Catherine Chung developed UI prototype documentation for the SE4CPS/PlantWaterSystem repository, focusing on outlining the structure and flow of key application screens such as Welcome, Home, Login, Plant detail, and Plant detail edit. She used Markdown to create detailed README updates, providing both visual placeholders and descriptive guidance to support future UI/UX development. Her work emphasized clear documentation practices, ensuring that design concepts were well-articulated for upcoming implementation phases. While the contribution was limited to a single feature over one month, Catherine demonstrated proficiency in technical writing and documentation, laying a solid foundation for subsequent design and engineering collaboration within the project.