UML object diagram modeling a gamified educational platform with institution, teacher, student, and activity entities interconnected through performance tracking and avatar progression systems. The diagram instantiates core classes—Instituicao, Professor, Turma, Aluno, Atividade, Desempenho, Avatar, Fase, and Loja—showing real-world state including student levels, activity completion status, and performance scores. This architecture demonstrates how gamification mechanics (avatars, phases, shop) integrate with traditional educational structures (institutions, classes, assignments) to boost engagement and track learning outcomes. Fork and customize this diagram on Diagrams.so to design your own learning platform, adjust class relationships, or export as .drawio for integration into design documentation. The object diagram approach is ideal for validating domain models before implementing backend services or database schemas.