title: Osgi bundles and their relation with packages
body: <p>For an application written using OSGi specifications</p>
  <p>A service is a java object that represents a feature, recording a voice call for example
  Every service has a number of packages associated with it, for example, service interface, service implementation, and slick.</p>
  <p>I can't get the relation between the above and OSGi bundles, as bundles contain services does that mean they contain the service packages or something else</p>