Bendix/King KLN 89B General Aviation GPS System Meghan Myers.
5
Bendix/King KLN 89B General Aviation GPS System Meghan Myers
Transcript of Bendix/King KLN 89B General Aviation GPS System Meghan Myers.
Bendix/King KLN 89B General Aviation GPS System
Meghan Myers
Initial Usability Problems
Subtle indication of being off course
Task Analysis
Three tasks Setting a location for direct-to navigation Searching Airport Directory Entering a flight plan
Correct Actions include Using knobs and buttons for multiple actions Entering and exiting modes Viewing multiple screens on the same page
User Testing
Four users Two MHCI students Two pilots
Two types of problems Page indicator goes unnoticed Text entry mode confuses users
SolutionKnobs used only to navigate between and within pages(no more text entry or moving the cursor)
Text Entry is handledby alpha-numeric keys(no mode required)
Current page is indicated by its label(not a bar on the screen)
Cursor is moved via its own buttons,positioned close to text-entry keys
