Clarify creation choreography for media entities, recommend stream properties

Add as a second paragraph to Protocol, section 11.2.3 Requesting the Media Stream of a Media Entity using $value, and after the second sentence to first paragraph of CSDL JSON/XML, section 6.4 Media Entity Type the following guidance Use a media entity if the out-of-band stream is the main topic of interest and the media entity is just structured additional information attached to the stream. Use a normal entity with one or more stream properties if the structured data of the entity is the main topic of interest and the stream data is just additional non-structured information attached to the structured data. Add green text to first paragraph of Protocol, section 11.4.7.1 Create a Media Entity A POST request to a media entity's entity set creates a new media entity. The request body MUST contain the media value (for example, the photograph) whose media type MUST be specified in a Content-Type header. The request body is always interpreted as the media value, even if it has the media type of an OData format supported by the service, such as application/json . It is not possible to set the structural properties of the media entity when creating the media entity.

https://www.oasis-open.org/committees/download.php/65433/odata-v4.01-wd06-part1-protocol-2019-06-07.docx https://www.oasis-open.org/committees/download.php/65434/odata-csdl-json-v4.01-wd05-2019-06-07.docx https://www.oasis-open.org/committees/download.php/65435/odata-csdl-xml-v4.01-wd06-2019-06-07.docx