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Chapter: User Interface Design

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Importance and Benefits 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.

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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