Week 2 - Research Paper Topics

Week 2 - Research Paper Topics - Wireless mobile 3G/4G data...

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Wireless mobile 3G/4G data access for remote workers 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. In most cases, these workers will have some sort of laptop, office desktop, Smartphone, or PDA. From these devices, users may be able to access their data directly through VPN connections, Web servers, or some other connectivity method into the corporate networks as seen below. Advertisement This type of solution is fairly simple to implement. Unfortunately, for most remote workers it is less than satisfactory. Some major disadvantages of this type of solution include: 1. Network Requirements : In order to allow users to access their information, the remote device needs to have a constant connection to the corporate network while accessing their data. For some workers, such as those who are working from home, this may not be a problem. For others, such as sales reps who are constantly on the move, this may be more difficult. For example, if that sales rep were visiting a customer and was unable to access
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inventory data because of a lack of network connectivity, it would be very difficult for this user to effectively do their job. 2. Data Access Speeds : In a typical client/server corporate environment, users have high speed networks that allow them quick access to information. Remote workers, however, are typically connected over slow, unreliable wired or wireless networks. With this solution, every piece of data this user needed would need to be downloaded every time it is requested because there is no way to persist the data on the device. For example, if a sales rep is required to download his product list every time he opens his application, he will quickly become frustrated with the time lag required to populate his application with information. 3. Single Point of Failure : With this type of solution, all users are reliant on a single server. If that database becomes unavailable due to planned server downtime or from server failures, all of the remote workers will be disconnected from their data. 4. Server Scalability : As more workers work remotely, the performance of the corporate servers will be affected, leading to a need to add additional hardware. One alternative to this 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
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Week 2 - Research Paper Topics - Wireless mobile 3G/4G data...

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