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This project involves creating an entity-relationship model (ERM) for an athletic championship information system. The model aims to enhance the management of competition results, expedite access to team and participant data, and correctly define entities, attributes, and relationships. Key requirements include categorizing teams by performance classes, managing disciplines by age and gender, and ensuring that racers can only be registered with one team. Additionally, statistics will store all racer performances, and points will be tallied towards a main ranking table.
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Databázové systémy I Athletic championship
Zadanie : • Vytvoriť entitne-relačný model pre IS majstrovstiev v atletike • Zlepšiť prácu s výsledkami, zrýchliť prístup k tabuľkám tímov a súťažiacich • Korektné vytvorenie entít, atribútov a vzťahov medzi nimi
Požiadavky • teams are dividedintoperformanceclasses • there are championships in eachclassduringtheseason • disciplines are dividedaccording to theagecategries and sex • teamsreceivepointsthat are counted to themain table • racerisregisteredonly in one team • statisticsstoretheperformancesofallracers
Entity • SEASON • PERFORMACE CLASS • TABLE • TEAM • RACER • CHAMPIONSHIP • DISCIPLINE • STATISTIC • POINTS • AGE CATEGORY
Integritné obmedzenia • Performancesofmen and women are countedasegualwithinthe team. • Notevery team has to participate in allthecategories. • Onlyregisteredracermayparticipate.Ifracerisregistered in one team, hecannotparticipate in otherone. • Racers are notallowed to changeteamsduringseason. • Class has 10 teams, thelowestclass has changingnumberofteams. • Atthe end ofseason, twoteamsproceed to higherclass and twoteamsgodown. • Each team cansend a maximum oftreeracersintoeachdiscipline in the championship. • A oneracercanparticipate in anynumberofdisciplines.