Describe the benefits and disadvantages of each type (‘live’ computational and voice-only) with
respect to Nielsen’s five quality components of usability1. [10 points]
2. What are benefits and disadvantages of each type when making an HCI for speakers of different
languages using the same HCI at the same time? [10 points]
3. What are the benefits and disadvantages of each type when making an HCI for persons with
disabilities? In your answer consider many different disabilities. [10 points]
4. Construct a usability questionnaire specifically for HCIs using virtual assistants. [10 points]
5. Describe a process you would use to gather data and analyze results using your usability
questionnaire for HCIs using virtual assistants. [10 points].
6. Suppose that Sheetz is considering replacing its in-store M.T.O2 touch screen devices and the
current navigation by selection with a virtual assistant
.
a. Describe the benefits and disadvantages of each type for this HCI [10 points]
b. For the type that you identify having the most benefits, describe in detail how a person
would navigate through the menu and place a M.T.O food order. [15 points]
7. Suppose that you are designing an HCI for a language learning tool3 and you want to replace mouse
and keyboard navigation with a virtual assistant
.
a. Describe the benefits and disadvantages of each type for this HCI [10 points]
b. For the type that you identify having the most benefits, describe in detail how a person
would navigate through the HCI for a language learning tool (using at least the navigation
you can observe in the Mango Languages “How It Works” module). [15 points]
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