Graphical system advantages
The
success of graphical systems has been attributed to a host of factors. The
following have been commonly referenced in literature and endorsed by their
advocates as advantages of these systems.
Symbols
recognized faster than text: symbols can be recognized faster and more accurately than text. An example
of a good classification scheme that speeds up recognition is the icons. These
icons allow speedy recognition of the type of message being presented.
Faster
learning: a graphical, pictorial representation aids learning, and symbols can also be easily learned.
Faster
use and problem solving: Visual or spatial representation of information has been found to be easier to retain
and manipulate and leads to faster and more successful problem solving.
Easier remembering: Because
of greater simplicity, it is easier for casual users to retain operational concepts.
More
natural: symbolic displays are more natural and advantageous because the human mind has a powerful image
memory.
Fewer
errors: Reversibility of actions reduces error rates because it is always possible to undo the last step. Error
messages are less frequently needed.
Increased
feeling of control: The user initiates actions and feels in control.
This increases user confidence
Immediate
feedback: The results of actions furthering user goals can be seen immediately. If the response is not in
the desired direction, the direction can be changed quickly.
Predictable
system responses: Predictable system responses also speed learning.
Easily reversible actions: This ability to reverse
unwanted actions also increases user confidence
More
attractive: Direct-manipulation systems are more entertaining, cleverer, and more appealing.
May
consume less space: Icons may take up less space than the equivalent
in words but this is not the case
always.
Replaces
national languages: Icons possess much more universality than text and are much more easily comprehended
worldwide.
Easily
augmented with text displays: Where graphical design
limitations exist, direct-manipulation
systems can easily be augmented with text displays. The reverse is not true.
Low
typing requirements: Pointing and selection controls, such as the
mouse or trackball, eliminate the
need for typing skills.
Related Topics
Privacy Policy, Terms and Conditions, DMCA Policy and Compliant
Copyright © 2018-2023 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.