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ASSIGNMENT
PROGRAM BSc
IT
SEMESTER SIXTH
SUBJECT CODE & NAME BT9302, Human Computer Interface
CREDIT 4
BK ID B1364
MAX. MARKS 60
Answer
all the questions
Ques 1 List all the principles of designing
graphical user interface. Explain any eight of them.
Ans Principles of Graphical User Interface
Graphical
user interfaces (GUIs) have become the user interface of choice. Yet despite
the GUI's popularity, surprisingly few programs exhibit good interface design.
Moreover, finding information explaining
Ques 2 Explain the phases in determining basic
business functions.
Ans In order to
determine basic business functions one as know basic models.Understanding these
modelsis necessary for designing the interface. There are four phases in
interface design, first; understanding the user's needs, second; understanding
users mental model, third;
Ques 3 Explain the uses of toolbars and message
boxes in designing windows.
Ans Windows Components
Windows
are enclosed, rectangular areas of the display screen that can contain text,
graphics and widgets.
Ques 4 Explain Goal-Operation-Methods-Selections
(GOMS) user interface design approach. List advantages and disadvantages of it.
Ans GOMS is a family
of user interface modeling techniques. Goals, Operators, Methods and Selection
rules are Input for this approach. This approach is used various qualitative
and quantitative measures,
Ques 5 Briefly explain the features of different
keyboard layouts. Describe the features of keys.
Ans In computing, a
keyboard is typewriter keyboard, which uses an arrangement of buttons or keys,
to act as mechanical levers or electronic switches. After punch cards and paper
tape, interaction via teletype-style keyboards became the main input device for
computers. This section discusses the
Ques 6 Write a note on joystick and graphic tablet
device based controls.
Ans Screen Based
controls, often simply called controls and sometimes called widgets. By
definitions, they are graphic objects that represent the properties or
operations of other objects. This unit gives the details about operable
controls, layout of controls, error messages, alerts and
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