22.1.10 REST-service or restservice
module can provide (or export) REST-services
to expose its functionality, and depend on (or import) REST-services to use
external functionality. A REST-service is a service through which you
communicate using the REST uniform interface. On a Java-technical level, a
REST-service is an org.restlet.Restlet. Next to REST-services, a module can also
use Java-services to expose or use functionality.