Templates in web development are pre-made web pages or a set of HTML web pages that editors can use to place their content. It’s what defines the markup on your website, and you’re in control of the output.
Templates in Umbraco
Templates in Umbraco CMS are built on the concept of Razor views from ASP.NET MVC. What makes templating in Umbraco different is model data.
Every document type you create in Umbraco will have its own template if you chose so. And once document type is created it will build a public class in the backoffice of Umbraco.
You can easily access and display document type properties in your templates using IPublishedContent which makes it easy and fast to build the presentation of your website.
When templating in Umbraco, the output is controlled completely by you.