Oracle E-Business Suite Home Page

To access a public oracle E-business suite follow this link have the username and password need to login into the applications.I am using R12 instance.(http://vis1200.solutionbeacon.net/OA_HTML/OA.jsp?OAFunc=OAHOMEPAGE)
To access R-12 Vision Instance
User Name : GR8866 / GR2023
Password : 8866GR / 2023GR

After login to the application your home page looks like this

This is the home page.Left panel will have all the responsibility which user have
and the right panel shows the functions of each responsibility.
Once you enter into the applications the first thing both technical and functional consultant should know is Application Developer.
Refer oracle's application developers guide to know more about application developer responsibility and its functions