I'm making new system using Oracle JDeveloper 11g (22.214.171.124.0) but i'am confused how to make the structure of the User interface application
is it better to make every page in one application or make the all the pages' system in one application ?
One application for a page can be done, if you put all the needed sub pages into regions and then switch the regions if you go form e.g. employees to department.
However, for big systems to use only one page night not be a great idea, as you need to have a real good switching logic to make it run as you like. You may be better off dividing the application into logical units which you then can put onto a page.
You still have some regions you have to switch but it's restricted to logical units.
And one part of the app doesn't influence the other, as in the one central switcher which would be the bottle neck.