Analysis of OSM events in Bugzilla

1. Imports and cleans raw source data with all Bugzilla events

2. Current state of open bugs

2.1 Number of open bugs

Total number of open bugs:

Bugs present in multiple branches:

Number of bugs per module

2.2 Age of open bugs

Age vs. state of open bugs (global)

Age distribution per module

NOTE: To see how a boxplot representation works, you may refer to this article.

2.3 Outliers

Four types of bug age outliers are identified:

  1. Too old bugs.
  2. Pure outliers for boxplot: Beyond Q3+1.5IQR for the MDG.
  3. Beyond 3rd quartile of ages.
  4. Age beyond 2 months.

Summary table of outliers:

Outlier details

Too old bugs:

Pure outliers:

Beyond Q3:

Beyond 2 months:

3. Temporal evolution

3.1 Number of open bugs

Recent evolution of open bugs:

3.2 Age of open bugs

Recent evolution of age of open bugs:

3.3 Monthly activity

Recent evolution of bug resolution activity:

Evolution of the number of open bugs per module in the last 6 months:

Reasons for the variation in the number of open bugs per module in the last 6 months:

4. Top contributors

4.1 Top reporters of bugs

Individual contributors:

Contributions per company:

4.2 Bugs assignments

Top assignees of bugs still open:

4.3 Top closers of bugs

5. Last significant events

5.1 Last reported bugs

5.2 Last bug assignments

5.3 Last resolved bugs


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