Introduction to Occasionally Connected Applications using Sync Services for ADO.NET

    Throughout this document we will discuss Occasionally Connected Applications, with a special emphasis on Sync Services for ADO.NET, a key technology that enables developers to build offline data applications.
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        The ability to support mobile and remote workers is becoming more and more important for organizations every day. It is critical that organizations ensure users have access to the same information they have when they are in the office.

        One solution is to implement an Occasionally Connected Application (OCA). An OCA allows a remote worker to continue to access their data, but unlike the previous scenario where the user accessed the corporate database directly, the information the worker requires is stored locally on the user’s device. In order to populate this user’s local database, an OCA will typically include some data synchronization capabilities. Data synchronization consists of the ability to periodically take information that is stored in the client database (such as SQL Server Compact) and synchronize changes with a server database (such as SQL Server). The advantage of a synchronization-based solution is that users are no longer required to have a constant network connection to access their information. Since their data is stored locally they are given constant access to their data while offloading processing requirements from the central database. Furthermore, the user is no longer limited by the network speed and can now access the data at the speed of the device.
    • Supported Operating System

      Windows Mobile 6, Windows Server 2003, Windows Vista, Windows XP

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