Datum 2014
USER INTERFACE
DESIGN
Websites, computers, appliances, machines, mobile
the experience.
• Graphic interface design – actual look and feel design
of the final graphical user interface (GUI). It may be based
on the findings developed during the usability testing if
usability is unpredictable, or based on communication
objectives and styles that would appeal to the user. In rare
communication devices, and software applications with the
cases, the graphics may drive the prototyping, depending
focus on the user's experience and interaction.Goal- make
on the importance of visual form versus function.
the user'sdesign of interaction as simple and efficient as
possible, in terms of accomplishing user goals— often
REQUIREMENTS:
called user-centered design.
Good user interface design facilitates finishing the
Dynamic characteristics of a system are described
in terms of the dialogue requirements contained in seven
task at hand without drawing unnecessary attention to it-
principles of part 10 of the ergonomics standard,the ISO
self. Graphic design may be utilized to support its usability.
9241.
Seven dialogue principles are:
User interface design requires a good understand-
ing of user needs. There are several phases and processes
in the user interface design, some of which are more demanded upon than others, depending on the project.
»» Suitability for the task: dialogue is suitable for a
task when it supports the user in the effective and efficient
completion of the task.
»» Self-descriptiveness: dialogue is self-descriptive
»»Functionality requirements gathering
– assembling a list of the functionality required by the
when each dialogue step is immediately comprehensible
system to accomplish the goals of the project and the
through feedback from the system.
potential needs of the users.
»»
»»User analysis – analysis of the potential users of
the system..
Typical questions involve:
»» Controllability: dialogueis controllable when the user
is able to initiate and control the direction and pace of the
interaction until the point at which the goal has been met.
»» Conformity with user expectations: dialogue conforms with user expectations when it is consistent and cor-
Q What would the user want the system to do?
responds to the user characteristics, such as task knowl-
O How would the system fit in with the user's nor-
edge, education, experience.
mal workflow or daily activities?
»» Error tolerance: dialogue is error tolerant if de-
O How technically savvy is the user and what simi-
spite evident errors in input, the intended result may be
lar systems does the user already use?
achieved.
O What interface look & feel styles appeal to the
user?
• Information architecture – development of the process
and/or information flow of the system.
• Prototyping – development of wireframes, either in the
form of paper prototypes or simple interactive screens.
»» Suitability for individualization: dialogue is capable
of individualization when the interface software can be
modified to suit the task needs, individual prefer [