Work Stoppages Life Time
- AnahitMa
- Denis Olevanov (Unlicensed)
- Natallia_Mendzel@epam.com
- Anastasia Baranouskaya
Purpose
Work Stoppages Life Time shows a resolution time of impediments in a project: time in hours from the moment an item became "blocked" until the actual date/time of its closure.
How metric helps
Work Stoppages Life Time helps to determine how many hours per selected timeline/month work has been stopped because of blocking items.
How metric works
Chart overview
Chart shows a resolution time of impediments in hours - Axis Y by month - Axis X.
On hover over a column a hint appears with the following information:
Average life time for the selected month;
Total lifetime for the selected month.
Drill down includes the following:
Issue ID;
Type;
Priority;
Summary.
Chart legend shows the following:
the last calculated number of the metric;
difference between the last metric values and the previous.
Note
1 Chart drill down shows items info (types, priority) for today state, not historical (for example if item's priority was changed in November from Major to Medium, then this item's priority will be medium in the drill down for October).
Calculation
Work stoppages lifetime = ∑Li...n/Ni,
where
Li - a work stoppage lifetime in hours in a considered month. If an issue is closed in the month effort logged after the issue closure later 00:00 next day is also included;
Ni - number of work stoppages in a considered month.
Calculation notes
1 Work stoppage is an issue satisfying a blocked status defined in Project Settings>Data Sources>Task Tracking System>Scope Management criteria 'Work stoppages tracking'.
2 If an issue lives all month long, the average amount of hours will be the same for a particular month for different projects if a number of work stoppages doesn't change during a month.
Example
Case 1: number of issues remains unchanged during the month:
Calculation for 612 work stoppages existing the whole month: 31 days*24 hours*612 issues/612 issues= 744 hours.
Case 2: number of issues changes during the month:
Total lifetime: 3 days*24 hours*1 issue + 2 days* 24 hours*1 issue + 31 days * 24 hours * 5 issues = 3840 hours.
Average lifetime: 3840 hours/7 issues= 549 hours.
Data Source
Data for the metric can be collected from a task tracking system (Jira, TFS, Rally, etc.).