kevin toy, m.a., intern lz technology usability testing and analysis facility (utaf) nasa johnson...
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Kevin Toy, M.A., InternLZ TechnologyUsability Testing and Analysis Facility (UTAF)NASA Johnson Space Center
30 July 2012 1
2012 Summer Internship
Overview
21 September 2012 2
About Me• Background• Education• Interests
Starting off• Training• Literature review
Projects• Habitability DRP• Displays & Controls Interfaces DRP
About me
Background• Born and raised in Houston, TX• 26 years old
Education• B.A. Psychology, Southwestern University (2008)• M.A. Applied Cognitive Psychology, University of Houston – Clear Lake (2012)
Hobbies• Soccer, Running, Golf, Bowling, Disc Golf, Table Tennis• Hiking, camping, travelling• Reading, watching movies • Attending art festivals/exhibits, concerts
Interested in:• Usability testing• User experience research• Human Factors Engineering• HCI
30 July 2012 3
Starting Off
Getting Situated• Email, Computer, Phone• NDC• SATERN log in• Etc.
Online Training• BCiWeb, SATERN, CITI Basic/Refresher course
Reviewed background materials• SHFE Hab evidence report• Extravehicular Activity (EVA) CONSUMABLES REPORT
30 July 2012 4
Habitability DRP – NEEMO Study results
Supervisor: Sherry Thaxton Human Factors & Habitability Assessment Tool
• Transcribed audio and video reports from underwater habitat• Took notes and observations from reports• Reports were evaluating tools that enable crewmembers to • record human factors and habitability observations near real-time
- iSHORT (Space Habitability Observation Reporting Tool) - Looxcie- iPad
30 July 2012 5
Net Habitable Volume Summer Workshop - Deliverables
Assisted in the development/organization of a spreadsheet of NHV driving tasks from various resources• EX: Exercise activities, nominal ingress/egress, suit donning/doffing, food prep, etc.• Consolidates list of expected mission tasks from various studies and guidelines• Captures additional key information – e.g., does it need a dedicated space?
Assisted in the development/organization of a metrics list• Consolidates metrics/methods used in previous studies that may be useful in assessing
whether a volume is adequate• Captures information such as appropriateness for use during conceptual design, pros and
cons of the method, etc. Assisted in the development of Process Flow for evaluating a
habitat/vehicle volume• Provides high-level process flow chart, annotated with details related to the process, based
on existing process documents• Adds emphasis to long-duration mission concerns• Adds emphasis to necessary inputs such as ConOps details or assumptions
30 July 2012 6
NHV Workshop (07/30/12 – 07/31/12)
Assisted in coordination of workshop
Took notes and audio recording of NHV splinter group
Incorporated additional feedback from workshop into deliverables
Drafted outbrief PowerPoint presentation
30 July 2012 7
Displays & Controls Interface DRP
Supervisor: Aniko Sandor Developed a conceptual prototype for new Extravehicular activity (EVA)
suit display• Goal: Develop visual design to gather feedback on data that should be included
on the display with regards to consumables, how the data should be grouped, how the data should be displayed.
Focused primarily on consumables data (Oxygen, Battery, Carbon Dioxide & Water), but other important information also considered:• EVA time and time on task• Suit status data (suit pressure, suit temp, fan speed, etc.)• Communication status• Crew member (“Buddy”) consumables status• Caution & Warning (C&W) messages• Table of Contents for procedures• Electronic procedures
30 July 2012 8
EVA Consumables Display Prototype
First prototype developed based on previous studies and reports:• NASA. (2009). Orion Program Display Format Standards Document (Baseline, CxP
72242). Houston, Texas: Lyndon B. Johnson Space Center.• Sandor, A., Archer, R. D., & Boyer, J. (2011). Extravehicular activity consumables.
Houston, TX 77058: NASA, Lyndon B. Johnson Space Center.
30 July 2012 9
EVA Consumables Display Prototype
Second iteration based on feedback from HFE on the Displays & Controls Interface team throughout several group meetings• Formatting changes• Additional information added• Table of Contents page added
30 July 2012 10
EVA Consumables Display Prototype
30 July 2012 11
Electronic Procedures page (eProc) with two viewing configurations:• Default “Task” view (left)• “Figure” view (right)
EVA Consumables Display Prototype
Two alternative layouts developed• (Left) consumables data displayed in squares, status information in right column• (Right) consumables data displayed in columns
30 July 2012 12
Discussions With Subject Matter Experts
Discussions with Subject Matter Experts• Met with five Subject Matter Experts to get feedback on the displays• Discussion sessions lasted approximately 1 hour, held in the Usability lab• Discussed information included, organization of the information and grouping of
information
Recommendations included:• Grouping oxygen, carbon dioxide and metabolic rate• Include “Mission time”• Map with location of habitat and crew members• Present consumables data graphically • Distance measures data (i.e. distance from habitat)• Type of data displayed should change according to mission ops (e.g., suit port
info, rover status info)• Include recording status data (Video, Audio, Pictures)
30 July 2012 13
Iterated Prototype Based on Feedback
30 July 2012 14
Displays & Controls Interfaces DRP – Next Steps
Integrate prototype with Legaci metabolic rate advisor• Provide realistic consumables data for EVA
Collaborate with Glenn Research Center (GRC) to evaluate prototype on various hardware displays• Head mounted display• Cuff display
Conduct studies to examine different control methods• Touch• Voice• Cursor control
Continue iterations of design based on future studies
30 July 2012 15
Multidimensional icon study
Supervisor: Aniko Sandor Team members: Shelby Thompson, Ron Archer, John Pace Assisted in development of Multidimensional icon study Ran 28 participants in study
• Goal: Investigate effectiveness of different representations of EVA consumables data for a team of four crew members
Next step: Data analysis
30 July 2012 16