The document discusses usability testing, which involves testing a product on representative users to identify usability problems, collect data on user performance, and measure satisfaction, in order to improve the product design through an iterative process before public release. It covers planning tests, conducting tests by having users complete tasks while observers take notes, and analyzing the results to identify issues and make design modifications. The goal of usability testing is to create products that are useful, efficient, engaging, error-tolerant, and easy to learn for the intended users.
The document discusses prototyping and provides guidance on creating paper prototypes. It emphasizes that prototyping is an iterative process used to gain feedback and insights. It recommends starting with storyboarding to plan interactions and convey the setting, sequence, and user experience. Tips are provided for creating paper prototypes quickly using various materials like paper, cardboard, and transparencies. The goal of paper prototyping is to test interaction flows at low cost before implementing a digital prototype.
43. Another Feature Search
Is there a red T in the
T T
display?
T
T T T T
According to feature T
integration theory, the
target should “pop out” T T T
No attention required T T T T
T
T
44. Another Conjunction Search
Is there a red T in the
display?
X X T
Target is defined by two
features: shape and color
T X T
T X T X
According to FIT, the features
must be combined and so X X
attention is required T
T T
Need to examine one by one
45. Similarity Theory
• Similarity between targets
– More shared features = more
and distracters is difficult to detect a target
important, not number of – Find the letter R
features to be combined
