Hardware

User-Centered Design of Graphical User Interfaces

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Executive Summary

In user interface design a common pitfall is to use the technical properties of the device as basis for the design, which easily causes a user interface to become too complicated and hard to use. Also, the great development in the area of different hand-held terminal devices has set new requirements for user interfaces: screen sizes of devices are very small, advanced I/O devices are used instead of ordinary mouse and keyboard and the operating environment of the devices differs significantly from familiar PCs and laptops. However, governmental and in particular military communications systems often trail behind this development. To be able to overcome the aforementioned challenges and take usability of governmental communication systems to a new level, a new approach is needed.

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