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https://issues.apache.org/jira/browse/ATLAS-1211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15949283#comment-15949283
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Nigel Jones commented on ATLAS-1211:
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fixed in ATLAS-1410 proposal
> Classifications : Support subclasifications & ordering
> ------------------------------------------------------
>
> Key: ATLAS-1211
> URL: https://issues.apache.org/jira/browse/ATLAS-1211
> Project: Atlas
> Issue Type: New Feature
> Reporter: Nigel Jones
>
> Governance classifications may be ordered and contain sub-classifications.
> For example a classification "confidentiality" may contain an *ordered* set
> of values such as
> - unclassified
> - internal use
> - confidential
> - sensitive
> - restricted
> - top secret
> The ordering is a logical progression -- going from the least confidential to
> the most confidential.
> When these governance classifications are retrieved or checked against we may
> wish to performance range checks. For example in a ranger policy we may wish
> to do the equivilent of "if confidentiality >= confidential then.."
> Furthermore these classifications may be hierarchical. The mail thread below
> uses the example "confidential/business confidential" and
> "confidential/personal confidential". these are at an equivilent level, but
> different
> Atlas should be extended to support this.(further JIRAs would be needed to
> update ranger)
> In terms of implementation, For existing apis/tag integration we may consider
> a form of flattening or overloading the name to ease migration.
> Note that this will prereq the anticipated work on ATLAS-1187 to introduce
> classifications, but I've split this further development out so that we can
> get a first pass done in 1187
> This suggestion first came up in the mailing list discussion on "Rename Trait
> to classification", which relates to ATLAS-1187 - also viewable on gmane at
> news://news.gmane.org:119/[email protected]
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