Developing Large Projects with JDeveloper

i have 2 questins :
1 - i don't know is it possible to develop large project such as a total system
with about 20 subsystems and 1000 forms and reports with jdeveloper?
2 - we have planed to build a webapp for each subsystem that it contains MODEL and VIEWCONTROLLER project.with this idea we cann't link from one VIEWCONTROLLER to anather in anather project, for example user can not go to another page from anather project without logon again.
now my very immportant problem is comunication between pages in different projectsand maintain different objects such as USER object between pages.
do you think that building such project with only one application with one MODEL and one VIEWCONTROLLER is correct or building it in differt project is better?
could you please tell me that what is your idea to develop large project with jdeveloper?

dear jan,
I want my users to authenticate once, and have access to the subsystems they are authorized for.
but there is a problem in development and that is with this type of large projects you will have in Model Proj. a lot of AM , EO , VO and in View Proj. a lot of JSPX and XML file. and if i make only one App with one Project for Model and One Project for View, during development for example i want work on one subsystem and others on other susystem. and when i change 1 jspx file i should deploy TOTAL SYSTEM with 20 subsystems completely and i think this is'nt strategy for development.
i think it's good to develop any subsystem in one app with Model and View and finally deploy any subsystem separately.
thanks for your reply

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