01841nas a2200205   4500008004100000245005100041210005100092260001100143300001500154520123200169100002101401700002201422700001901444700002201463700001201485700001301497700001401510700001401524856009701538       2005                        eng d00aApplication on Demand System over the Internet0 aApplication on Demand System over the Internet  cAugust  a 209 - 2323 aThis paper describes the design and implementation of the ASP-NG system. The main modules of
the ASP-NG system are the AoD service and the Web Portal. The ASP-NG Portal is a portal for
providing the user with the necessary interface in order to access an Application on Demand (AoD)
service. The ASP-NG portal is responsible for the interaction with the user of the AoD service. Using
the AoD service the user rents an application for a limited time period at a fraction of the actual cost of
the application. The AoD service is responsible for downloading the appropriate parts of the
application according to the user’s actions, while enforcing the mutually agreed frame between the
user and the Application Service Provider (ASP). The implementation of the ASP-NG portal is based
on the Web Services of the Java 2, Enterprise Edition platform and the implementation of the AoD
module is based onCCCprogramming language. The ASP-NG portal offers to its users the capability
to select and customize the language of the user interface in order to present information in their
preferred language. Moreover the ASP-NG portal offers to the portal administrator the capability to
customise the look and feel of the ASP-NG portal.1 aBouras, Christos1 aGkamas, Apostolos1 aStamos, Kostas1 aPrimpas, Dimitris1 aNave, I1 aShani, A1 aSheory, O1 aTzruya, Y  uhttp://telematics.upatras.gr/telematics/publications/application-demand-system-over-internet