TABLE 4.

Example of a Task Analysis: Health Management/Disease Prevention for Breast Cancer (System C)

Subtasks/Steps	Sensory/Perceptual Demands	Cognitive Demands	Demands
Access health information	Vision and perceptual recognition: Locate/recognize “See Your Summary” button on page	Selective attention, comprehension, working memory, long-term memory: Discriminate among buttons on tool bar Read and comprehend labels on buttons on tool bar Remember location of your summary health information Select and click on button Understand and remember basic mouse and window operations	Fine motor skills/dexterity: Cursor positioning Scrolling Clicking
Access information for cancer screenings	Vision and perceptual recognition: Locate/recognize “Cancer Screenings” box on page	Selective attention, text literacy/comprehension, working memory, long-term memory: Discriminate among information on screen and ignore irrelevant information Read and comprehend text on screen Remember and comprehend that box labeled “Cancer Screenings” has needed information Understand and remember basic mouse and window operations	Fine motor skills/dexterity: Cursor positioning Scrolling Clicking
Identify breast cancer screening test requirements information and information related to due dates	Vision and perceptual recognition: Locate the needed information on the page	Selective attention, text literacy, comprehension, basic numeracy, working and long-term memory: Ignore irrelevant information Read and understand the names of the tests Read and understand the concepts of due date, status, and next steps Remember the meaning of color codes Identify time and date of due date Understand and remember basic mouse and window operations, e.g., that information in light blue is clickable
Find and interpret guidelines related to mammograms	Vision and perceptual recognition: Locate the link related to mammogram Locate the information related to guidelines within the page	Selective attention, text literacy, comprehension, computational numeracy, working and long- term memory: Ignore irrelevant information and discriminate among cancer screening links Read and understand the labels of links Read and understand the text related to breast cancer screening and guidelines Understand guidelines on the basis of a woman’s age Remember how to return to summary page Understand and remember basic mouse and window operations	Fine motor skills/dexterity: Cursor positioning Scrolling Clicking