The particular object type resource
represents the properties for which property values are obtained from
an external data source. When the user creates a new item or modifies
an item of the particular object type, the EDS REST protocol uses
the particular object type resource to obtain data for the corresponding
class, item type, workflow step processors, or workflow in-basket
filters from the external data source.
The EDS REST protocol calls the POST method for resources
when an item is created or a property is modified. The service then
returns the required information in the response to the POST request.