IST 331 Quiz 3 There are two questions on this quiz. Please be sure to read the
ID: 3747570 • Letter: I
Question
IST 331 Quiz 3
There are two questions on this quiz. Please be sure to read the directions carefully. Then complete and submit the quiz by uploading your document to the Chapter 3 Quiz.
For question #1, type your answer below it.
For question #2, improve the structure of the text starting with “Ten Usability Heuristics by Jakob Nielsen” using MS Word features and describe why each change is an improvement using material from chapter 3 of Johnson’s book.
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Why is structure in information presentation so important to human-computer interaction?
Improve the structure of the following text. Then describe the changes you made and explain each.
Ten Usability Heuristics by Jakob Nielsen
These are ten general principles for user interface design. They are called "heuristics"
because they are more in the nature of rules of thumb than specific usability guidelines.
Visibility of system status
The system should always keep users informed about what is going on, through
appropriate feedback within reasonable time.
Match between system and the real world
The system should speak the users' language, with words, phrases and concepts
familiar to the user, rather than system-oriented terms. Follow real-world
conventions, making information appear in a natural and logical order.
User control and freedom
Users often choose system functions by mistake and will need a clearly marked
"emergency exit" to leave the unwanted state without having to go through an
extended dialogue. Support undo and redo.
Consistency and standards
Users should not have to wonder whether different words, situations, or actions
mean the same thing. Follow platform conventions.
Error prevention
Even better than good error messages is a careful design which prevents a problem
from occurring in the first place. Either eliminate error-prone conditions or check for
them and present users with a confirmation option before they commit to the action.
Recognition rather than recall
Minimize the user's memory load by making objects, actions, and options visible. The
user should not have to remember information from one part of the dialogue to
another. Instructions for use of the system should be visible or easily retrievable
whenever appropriate.
Flexibility and efficiency of use
Accelerators -- unseen by the novice user -- may often speed up the interaction for
the expert user such that the system can cater to both inexperienced and
experienced users. Allow users to tailor frequent actions.
Aesthetic and minimalist design
Dialogues should not contain information which is irrelevant or rarely needed. Every
extra unit of information in a dialogue competes with the relevant units of
information and diminishes their relative visibility.
Explanation / Answer
Why is a structure in information presentation so important to human-computer interaction?
It is much important to represent the information in a structured way. The computer understands only 0's and 1's and it would be difficult to interact with the computer for us if the information is being represented in the same way. Therefore, the information when it comes to human, it is being translated and transformed and then goes back to the computer it is again translated and transformed.
Improve the structure of the following text. Then describe the changes you made and explain each.
The progress or changes or functions of the system should be presented to the user so that the user won't be in dilemma what is going on.
For example, System is booting and applying configuration settings.
When interacting with users from the computer, the real-time conventions should be used rather than technical conventions.
Example: Instead of BSOD saying something corrupted, you can inform the user what happened.
Users should be restricted in accessing the critical functions of the system. Appropriate warnings should be displayed if they try to.
The standard conventions must be used irrespective of multiple scenarios that might belong to the same situation.
Prevention is better than cure. Appropriate warning alerts should be displayed even if the user tries to access and modify critical functions.
The processes should be managed efficiently.
Irrelevant information shouldn't be displayed to the users.
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