# 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="https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FFfknPfNedjSU7YNfVx3A%2Fimage.png?alt=media&#x26;token=c474fe7a-d709-4b45-8539-d0dcb89c4d3e" alt=""><figcaption><p><em>Image 1: Reference Lines &#x26; Reference Ranges</em></p></figcaption></figure>

In this document:

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[Introduction to Reference Lines and Reference Ranges](https://docs.xviz.com/project-management/reference-lines-and-reference-range/introduction)
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[Setting up using configurations](https://docs.xviz.com/project-management/reference-lines-and-reference-range/static-approach)
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[Setting up using data-fields](https://docs.xviz.com/project-management/reference-lines-and-reference-range/data-driven-approach)
{% 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)