Activity Planning Software Tool


Arizona State University


Nickel Class (2020 – 2021)


Eric Crapnell, Engineering Management
Kendall Timothy, Computer Science
Taylor Gordon, Computer Science
Tyler Neerings, Computer Science
Maxwell Buss, Computer Science
Alexander Mills, Computer Science


Shaheer Khan, Mission Planning and Sequencing Team Lead, Jet Propulsion Laboratory
Chris Lawler, Planning & Execution Systems Engineer, Jet Propulsion Laboratory


Dr. Helen Chavez, Lecturer, School of Computing, Informatics, and Decision Systems Engineering, ASU
Dr. Joe Juarez, Lecturer, School of Computing, Informatics, and Decision Systems Engineering, ASU


Science Planning team members from the Psyche mission at NASA’s Jet Propulsion Laboratory (JPL) requested the capstone team to design and build a software tool to help science planners visually ‘diff’ two plans. In other words, given two plans (time-lists of activity instances), the tool would show science planners, in some way, a timeline with visual indicators of how activities moved (or were added/removed) between one version of the plan and another. The student team implemented a solution, guided by direct feedback from JPL science planners. The Psyche science planners provided sample input files as well as sketches of what would be useful for the final diffs to look like.

Showcase video

This work was created in partial fulfillment of Arizona State University Capstone Courses “IEE 485”, and “CSE 485”. The work is a result of the Psyche Student Collaborations component of NASA’s Psyche Mission ( “Psyche: A Journey to a Metal World” [Contract number NNM16AA09C] is part of the NASA Discovery Program mission to solar system targets. Trade names and trademarks of ASU and NASA are used in this work for identification only. Their usage does not constitute an official endorsement, either expressed or implied, by Arizona State University or National Aeronautics and Space Administration. The content is solely the responsibility of the authors and does not necessarily represent the official views of ASU or NASA.