven_architecture

Inversion of Control이라고 하면 직관적으로 이해가 되는가?

Inversion of Control은 때론 IoC라고도 표기되는데

이에 대한 혼란을 줄이기 위해 Dependency Injection이라고 표기하는 것을 권장한다.

그럼 Dependency Injection이란 무엇인가?

Dependency Injection에 대한 원문 설명을 빌리면,

a way of removing the dependency from the application class to the plugin implementation

이다.

다시 말해, 응용 클래스로부터 플러그인 구현에 대한 의존성을 제거하는 하나의 방법이다.

다른 방법으로, Service Locator라는 방법도 있다 :-)

Reference:
http://martinfowler.com/articles/injection.html