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Bug life Cycle


What is a Bug Life Cycle?

A bug life cycle traces the status of a bug from the time it is first found out till its eventual elimination by the testers. During this life cycle, it has to be ensured by the testing team that there should be no chance of bug being reproduced again.

Bug Life Cycle Stages

With the flow diagram as a reference, here’s a brief status-wise description of the bug life cycle.


Bug Life cycle diagram


  1. NEW:

    When a bug is detected for the first time in the software, its status is designated as new.

  2. ASSIGN:

    After a testing professional has detected a bug, the lead tester acknowledges its existence and gives his approval to assign the defect to the project manager of the development team.

  3. ACTIVE:

    This is the stage where the bug undergoes thorough analysis by the development team. At this point, the development lead has to make a decision to either reject the initial finding of the testing team in identifying the flaw or defer it’s rectification to another date.

  4. REJECTED:

    Many a times, a flaw sent to the development team is so innocuous, that it is not even considered a bug and is rejected.

  5. DEFERRED:

    Sometimes due to time constraints, the development team has to categorise certain bugs on a priority basis and may push less critical bugs to the backburner.

  6. DUPLICITY:

    There are occasions when a flaw which has been cleared by the QA team or a bug whose nature is pretty similar to a previously dealt flaw resurfaces. Such examples are categorized as duplicates.

  7. TEST:

    After the development team has rectified the flaw with modifications in the form of necessary changes to the program code, it is said to be ready for re testing.

  8. REOPENED:

    When the bug is not fixed, QA team reopens the bug and it must change the status of being “reopened” and the flaw undergoes in the same cycle once again.

  9. VERIFIED:

    After the flaw has been given a go-ahead by the development team, it needs a final verification in the form of a retest by the testing and QA team.

  10. CLOSED:

    This is the final state of bug that can be closed after QA retesting. And, finally it can be marked as fixed or closed.

Bug Life Cycle Infographics



Bug Life Cycle Infographics

Bug Report Template:

An integral part of the bug life cycle, a bug report is a document prepared during the process of testing that offers all the necessary information regarding the various defects, errors, bugs, and other discrepancies found in the software product.

It is prepared by the testing team to keep the developers informed about the status, priority, and severity of the defects, as well as to ensure that they are fixed and resolved, before the release of the product. This report follows a standard format to deliver accurate and concise information, which includes the following details:

  1. Bug Identifier.
  2. Project.
  3. Build Number.
  4. Path.
  5. Severity.
  6. Priority.
  7. Assigned To.
  8. Reported by.
  9. Reported on.
  10. Bug Status.
  11. Source URL.
  12. Steps to Reproduce.
  13. Actual Result.
  14. Expected Result.
  15. Test Environment.
  16. Bug description.
  17. Attachments.

For the complete template/format of a Bug Report, click here.



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