ExpressionEngine url schematic is detail description for developer.
Viewing your Site
Because you don’t actually have physical pages on your site, the URL you use will determine what you see on your site. At its simplest, you access pages on your site using this URL formula:
Notice that the Template Group and Template are contained in the URL. An Example: Let’s say you create a Template Group called “channel”, and within it you create a Template called “about_me”. To access it you will use the following URL:
If you only specify the Template Group in the URL (and leave off a Template name), EE assumes you want to show the “index” template for that group:
The above URL is identical to doing this: