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Human Centered Technologies Analysis Tool. Victor Riley. June 29, 2005. User Interaction Research and Design, Inc. Point Roberts, WA. Project team. Dr. Tom Raslear, FRA Stephen Reinach, Foster-Miller Kurt Bruck, Foster-Miller Dr. Victor Riley, UIR&D. Background.
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Human Centered Technologies Analysis Tool Victor Riley June 29, 2005 User Interaction Research and Design, Inc. Point Roberts, WA
Project team • Dr. Tom Raslear, FRA • Stephen Reinach, Foster-Miller • Kurt Bruck, Foster-Miller • Dr. Victor Riley, UIR&D
Background • Technology and systems becoming more complex • HF issues coming to the fore • FRA: new rule on processor-based control systems • FAA: new rule on design-related human error • Too many problems, not enough regulators with HF expertise
FRA Human Centered Technologies Tool • FRA wants tool to help Office of Safety personnel evaluate systems and UIs for potential human factors problems • Current status: beta version
Design related error • Fitts and Jones (1947): • Substitution errors • Adjustment errors • Forgetting errors • Reversal errors • Unintentional activation errors • Inability to reach a control
Design related error • Fitts and Jones (1947): • Substitution errors • Adjustment errors • Forgetting errors • Reversal errors • Unintentional activation errors • Inability to reach a control
More specifically: • Controls: • Violation of cultural expectations • Inconsistencies within the interface • Adjacent controls with conflicting functions • Protections • Hidden functions • Mode errors • Separation • Appropriate placement for importance • Appropriate selection for number and type of functions • Color
More specifically: • Displays: • Violation of cultural expectations • Inconsistencies within the design • Adjacent displays with conflicting functions • Color (appropriateness, contrast) • Appropriate placement for importance • Control/display relationships • Feedback • Labels • Function keys
More specifically: • Automation: • Potential situation awareness gaps due to combinations of automation SA parameters controls functions operator displays SA parameters
More specifically: • Automation: • Potential situation awareness gaps due to combinations of automation SA parameters controls automation functions operator displays SA parameters
More specifically: • Multiple interfaces: • Compare two systems/interfaces for inconsistencies (interface and automation) • Interoperability • Mixed-fleet flying • Differences training • System 1 • type • location • appearance • motion • logic • System 2 • type • location • appearance • motion • logic Function
Tool role • Inform, not replace, regulator decision-making • Plan to make tool available to industry after FRA acceptance
Tool input • Upload picture of interface for guide • Designate types and positions of controls and displays • Define appearance of controls and displays • Define control and display functions • Identify SA parameters associated with controls and displays • Define automation
Beta version • Will also be able to analyze some aspects of graphical user interfaces
Final version • Will also be able to analyze graphical user interfaces and function keys, dual interfaces, automation • conflicting function types assigned to same key on different screens • same function assigned to different keys on different screens
Schedule • Alpha test in November of last year • Beta test in July • Final version in 4Q 2005