CAT Portal will be developed based on IBM WebSphere Portal Technology.
This technology support single sign on concept that when user has signed on to CAT Portal, he/she can use multiple service without signing on again.
There will be exceptional case for first time using each external application , user has to enter username and password once in order for the portal to remember them.
CAT Portal will be consisted of multiple portlets that represent the windows to each application.
To display web page of other web sites, iFrame or web clipping portlet will be used depending on contents.