MODELO E-R
Authored by Mario Olmos
Professional Development
5th - 6th Grade
Used 10+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Está basado en una percepción del mundo real consistente en objetos básicos llamados entidades y de relaciones entre estos objetos.
MODELO ENTIDAD RELACIÓN E - R
MODELO RELACIONAL
DIAGRAMA DE FLUJO
NINGUNO
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es una «cosa» u «objeto» en el mundo real que es distinguible de todos los demás objetos.
ENTIDAD
RELACIÓN
ATRIBUTO
NINGUNO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las instancias de esta entidad dependen de una entidad existente en el universo.
ENTIDAD FUERTE
ENTIDAD DEBIL
NINGUNA
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describen propiedades que posee cada miembro de un conjunto de entidades.
ENTIDAD
ATRIBUTO
RELACION
NINGUNA
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Representan asociaciones del mundo real entre dos o más entidades.
ENTIDAD
ATRIBUTO
RELACIÓN
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las interrelaciones pueden tener atributos como las entidades.
VERDADERO
FALSO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se les denomina anillo de grado uno; relaciona una entidad consigo misma por lo que también se les llama relaciones reflexivas.
RELACIÓN UNARIA
RELACIÓN BINARIA
RELACIÓN TERNARIA
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