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Identify a range of usability problems that can occur in a (JSR note: "particular") system.


Teaching Note:

S/E These should be related to the systems.

Systems include ticketing, on-line payroll, scheduling, voice recognition, systems that provide feedback.


Sample Question:


JSR Notes:

First of all, remember that "usability" means how does the technology or system suit everybody, and "accessibility" is particularly referring only to those with some sort of disability.

And do note that this assessment statement is aimed at "a" (as in, a specific) "system.

Here's a fresh example: Food distribution system Big C Grocery Store door-to-door delivery of groceries and everything else they sell

You need to consider the full range of usability problems that can occur in the system:


Specfic Examples (mentioned in the Teaching Note)

Here are three of the specific situations in more detail, as collated at Mr Laorunal's website:


Online payroll

With an online payroll system, the inputs are: Employee identification code, hours worked, and rate of pay (e.g. $25 per hour).

And the outputs from a payroll system are: A printed payslip, and a pay cheque, or an payment directly into the employee's bank account .

Potential usability issues include:


Voice Recognition

Two examples if situations in which voice recognition can be used are security login with Siri etc. on iPhones etc.

Potential usability issues include:


Other Examples

For the last three examples from the Teaching Notes, I'll put a couple of issues, but be prepared yourself to come up with a couple more:



For example, scheduling of courses at a school, the input of student choices is slow and prone to errors.

Systems that Provide Feedback

For example an ATM, or on-line purchasing, like at Amazon.com.

Potential usability issues include:


CompSci2014.wikispaces.com **



Jose: "usability" and "ease of use" are interchangeable.

Usability is both hardware and software.