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For example at YME for Yamaha Motor Portfolio Board (YPB)  issue type Strategic Theme and Initiative have been created by a Jira Administrator and for XRAY (test management tool) add-on the following issue types are created: Test, Test execution ,Test Plan, Test Set.

YME Jira

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Hierarchy 

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YMEHIERARCHY YMEHIERARCHY

The Hierarchy for Plans, project items are grouped into hierarchy levels based on Issue Types.
For YME Jira the following Hierarchy has been setup:
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Level 1-3 is used for Portfolio planning:

Level 1: Capability (YNSEU)
Level 2: Programme (YPM) , Strategic Theme  (YPB), Milestone (YNSEU), 
Level 3: Initiative (YPB) , Feature (YNSEU), Project (YPM)

All others levels are used in Jira Software projects.

Story level = Story, Enable Story, Task, Spike, Bug, Defect and for Jira Service Management Incident, Service request, Service request with approvals etc.

Hierarchy linking is done through epic link or parent link. You cannot skip a level so

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an epic must always be linked to a Initiative, Feature or a Project.

Workflow

A Jira Workflow has three basic components: statuses, transitions and resolutions.

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Searching for flagged issues

The flag for an issue is stored in a custom checkbox field named "Flagged", which has only one value: Impediment.

This means that you can use this JQL query to find flagged issues: Flagged = Impediment



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