Wilson Chen developed foundational Activity Question data models for the uwblueprint/extend-a-family repository, focusing on supporting both multiple-choice and multi-select question types. He designed and implemented interfaces, schemas, and validation logic using TypeScript, Node.js, and Mongoose, ensuring that options and correct answers are structured per question type. This refactor improved data integrity and maintainability by aligning the data structure with evolving product requirements. Although no bugs were fixed during this period, Wilson’s work established a robust backend foundation that enables future extensibility for additional question types, reflecting a thoughtful approach to scalable data modeling and backend development practices.