> For the complete documentation index, see [llms.txt](https://docs.xviz.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xviz.com/project-management/reference-lines-and-reference-range.md).

# Reference Lines and Reference Range

The xViz Gantt Chart provides you with the option to display **Reference Lines** (based on dates) and **Reference Ranges** on the chart thereby giving an indication of where you are in the project and to assess the level of completeness.

<figure><img src="/files/71PHe9nxKuKxJydBYteY" alt=""><figcaption><p><em>Image 1: Reference Lines &#x26; Reference Ranges</em></p></figcaption></figure>

In this document:

{% stepper %}
{% step %}
[Introduction to Reference Lines and Reference Ranges](/project-management/reference-lines-and-reference-range/introduction.md)
{% endstep %}

{% step %}
[Setting up using configurations](/project-management/reference-lines-and-reference-range/static-approach.md)
{% endstep %}

{% step %}
[Setting up using data-fields](/project-management/reference-lines-and-reference-range/data-driven-approach.md)
{% endstep %}
{% endstepper %}

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Try the [xViz Gantt Chart](https://xviz.com/visuals/gantt-chart/) (Microsoft certified) for Power BI from Microsoft AppSource [here.](https://appsource.microsoft.com/en-sg/product/power-bi-visuals/WA200000891?tab=Overview)