It is still valid to use the <tt>Jobs</tt> or <tt>Applications</tt>, however, this interface also knows how to invoke other kinds of service, and provides a uniform interface to cea, cone, siap, ssap services.<dl> <dt>Note:</dt><dd> As JES is no longer supported, and we no longer provide cea-style querying of cone and siap, maybe this interface should be retired?</dd></dl>