Now that you have Fedora 4 running either as a war deployed to Tomcat or via Maven and Jetty, you can navigate in your web-browser to the HTML front end of Fedora 4.
 
Which should be located here: http://localhost:8080/rest
 
The interface is comprised of several regions:

The Navigation Bar

 

From here you can navigate between Home/Namespace/Workspaces and the search interface. 

Home

Is where the heart is, also where you will spend most of your time.

From here you can:

• Ingest new Objects and Data-streams. 
• Inspect the properties of Objects and Data-streams. 
• Update the properties of Objects and Data-streams.
• Navigate the Repository Hierarchy of Objects and Data-streams.

Fedora 4 is different from Fedora 3 in that there is an innate tree hierarchy to the repository rather than a flat hierarchy. 

Navigate Hierarchy

Just below the Navigation bar, we have the path to the Object (Which is also it's identifier) displayed as the page's title. 

The displayed breadcrumbs can be used to navigate back up the hierarchy to the ancestors of the currently display object.