Purpose

Unresolved Bugs Older Than a Month (all priorities) shows the amount a number of defects (all priorities) which has not been resolved since open defects for today with a lifetime more than a month.

How metric helps

Unresolved Bugs Older Than a Month (all priorities) helps to monitor the efficiency of the quality assurance process in a project. Suggested acceptable indicator value is <20. Calculation is based on issues created within last 90 days. reveals a number of open defects living more than a month so that they have to be taken into consideration while planning development efforts. The expected value is equal to zero.

How metric works

Chart overview

Chart shows Unresolved Bugs Older Than a Month (all priorities) in amount of all defects in not completed statuses that were created more than 30 days ago.
Image Removeda number a number of open defects with a lifetime more than a month - number in the center. Target value is above the chart.  

...

By click on a chart a pop up appears with the following information got from the task tracking system: 

• Issue ID

• Type

• Priority

• Summary

Calculation

Unresolved Bugs Older Than a Month (all top priorities) is measured as a number of items

where,

issue type is Bug,

status of issues is not Closed,

Creation Date is older than 'current date minus 30 days.

The metrics calculates issues that were created within last 90 days.

defects of a top priority being in not "Done" status for the last 30 days.

RAG thresholds:  Red - metric value > 200; Green - metric value = < 20. 0. 

Data Source

Data for the metric can be collected from a task tracking system (Jira, TFS, Rally, etc.).

See also

• Open bugs over time by priority

• Quality Debt