The use of graphical user interfaces in a computerized work environmen
t is often considered to substantially improve the work situation. The
outcome can, however, often be the opposite. Inappropriate use of win
dowing techniques, scrolling, and colors can result in tedious and con
fusing interaction with the computer. Today's standards and style guid
es define basic design principles but are insufficient for design of i
nterfaces to end-user applications. Here detailed domain knowledge is
indeed essential. A domain-specific style guide (DSSG) is an extension
of today's standard with domain-specific primitives, interface elemen
ts, and forms, together with domain-specific guidelines. Careful dedic
ated analysis of information utilization in a domain is the developmen
t basis for a DSSG. The development is performed with an object-orient
ed approach to facilitate the reuse of interface components and to sup
port consistency and structure. Using a DSSG, the development of appli
cations can be performed with a simplified information analysis. There
fore a more effective design process is possible, one in which end use
rs can participate in the design using their own familiar domain-relat
ed terminology. Time and costs for the development process can be dras
tically reduced if domain-specific style guides, design guidelines, an
d development tools are used.