Eunbi Kim developed the initial architectural design for a To-Do List Management Program in the eunbi-kim/24_2_W_SeProj repository, focusing on establishing a clear system structure before implementation began. Using diagramming skills and XML, Eunbi created a comprehensive design diagram that mapped out the program’s components and data flows, providing a foundational reference for future development and team onboarding. The work emphasized maintainable documentation and repository organization, ensuring that subsequent engineering efforts would be well-aligned with project goals. While no bugs were addressed during this period, the depth of the architectural planning laid a solid groundwork for efficient feature development.