![[8.5.5.7 or later]](../images/ng_v8557.gif)
Developing OSGi subsystem projects
An OSGi subsystem provides business logic and is a collection of resources that includes bundles, fragments, and other subsystems. The type of OSGi subsystem determines the share policy for the contained resources.
About this task
Important: Applicable to Liberty, Liberty Core
OSGi subsystems projects are similar to Apache Aries Applications, or EBA files. For more information, see the Enterprise OSGi Alliance Specifications for Release 5 or later.