Evaluating a Space Vehicle’s User Interface for Peraton Corporation

Together with a team of 3 research assistants, I supported the design and development of the user interface using HCI methodologies, such as Discount Usability Evaluation, Prototype Design, Usability Testing Design, Remote Usability Testing, which contributed to the successful creation of a new user interface for finding relevant data and notifications for space vehicles’ operations.

Under a non-disclosure agreement. Some of the details in this project may be vague to protect the client's intellectual property.

Peraton Corporation
August 2019 — December 2019

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Problem Statement

Subject matter experts and satellite operators at Peraton had difficulty finding relevant data and notifications about space vehicles’ operations in the Search and Filter UI system.

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Methods

To figure out what struggles the users had when searching for notifications in the Search and Filter UI system, we decided to conduct usability testing sessions. First, we created two user personas for the subject matter experts and satellite operators and tasks with realistic scenarios for usability testing sessions.

We then identified usability issues in the interfaces by using Nielsen’s set of guidelines and cognitive walkthroughs. After that, we conducted two rounds of remote moderated usability testing sessions by evaluating a system’s functionality with 3 subject matter experts in space vehicle operations.

At the end, we created design recommendations using a wireframe design tool Balsamiq. We also wrote up a summary of the results, made recommendations, and submitted a final report to Peraton.

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Key Findings

Users had a problem adapting to the new search query language and differentiating between the two different search bars.

‍Applying the time filter to a search query was proven to be highly inefficient in its current form; it took the users multiple attempts of trial and error to find the correct way to apply the desired time.

There were numerous bug fixes that needed to be addressed before another usability session; for example: the sort function on columns would only work once, thus didn’t allow users to adjust or reset the sorting of a column until reloading the page.

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Deliverables

Overall, during the project, our team delivered 6 moderated usability testings sessions, 2 rounds of expert evaluations, 2 cumulative final reports and presentations.

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Final Thoughts

For this project, I worked collaboratively with other researchers from the iUX Academy at the University of Central Florida. During the project, I learned how to create proper realistic tasks for usability testing sessions and manage a team of research assistants.