> 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/software-qualities.md).

# Software qualities

Software qualities describe the key attributes of high-quality code: secure, reliable, and maintainable. This page is for SonarQube 10.6.

{% 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 %}

High quality code contributes to software that is secure, reliable, and maintainable. These three aspects, security, reliability, and maintainability, are called *software qualities* in SonarQube and they contribute to the long-term value of your software.

## Security <a href="#security" id="security"></a>

Security is the protection of your software from unauthorized access, use, or destruction.

## Reliability <a href="#reliability" id="reliability"></a>

Reliability is a measure of how your software is capable of maintaining its level of performance under stated conditions for a stated period of time.

## Maintainability <a href="#maintainability" id="maintainability"></a>

Maintainability refers to the ease with which you can repair, improve and understand software code.


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