•Interoperation
–Technical (e.g., hardware, software)
–Data and metadata (e.g., formats, protocols)
–People (e.g., language, culture)
–Institutions (e.g., consortia)
•Discovery and Use
–Indexing and representation
–Retrieval algorithms (e.g., multiple sources of evidence)
–Interactive interfaces (e.g., agile views,
visualizations)