24 July 2024

Agile technical debt and escaped defects

Escaped Defects

  • Escaped Defects are those defects reported by the Customer from production that have escaped all software quality processes are represented in this metric.

Technical debt

How proceed with Technical debt ?

  • Escaping defects should then be treated as ranked backlog work items, along with other project work items.
  • They should be prioritized high enough to resolve them within the next sprint or two and not accumulate a growing backlog.

Technical debt and metrics

  • Watch the defect backlog as part of the project metrics.
    • A growing defect backlog is a key indicator that the team is taking on more new work than it can handle.
  • To be able to calculate that metric, it is important that in your defect tracking system you track:
    • Affected version, version of software in which this defect was found.
    • Release date, date when version was released
  • The calculation process:
    • Find all versions that were already released
    • For each version, find all defects that affected the version
    • If defect creation date is after version release date then this defect is an escaped defect.
    • Now count all those escaped defects.

Monitor Escaped defects

  • It should be possible to monitor Escaped Defects found in following dimensions :
    • Affected version, to monitor metric value of any released version.
    • Project/Product
      • To aggregated Escaped Defects found over all released versions of the project or product.


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