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Consumer products



The following is a list of Consumer products (electronics & appliances)

Washing Machine
Dish washer
Standalone Digital Camera (Not the Phone Camera)
Game Console (e.g., PS, Xbox, Wii)
AC Unit in house or car
Portable music player/ iPod
Home Stereo or home theatre system
Car navigation system/GPS or handheld GPS
Car stereo system
Non smart phone
Telephone answering machine
Scientific Calculators (e.g. TI-84)

Note: You can choose another product- please discuss with your teacher first.
You cannot evaluate a website, an app nor a software.

Choose a product from the above list.

Each student should have a different product.
Product: _______________________________                      Make:__________

Take clear 4 photographs of the interface. The photograph should provide some explanation related to the usability and/or design criteria. Additionally, they should be clearly labeled and numbered.


Describe the interface using clear English(100-200 words):

Write the appliance’s name, make and model.
Describe the purpose of the device
Describe the tasks and how they are carried out.


Write a well formatted report

cover page: Case Study for consumer product’s name, student’s name & id, course number and name, section, teacher’s name, date and a picture
table of contents
page numbering
start every section on a new page.


Conduct a Hierarchical Task Analysis and draw the HTA diagram (roughly 5 diagrams horizontally and 4 levels deep) and include it in your report.

Clearly number and label each task and specify preconditions, plans, options and repetitions.
Use Word’s smart artàhierarchy for this task.

Evaluate the Interface using the criteria presented in class. These are the following

Usability – effectiveness, efficiency, safe to use, memorability, learnability
Design criteria – visibility, feedback, constraints, consistency, affordances


How would you modify the interface to improve the design?

List at least 3 suggestions in your report with reasons why.


Grading Criteria
Student Name: ______________________


Report Structure
Cover page:
Case Study for consumer product’s name, student’s name &  id,
course number & name, section, teacher’s name, date & a picture

Table of contents (1pt)
Introduction (2pt),
Page numbering (1pt),
Start sections on a new page (1pt)

Document Formatting and Writing Style

Interface Description
Specification Description (15 pts)
state the make, model, purpose and task description (10)
writing Style (5)

   4 interface Photographs. (1pt)
– Sketch/diagram/paper prototyping(1pt)
with explanation on usability & design criteria.  (2pt)
The Photographs should be clearly labeled and numbered.(1pt)

HTA Semantics
All Tasks are covered (12)
logically placed in the HTA diagram: (12)

a. Activities are ordered left to right (1 pts)
b. All tasks and subtasks must be numbered correctly (3 pts)
c. A line under a task = there are no more subtasks (2 pts)
d. All tasks must be labeled clearly using a verb (3 pts)
e. Tasks that are optional can have the letter “O”  (3 pts)
f. Tasks that are repeated can have the letter “*”  (2pts)
g. Preconditions go in the top left (if needed) (1 pts)
h. Plans can be added under tasks. (1 pts)

Usability Criteria (5 Criteria, 2 points each, Total 10 Points)
effectiveness, efficiency, Safe to use, memorability, learnability

Design Criteria (5 Criteria, 2 Points each, Total 10 Points)
visibility, feedback, constraints, consistency, affordances

Modification Suggestions & Rationale
Modification Suggestions:
1 Suggestion è1.5 points;
2 Suggestion3 è3.0 points;
3 Suggestions è5 points

Rationale for Modification
no rationale or unclear rationale è 0 Point
rationale clear but not compelling based on Usability or Design criteria è (1-3 points)
rationale clear and based on Usability/Design Criteria and may also account for User Experience è (4-5 points)



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