Search Service API
The Digital Discovery System Search Service (DDSWS) is a search and retrieval service API for items that reside in a digital repository, and is available from the Digital Discovery System (DDS) and the NSDL Collection System (NCS). Service requests are expressed as HTTP argument/value pairs and responses may be returned as XML or JSON.
The service is illustrated and described formally here:
To access this DDS repository using the service, use the following Base URL: