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- Use - Core action in a use case from the user's view
- User Operation - Users view of a logical, single operation
- Repository Operation - Repositories view of a logical, single operation for our purposes as the result of one or more API calls
- Performance - The number of units of work that are accomplished during an operation
- Concurrency - The number and kinds of operations being performed at the same nominal time (as opposed to a single repetition of an operation)
- Unit of Work - A metric to be defined appropriate to the Fedora Repository.
- There may be more than one metric
- Working definitions:
- The amount in bytes of content and metadata for an operation, or per unit of time
- The number of operations per unit of time
- The time between when an operation is started and when it is completed
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