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https://issues.apache.org/jira/browse/UIMA-6266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17211979#comment-17211979
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Richard Eckart de Castilho commented on UIMA-6266:
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What are the positive/negative sides of XMI and/or the JSON format that
currently can be generated by UIMA?
What would be requirements such a format would need to respect?
Here are a few I could think of:
* Should be reasonably usable with plain JSON support (i.e. without having to
interpret a ton of auxiliary information encoded in the JSON file)
* Should avoid too much unnecessary redundancy
* Should be interpretable without a separate type system description
* Should allow embedding the full type system declaration
* Should support multiple views
* Should support indexed and non-indexed FSes
* Should support encoding of partial CASes
* Should support encoding data from multiple CASes
* Should have a stable ordering of data to permit easy text-based diffing
* Small changes in the data should lead to small changes in the serialization
to permit easy text-based diffing
* Type information should be using JSON types as much as possible (e.g. to
represent boolean, string, integer, etc)
* Where additional type information is necessary, an embedded (or externally
loaded) type system should be consulted
> Clean JSON Wire Format for CAS
> ------------------------------
>
> Key: UIMA-6266
> URL: https://issues.apache.org/jira/browse/UIMA-6266
> Project: UIMA
> Issue Type: New Feature
> Components: Core Java Framework
> Reporter: Daniel Gruhl
> Priority: Major
>
> A clean format for sending CAS over the wire in JSON would make
> interoperation with other text analytics systems much easier. Impact on UIMAj
> would be a need for the serializer and deserializer for these formats.
>
> The hope would be this is NOT just a cut and past of the XMI, but rather a
> clean rethink of what would represent the best wire format going forward.
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