Importance of Good Design
Inspite of today’s rich technologies and tools we
are unable to provide effective and usable screen because lack of time and
care.
A well-designed interface and screen is terribly
important to our users. It is their window to view the capabilities of the
system and it is also the vehicle trough which complex tasks can be performed.
A screen’s layout and appearance affect a person in
a variety of ways. If they are confusing and inefficient, people will have
greater difficulty in doing their jobs and will make more mistakes.
Poor design may even chase some people away from a
system permanently. It can also lead to aggravation, frustration, and increased
stress.
Benefits of Good Design
The
benefits of a well-designed screen have also been under experimental scrutiny
for many years. One researcher, for example, attempted to improve screen
clarity and readability by making screens less crowded. The result: screen
users of the modified screens completed transactions in 25 percent less time
and with 25 percent fewer errors than those who used the original screens.
Another researcher has reported that reformatting
inquiry screens following good design principles reduced decision-making time
by about 40 percent, resulting in a savings of 79 person-years in the affected
system.
Other benefits also accrue from good design (Karat,
1997). Training costs are lowered because training time is reduced, support
line costs are lowered because fewer assist calls are necessary, and employee
satisfaction is increased because aggravation and frustration are reduced.
Another benefit is, ultimately, that an
organization’s customers benefit because of the improved service they receive.
Identifying and resolving problems during the
design and development process also has significant economic benefits.
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