CS408 Human Computer Interaction Assignment No.1 Solution Spring Semester 2013

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[SIZE="3"]CS408 Human Computer Interaction Assignment No.1 Solution Spring Semester 2013[/SIZE]


Human computer Interaction (CS408)
Assignment # 1
Total marks = 10
Deadline: 29-04-2013

Please carefully read the following instructions before attempting the assignment.
Rules for Marking
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 The submitted assignment does not open or file is corrupt.
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1) You should concern recommended books to clarify your concepts as handouts are not sufficient.
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3) You are advised to upload your assignment before Due date.
4) This assignment file comprises of Two (2) pages.

Important Note:
Assignment comprises of 10 Marks. Note that no assignment will be accepted after due date via email in any case. Hence, refrain from uploading assignment in the last hour of the deadline, and try to upload Solutions at least 01 day before the deadline to avoid inconvenience later on.
For any query please contact: CS408@vu.edu.pk
Statement:

Consider a fully automatic Car System, which is used by the user in order to perform different tasks related to car usage. Let’s take some part of this system for our assignment in which driver uses only three modules i.e. “open the appropriate door”, “start the car” “switch off car” and finally “close the door”.
For a moment, let’s suppose there is a naïve user of this fully automated car system, who wants to go through this whole process. He has a remote control in his hand. Remote control consists of control panel. Every button in control panel has some specific functionality, where numbers of buttons are displayed labeled; “1”, “2”, “3” , “4” along with “Door Open” & “Door close”, “Switch on” & Switch off” etc. In another panel guidelines are given about how to handle the Car.
Before going through all discussed stages of this system, he focuses on the remote control buttons and press “1” then presses another button, “Door open”, he finds that the driving seat door has opened up. He sits there and press “Door Close” button. Then, he again thinks for a moment and press “Switch on” button to start the car. He finds that car in now in active state (started). He drives the car and after some time reaches at desired location. Finally he presses “Switch off” button to deactivate (switch off) the car. He again opens up respective door by following the same process as discussed above and comes out of the car.
Question:

Map the human processor model and all its parts (Components) that come into play, on above scenario.
Note: Before attempting the assignment, go through the Human processor model and all its parts.

[raya xaris]

Guyz n Gulz...., Any idea ab8 the Solution.......!!!!

[Vuhelper]

Idea Solution:

Human processor model or MHP (Model Human Processor) is a cognitive modeling method used to calculate how long it takes to perform a certain task. Other cognitive modeling methods include parallel design, GOMS, and KLM (human-computer interaction).
The human processor model uses the cognitive, perceptual, and motor processors along with the visual image, working memory, and long term memory storages. A diagram is shown below. Each processor has a cycle time and each memory has a decay time. These values are also included below. By following the connections diagrammed below, along with the associated cycle or decay times, the time it takes a user to perform a certain task can be calculated
How To Calculate
The calculations depend on the ability to break down every step of a task into the basic process level. The more detailed the analysis the more accurate the model will be to predict human performance. The method for determining processes can be broken down into the following steps.
Write out main steps based on: a working prototype, simulation, step by step walk-through of all steps
Clearly identify the specific task and method to accomplish that task
For each final step identify sub-levels down to a basic process (in the diagram or chart below)
Convert into pseudo code (writing out methods for each step)
List all assumptions (will be helpful as multiple iterations are completed)
Determine time of each operation (based on the table below)
Determine if operation times should be adjusted (slower for elderly, disability, unfamiliarity, etc.)
Sum up execution times
Iterate as needed and check with prototyping if possible