Why is it important to have a "Definition of Done"?

A Definition of Done (DoD) matters because it creates a shared understanding of what "work is finished" means. Without it, the team may consider a task "done" in different ways - one developer has finished the code, another thinks it still needs testing.

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#Why DoD is needed

1. It provides a single quality standard All tasks go through the same checks - code, tests, documentation, deployment. This guarantees the product is stable and ready to use.
2. It creates transparency The team, the Product Owner, and the client all understand in the same way when a task is truly done. There is no gap between "almost done" and "ready for release".
3. It increases predictability When the criteria are fixed, the team estimates tasks more accurately and plans the sprint better.
4. It reduces technical debt Unfinished tests, incomplete documentation, and "small fixes for later" do not pile up - everything is taken to completion.

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#Example of a simple DoD

• The code is written, reviewed, and merged.
• Unit and integration tests have passed.
• The documentation has been updated.
• The functionality has been deployed to a test environment.
• The Product Owner has accepted the task.

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#Conclusion

A Definition of Done makes quality measurable, the process transparent, and the result reliable. It is the filter every task passes through before it reaches the user.