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- Accessibility
- Authoring
- Commenting/Reviewing/Annotating
- Discoverabllity
- Evaluating/Assessing
- Extensibility
- Grading/Ranking/Rating/Reviewing/Evaluating
- Grouping (People)
- Integration
- Messaging
- Reportability
- Rights/Permissions
- Scheduling
- Searchability
- Sharing
- Sustainability
- Tagability/Metadatability