Knowledge work system give knowledge workers the specialized tools they need, such as powerful graphics, analytical tools, and communications and document management. These systems require great computing power to handle the sophisticated graphics or complex calculations necessary for such knowledge workers as scientific researchers, product designer, and financial analysts. Because knowledge workers are so focused on knowledge in the external world, these systems also must give the worker quick and easy access to external databases. They typically feature user-friendly interface that enable users to perform needed tasks without having to spend a lot of time learning how to use the computer. Figure 10.16 summarizes the requirements of knowledge work systems.