Utilizing service oriented architecture for Personal Information management

Today Personal Information like contacts' name/addresses, calendar, schedules, and ToDo items is fragmented into many separate sources that are redundant, conflicting little islands ultimately failing to create a coherent view of our life, about "What I got to do with whom, when and where?" If network is the computer than the application must be a service. To unite the chaotic world of PIM we need a service that is implemented on pervasive technology to reach every part of this Universe, rather than syncing data sources to each other. In this paper we propose to maintain a single centralized state to expose the data in different formats by a variety of access protocols. To solve the problem of exposing the data and logic to different formats and protocols N-tier architectures has been utilized, and to resolve the problem of redundant implementations of the logic and the limitation of the persistent state we design a core set of AN which we call it "kernel". It is independent of protocols and presentation formats and adoptable to variety of GUI presentation formats and access protocols. For the implementation of the kernel we used Java as it offers a pervasive technology, which can be used to build a pervasive service leveraging the desktop, the server side, and mobile devices.