This is personal study note Copyright and original reference: https://www.youtube.com/watch?v=moAXl6fvDO0&list=PLuHgQVnccGMDF6rHsY9qMuJMd295Yk4sa ================================================================================ concepts=conceptual_data_modeling(understood_project) ================================================================================ ERD=entity_relationship_diagram(understood_project) ================================================================================ inforamtion,group,relationship=ERD() see_the_real_world.use(inforamtion,group,relationship) ================================================================================ table=convert(from=ERD,to=table)