E3 contains tools that allow transforming any object or set of objects of an application into a user Library. Libraries can be composed of frequently used objects and subsequently reused in another application.

E3 provides two types of user Libraries: the Gallery, a Library of vector graphical symbols, which can be freely used in applications, and a user Library tool called ElipseX. Using Libraries in E3 is highly recommended most of the time, due to the productivity gains they bring to applications. Some advantages of ElipseX are the following:

•Reusing source code

•Reducing tests during development

•Creating default interfaces for developed objects

•Reducing development time of new projects

•Protecting project's content

•Ranking objects

Libraries in Organizer