CS408 - Human Computer Interaction Assignment No.1 Semester: Fall 2019
Assignment No. 1
Semester: Fall 2019
CS408 – Human Computer Interaction
Question no :1 (15 Marks )
Consider the following scenario:
“Objects Identifier system (a mobile application) is designed to help the blind and visually impaired users to identify objects they encounter in their daily lives (e.g. Cup, Glass, plant or any object).”
You are required to:
a) Choose a suitable combination of input and output devices to best support the intended interaction.
b) What should be the features of the input and output devices that help the blind people to work on the given system?
c) Explain the major problems that the input and output devices solve.
Note: You are supposed to describe at least one input and one output device for the intended interaction.
Solution Table:
Intended
Interaction: Objects Identifier system for
blind users
|
|||
(a) Device Name
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(b) Features
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(c) Solved Problems
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Input Device(s)
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Google text-to-speech
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Text to speech
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Blind users can easily write
anything through text to speech.
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Output Device(s)
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Be My Eyes
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Live video call
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Be my eyes is a
free app that connects blind and low vision people with sighted volunteers
and company representatives for visual assistance through a live video call.
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Question no :2 (05 Marks )
Identify the goals, sub-goals and operators involved in given problem
“Open a File name (HCI-Notes) from D. drive and Update the second paragraph of page no. 20 in a file”.
Answer:-
Imagine
you have a document open and you are at some capricious position within it. You
furthermore necessaries to make a decision which operator are accessible and
what their pre-conditions are:
Operator
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Preconditions/ actions
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Result
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Update paragraph
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Cursor at edit of paragraph
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Update paragraph
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Move_to_ paragraph
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Cursor anywhere in the document
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Cursor moves in document to start of the next paragraph
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Move_to_start
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Cursor anywhere in the document
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Cursor at start of the document
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Goal:
Update second paragraph in document.
Looking at the operators a real one to make your mind up this breathing in/wish/wishing is update paragraph which has the pre-condition 'cursor at edit of paragraph'
We therefore have a new
sub-goal: move to paragraph. The pre-condition is 'cursor anywhere in document' (which we can meet) cursor moves in document to start of the next paragraph .
We set up a new sub- goal, move to start, with pre-condition 'cursor anywhere in document' and result 'cursor at start of document'. We can then apply move to paragraph and finally update paragraph.
Update second paragraph in document.
Looking at the operators a real one to make your mind up this breathing in/wish/wishing is update paragraph which has the pre-condition 'cursor at edit of paragraph'
We therefore have a new
sub-goal: move to paragraph. The pre-condition is 'cursor anywhere in document' (which we can meet) cursor moves in document to start of the next paragraph .
We set up a new sub- goal, move to start, with pre-condition 'cursor anywhere in document' and result 'cursor at start of document'. We can then apply move to paragraph and finally update paragraph.
Download Link is Here:
CS408 - Human Computer Interaction Assignment No.1 Semester: Fall 2019
Deadline:
The deadline to submit your assignment is 11th November 2019. Your assignment must be submitted within the due date through VULMS. No assignment will be accepted through email after the due date.
