> For the complete documentation index, see [llms.txt](https://docs.sonarsource.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sonarsource.com/sonarqube-server/10.6/user-guide/code-metrics/modifying-technical-debt-parameters.md).
# Modifying technical-debt parameters
You can modify in the SonarQube Server 10.6 UI at the global level some parameters related to the maintainability metrics
{% hint style="info" %}
**For AI agents:** You're in the SonarQube Server 10.6 documentation. For a list of all 10.6 pages, see the [SonarQube Server 10.6 page index](https://3001318305-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVhGCsZJo9Ao0Jjyhvpxl%2Fuploads%2Ff9vLtbQH3RPKLlpDPMG5%2Fsonarqube-server-10.6-llms.txt?alt=media). For the whole site, see the [page index](https://docs.sonarsource.com/llms.txt) or the [full text](https://docs.sonarsource.com/llms-full.txt). For another version, replace 10.6 in the URL with that version. The [latest version](https://docs.sonarsource.com/sonarqube-server/) has no version number in its URL.
{% endhint %}
You can modify in the SonarQube Server UI at the global level some parameters related to the [Metric definitions](/sonarqube-server/10.6/user-guide/code-metrics/metrics-definition.md) provided you have the Administer system permission. Alternatively, you can set the corresponding sonar property on the CI/CD host (see Analysis parameters).
## Changing the software development cost calculation
The development cost of one line of code is used in the Technical debt ratio calculation. To change the default value:
1. In the top navigation bar of SonarQube Server, select **Administration > Configuration > General settings > Technical Debt**.
2. In **Development cost**, change the values (in minutes).
The corresponding sonar property is `sonar.technicalDebt.developmentCost`.
## Changing the maintainability rating grid
To change the default Maintainability rating grid:
1. In the top navigation bar of SonarQube Server, select **Administration > Configuration > General settings > Technical Debt**.
2. In **Maintainability rating grid**, change the rating definition.
The corresponding sonar property is `sonar.technicalDebt.ratingGrid`.
---
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