A similar situation is when a company decides that it is going to take advantage of devices already in use. These devices may have been supplied by the company for other applications or they may be devices that employees have purchased on their own and expensed to the company. In either case, you are usually looking at supporting a wide range of devices ranging from WAP phones to high-end PDAs. If you are mandated with developing an application that can take advantage of these devices, then you once again are limited in the architecture that you can choose. In this case, the outcome is usually that a wireless Internet solution is the only option since developing a smart client application for multiple device types running multiple operating systems may go beyond the original scope of the project.Of course, choosing a device is not the only time when miscommunication between departments causes setbacks or even failure. Talking to the network administrators before deciding which method to use to get past the firewall is always good advice.There are, of course, exceptions to these scenarios. For instance, specialty shops that cater to a certain type of device can usually be guaranteed to provide certain capabilities. Furthermore, if your company has recently mandated a certain device for use in all or certain circumstances, then provided you are quick to market, you can be reasonably assured of your target devices. And, most likely, your company already has in place at least a few methods that enable external devices to access corporate resources, of which you can take advantage.The overall message to application architects and developers is to expect the unexpected, as there are many unpredictable factors that will impact the application architecture, device, and network selections. It is a good idea to plan ahead so you do not waste resources on decisions that are out of your hands. In general, plan to have email and wireless Internet access as a component of any solution you are deploying, even if they are not part of the specific application you are developing.
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