We used QGIS earlier. We switched to ESRI for commercial reasons. When you enter a corporate environment, the probability of them using QGIS is zero. It will be corporate software with corporate support and corporate liability with the software you're using. QGIS is free and open-source. You get data from one place, do something to it, and then sell it to a customer, but if it's all completely wrong, you'd go, "Well, we used QGIS." You need to use something within a corporate framework or with the support of many governments and other corporations. If everybody else is using the same software and getting solid, accurate results, the probability is we're gonna get the same thing. Whereas if you're using free and open-source software, you don't know if you will.

We previously used a different solution and several years ago we purchased and started using another product. The product was purchased by ESRI back in 2005, if I remember correctly. The name was Atlas GIS from Strategic Mapping. When it was sold to ESRI, it was incorporated into the product lines. So we use more than one product from the same company.

We were using a different tool, but it did not adapt to our demands. This tool is more useful, which is why we chose it.