EMF Facet is a solution to extend existing Ecore metamodels without having to modify them.

The idea is to provide non-intrusive mechanisms to add new features (types, attributes, operations and references) to a metamodel and to customize the existing features by adding extra properties (icons, label, etc.)

These mechanisms are based on a query abstraction framework to be able to use all the kind of queries independently of their implementation language (Java, OCL, ATL, etc.)

Note that new components proposed by external contributors would also be integrated at some point by the EMF Facet team if relevant within the context of the project.

 Each release will include: An update site including the plug-ins, the sources and a documentation plug-ins An archive of the update site EMF Facet 0.1 synchronizes its builds according to the Indigo release schedule. (API Freeze) (Feature Freeze) EMF Facet runs under a standard Eclipse Modeling platform, including EMF (for model handling). Its current version is developed with and for Eclipse Indigo . The JVM 1.5 or higher is required. Most of the EMF Facet components are currently internationalized but the basically used language is English-US. As it is the first official project release to be planned, there are no such compatibility issues. The first objective of the EMF Facet project is to provide a framework dedicated to the Ecore metamodel extension without having to modify the metaclasses. The idea is to provide a non-intrusive mechanism to add new features (types, attributes, operations and references) to a metamodel. The second objective of the EMF Facet project is to provide a solution to be able to customize the metaclasses, attributes and references. This is usefull to customize the graphical representation of the models. The metamodel extension and metamodel customization mechanisms are based on a query abstraction framework to be able to use all the kind of queries independently of their implementation language (Java, OCL, ATL, etc.) EMF Facet aims to provide a set of basic customizable widgets. Those widgets are dedicated to be used by the implementations of model editors which want to use the extension and customization mechanisms. EMF Facet provides no support and no testing on 4.1. Java is a trademark or a registered trademark of Sun Microsystems, Inc. All other products or company names are mentioned for identification purposes only, and may be trademarks or service marks of their respective owners.