During January 2025, Jo Jang focused on developing and refining an accreditation data model within the MarianoEPN/ProyectoDisenio repository. They designed and introduced an initial database schema, acreditacionBDD, which included tables for careers, subjects, and learning outcomes, ensuring referential integrity through careful database design and SQL scripting. Jo also implemented schema changes and created a dedicated implementation script to streamline deployment. To maintain repository clarity, they removed obsolete scripts and documented the deprecation of the accreditation schema, supporting future architectural decisions. Their work demonstrated a methodical approach to database management, balancing prototyping with code hygiene and maintainability throughout the process.