The approach to web service-based Release deliveries is based on URLs that are set at the discretion of the Release Creator who publishes the web service to Release Distributors that are its business partners to share its Releases with them.

While it can be assumed that many URLs follow a common syntax (the URL to access a NewReleaseMessage may, for instance, follow the syntax http://base_url.com/ws_endpoint/releaseid=xxxx), there is no compulsion to use this approach. Similarly it is not compulsory that all URLs from one Release Creator follow a common syntax.

All a Release Creator needs to do, is to publish the URL for the GET ERN Feed call to its Release Distributor(s) and make sure that the URLs placed in the responses to web service calls are (i) valid and (ii) active.

Wherever this standard only mentions the HTTP protocol, it is to be understood that HTTPS communications are also allowed.