| http://www.w3.org/ns/prov#value | - This inherent asynchronousness allows the service implementation to employ a variety of long-running techniques to execute the service, such as calls to a remote web service, cross-domain postMessage, HTML5 web workers, etc.+In Orion, '''all service calls through the service registry are ''asynchronous''''' and return a [http://wiki.commonjs.org/wiki/Promises/A Promise] object.
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