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Number of years all bugs have been open

What does this chart mean?

This chart shows our bugdebt in total years.
Bugdebt is calculated by adding up the total number of years all open bugs have been open for.
This can be compared against the expected bugdebt had we done nothing and if no new bugs were opened.

CBSI

What does this chart mean?

A CBSI of 0 means that no bugs were closed and no new bug were added over a period.
A positive CBSI means the debt went up less then expected.
A negative CBSI means the debt went up more then expected.

The CBSI (Community Bug Smash Index) shows the impact the community had on the bugdebt.
Bugdebt is calculated by adding up the total number of years all open bugs have been open for.
This is then set out against the expected bugdebt had we done nothing and if no new bugs were opened.
The resulting difference between actual bugdebt and expected bugdebt is then divided by the number of days that it took us to achieve that difference,
and that gives us our CBSI.

Debt change by years per day

What does this chart mean?

This chart shows our bugdebt change by years per day.
For the period March 2011 when the D8 branch was opened, to April 2020 when we started taking data points
this was 8.180915111.

Number of open bugs per year since they were opened

What does this chart mean?

This chart shows the number of bugs that have been open for the given number of years.
By pressing the 'Start animation' button, you will see how the number of bugs in each segment has changed over time.