NISO has released Open Discovery Initiative: Promoting Transparency in Discovery.
Here's an excerpt:
Based on the input from a survey done early in the project (see 2.7), the ODI group agreed to develop recommended practices in the following areas:
Technical recommendations for data format and data transfer, including method of delivery and ongoing updates.
- Recommendations for the communication (automated or through reporting) of libraries' rights to distribute or display specific content (e.g., restricted to subscribers versus open to all users). These recommendations are to include technical specifications on how data will be exchanged and procedural specifications regarding update frequency and other logistical details.
- Clear descriptors regarding the level of indexing performed for each item or collection of content and the level of availability of the content.
- Definition of fair linking from discovery service to the published content.
- Determination of what usage statistics should be collected, for whom, and how these data should
- be disseminated.