From a DataCite Blog Post:
Intended for DataCite members and their clients, the document looks at DataCite member and client responsibilities, as well as best practices.
DataCite members may consult the Principles to learn about their responsibilities regarding contracts, costs and fee schedules, and prefixes. DataCite clients can use the document to understand their responsibility to ensure data persistence and to provide metadata. As well, they can learn about best practices such as landing pages and DOI syntax.
Direct to DataCite Business Models Principles (Version 1.0)
7 pages; PDF.