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As of June 8th the following need to be implemented

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1. When adding metadata check if context already exists and create new if it doesnt
2. Ability to edit context
3. Ability edit metadata
4. Create GUI to manipulate this new metadata
5. Store extractor metadata (on top of context metadata)
   1. store external services and libraries used
6. Create example extractor using this new represenationrepresentation

Example json-ld document:

https://opensource.ncsa.illinois.edu/stash/projects/CATS/repos/clowder/browse/doc/src/json/metadata.js?at=refs%2Fheads%2Ffeature%2Fjsonld

Comments:

1. Extractor context definitions are similar to user specified metadata, they both provide what kind of metadata will be added
   1. How much flexibility do extractors get when adding metadata?

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1. Should ContextLD and Metadata services be combined into one?

Extractor

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info tentative model:

case class ExtractorInfo (
  id: UUID,
  name: String,
  description: String,
  creator: User,
  version: String,
  contexts: List[UUID],
  external_services: List[URL],
  libraries: List[String]
)