From the Euopeana Web Site:
The European Library Standards handbook serves as a handbook for libraries providing data to The European Library and other services such as Europeana. The document clarifies the advantages of outsourcing specific data-provision tasks to an aggregator and provides a complete description of the process.
From a LIBER Summary
The handbook first addresses the role of content providers in the project and the benefits of participating. It then examines the process of submitting data and the technical, organisational and financial requirements for the submission of data. Finally, the handbook outlines high‐level legal aspects and lists a number of definitions and resources, which are useful for the overall development and sustainability of content providers.
This handbook aims to provide sufficient information to libraries which wish to submit data to The European Library and others services such as Europeana, and also to become sustainable partners of the service.