See:
Description

EMF Compare

org.eclipse.emf.compare	This package contains EMF Compare's core plug-in classes.
org.eclipse.emf.compare.util	This package contains utility classes used throughout EMF Compare.

Other Packages

org.eclipse.emf.compare.diff	This packages backs up EMF Compare's differencing functionality.
org.eclipse.emf.compare.diff.engine	Provides a generic diff engine.
org.eclipse.emf.compare.diff.engine.check
org.eclipse.emf.compare.diff.merge	Provides merge services for models.
org.eclipse.emf.compare.diff.merge.service	Provides merging service for EMF Compare.
org.eclipse.emf.compare.diff.metamodel
org.eclipse.emf.compare.diff.metamodel.impl
org.eclipse.emf.compare.diff.metamodel.util
org.eclipse.emf.compare.diff.provider
org.eclipse.emf.compare.diff.service	Provides differencing service for models.
org.eclipse.emf.compare.epatch
org.eclipse.emf.compare.epatch.applier
org.eclipse.emf.compare.epatch.diff
org.eclipse.emf.compare.epatch.recorder
org.eclipse.emf.compare.epatch.util
org.eclipse.emf.compare.match	This packages backs up EMF Compare's matching functionality.
org.eclipse.emf.compare.match.engine	Provides a generic match engine.
org.eclipse.emf.compare.match.filter
org.eclipse.emf.compare.match.metamodel
org.eclipse.emf.compare.match.metamodel.impl
org.eclipse.emf.compare.match.metamodel.provider
org.eclipse.emf.compare.match.metamodel.util
org.eclipse.emf.compare.match.service	Provides matching service for models.
org.eclipse.emf.compare.match.statistic	This package provides the logic behind EMF Compare's matching process.
org.eclipse.emf.compare.team.subversive
org.eclipse.emf.compare.ui	This package provides the GUI components used to display EMF Compare's comparison results.
org.eclipse.emf.compare.ui.editor	This package provides the editor that can be used on a comparison result exported as an emfdiff file to open EMF Compare's GUI without running the whole comparison process anew.
org.eclipse.emf.compare.ui.export	Provides the API that can be used in order to add new export actions to EMF Compare's GUI.
org.eclipse.emf.compare.ui.team
org.eclipse.emf.compare.ui.util	Provides utility classes used by EMF Compare's GUI.
org.eclipse.emf.compare.ui.viewer	This package provides the graphical components used to extend org.eclipse.compare viewers to provide model specific UI.
org.eclipse.emf.compare.ui.viewer.content	Provides EMF Compare's specific implementation of a ContentMergeViewer.
org.eclipse.emf.compare.ui.viewer.content.part	Provides the graphical components of the ModelContentMergeViewer.
org.eclipse.emf.compare.ui.viewer.content.part.diff	Provides the tab folder displaying the model tree and the associated differences markers.
org.eclipse.emf.compare.ui.viewer.content.part.property	Provides the tab folder displaying the model elements' properties and their associated differences markers.
org.eclipse.emf.compare.ui.viewer.structure	Provides the TreeViewer displaying the structural view of the model differences.