Open ADHL (What Others Have Borrowed) is a service that returns other titles, which lenders of a given title also have borrowed. The other titles are sorted after frequency. The service is based on data from a number of libraries.
How the service is used:
The service is called with identification of a given title.
Supported communication methods are SOAP, HTTP POST (XML-requests) and HTTP GET (URL-requests). Supported output formats are SOAP, XML, JSON and PHP.
The service has one operation: adhl. Refer to the WSDL/XSD for further documentation.
Web service: http://openadhl.addi.dk
The web service is published under the GPLv3 License.