After the component is installed, you can a menu Item to it. This allows to access the component through a menu rather than having to remember what to type into the address bar. Each view can have its own menu item. The details are stored in the default.xml file located in the tmpl folder.

site/views/helloworld/tmpl/default.xml

<?xml version="1.0" encoding="utf-8"?>
<metadata>
<layout title="Hello World Message">
<message>Displays a message</message>
</layout>
</metadata>