Increasingly, mobile devices such as personal digital assistants can be used to connect to central systems to query and update data remotely. This is helped by the latest mobile devices having better ways of inputting data than the alpha-numeric keyboard traditionally found on mobile phones, eg via touchscreens, scroll wheels and/or small fold-out keyboards.
Examples data exchange include:a salesperson on the road needing to know the current stock and availability of a product that a customer needs a job sheet for maintenance engineers to use on the road
Displayed on their PDA or mobile phone and updated regularly so they know where to go for the next call a message from an Internet service provider (ISP) to an IT manager saying that the ISP systems have detected a failure in the link from the business to its systems
All of these scenarios depend on some key features of mobile commerce (m-commerce) messaging such as:the ability to receive and transmit text-based messages using methods such as short message service (SMS) security features that ensure that such messages cannot be intercepted and that the origin can be verified
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