Components of Usability. Ethnity UX Research Company Visit: www.ethnity.com

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USABILITY SERIES:
WHAT ARE THE
COMPONENTS
OF USABILITY
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Usability is a
quality attribute
that assesses
how easy user
interfaces are to
use.

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There are
6 components
of Usability:

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Useful:
Does the product
do something
that people need
to get done?

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Efficient:
Does the product
do it with a
reasonable
amount of time &
effort?

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Effective:
Does the product
behaves in the
way that users
expect it to? Does
it gets the job
done?

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Satisfying:
Is the product
delightful?
What are the
user’s perceptions
and opinions of
the product?

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Learnable:
Can people
figure out how
to use the
product?

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Accessible:
Is the product
accessible to get
the job done? Is
it usable for
people with
disabilities?

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On the web,
Usability is the
necessary
condition for
Survival.
References:
1. Nielson Norman Group
2. Don’t make me think- book by Steve Krug
3. Handbook of Usability Testing -book by
Jeff Rubin & Dana Chisnell

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