How a content of a type behaves is highly configurable with respect to various facets. In the content type definition (the XSD) you can configure
We survey the various configuration options that are handled in depth in separate topics.
Each value has a comfortable way to specify it. Say "true" by clicking a checkbox, refer to an image by chosing it from a gallery and so on. Widgets provide various ways to enter a value. Check out which widgets are available, how to configure them for your content type and how to write your own widgets.