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https://issues.apache.org/jira/browse/UIMA-1290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12672277#action_12672277
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Thilo Goetz commented on UIMA-1290:
-----------------------------------

Not sure I understand all the requirements.  When you say "type system", do you 
mean a type system object like in CAS.getTypeSystem(), or do you mean an XML 
rendering?  I understand that for binary serialization, the type systems must 
be identical in the sense that the internal type codes must be the same.  What 
do you mean by "compatible"?  And what do you mean by "validation of type 
systems"?

> Need a Way to Determine if Two Type Systems Are Compatible
> ----------------------------------------------------------
>
>                 Key: UIMA-1290
>                 URL: https://issues.apache.org/jira/browse/UIMA-1290
>             Project: UIMA
>          Issue Type: New Feature
>          Components: Core Java Framework
>            Reporter: Jerry Cwiklik
>
> Uima AS client needs to validate that the type system returned from a Uima AS 
> service is compatible. In case when a binary serialization is used, the type 
> systems *must* be identical. For XMI serialization, the type system of the 
> delegate*must* be compatible but not necessarily identical. The core should 
> provide an API which will enable the validation of type systems. 

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