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Next Gen One Portal Usability EvaluationEach exercise device on the International Space Station (ISS) has a unique, customized software system interface with unique layouts / hierarchy, and operational principles that require significant crew training. Furthermore, the software programs are not adaptable and provide no real-time feedback or motivation to enhance the exercise experience and/or prevent injuries. Additionally, the graphical user interfaces (GUI) of these systems present information through multiple layers resulting in difficulty navigating to the desired screens and functions. These limitations of current exercise device GUI's lead to increased crew time spent on initiating, loading, performing exercises, logging data and exiting the system. To address these limitations a Next Generation One Portal (NextGen One Portal) Crew Countermeasure System (CMS) was developed, which utilizes the latest industry guidelines in GUI designs to provide an intuitive ease of use approach (i.e., 80% of the functionality gained within 5-10 minutes of initial use without/limited formal training required). This is accomplished by providing a consistent interface using common software to reduce crew training, increase efficiency & user satisfaction while also reducing development & maintenance costs. Results from the usability evaluations showed the NextGen One Portal UI having greater efficiency, learnability, memorability, usability and overall user experience than the current Advanced Resistive Exercise Device (ARED) UI used by astronauts on ISS. Specifically, the design of the One-Portal UI as an app interface similar to those found on the Apple and Google's App Store, assisted many of the participants in grasping the concepts of the interface with minimum training. Although the NextGen One-Portal UI was shown to be an overall better interface, observations by the test facilitators noted specific exercise tasks appeared to have a significant impact on the NextGen One-Portal UI efficiency. Future updates to the NextGen One Portal UI will address these inefficiencies.
Document ID
Document Type
Conference Paper
Cross, E. V., III
(Leidos, Inc. Houston, TX, United States)
Perera, J. S.
(NASA Johnson Space Center Houston, TX, United States)
Hanson, A. M.
(NASA Johnson Space Center Houston, TX, United States)
English, K.
(JES Tech Houston, TX, United States)
Vu, L.
(GeoLogics Corp. Alexandria, VA, United States)
Amonette, W.
(Houston Univ.-Clear Lake Houston, TX, United States)
Date Acquired
October 16, 2017
Publication Date
January 22, 2018
Subject Category
Man/System Technology And Life Support
Computer Programming And Software
Report/Patent Number
Meeting Information
Meeting: NASA Human Research Program Investigators'' Workshop (HRP IWS) 2018
Location: Galveston, TX
Country: United States
Start Date: January 22, 2018
End Date: January 25, 2018
Sponsors: NASA Headquarters
Distribution Limits
Public Use Permitted.
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