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Total Marks: 20


Due Date:  11-11-2019

Lecture Included 1 to 7 


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Guys.... plzzzz help me how to do this question. give some idea

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

(b) Features

(c) Solved Problems

Input Device(s)





Output Device(s)








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”.


Use a word processor to update a paragraph and note your actions, goals, sub-goals and operators.

Please solution bta den.

@M.tariq Malik

just idea how to make the solution just watch it.


below link





AOA sir how can we say that live video call help them ?

they are not able to see anything?

Good Question, well i think the Google text to speech Engine will be more helpful as a output device rather then input device and google assistant will be more helpful as a input device.


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