3.1.4.3 Request to Retrieve Resources

When a higher layer needs to retrieve resources from a data service, it MUST cause the client to send the appropriate Retrieve Request Type (section 2.2.7.2), as specified in the remainder of this section.

The higher layer MUST provide the URI, which the higher layer obtained from a prior data service response or other means that will be specified in all requests sent by the client. As defined by the Retrieve Request Types (section 2.2.7.2), the URI MUST identify the data service resources to be retrieved. Such a URI MAY include Query Options (section 2.2.3.6) which further define the resources to be retrieved.