1478Software EngineeringMedium
Which level of Entity Relationship Diagram (ERD) models all entities and relationships?
ALevel 3
BLevel 2
CLevel 4
DLevel 1
Correct answer
B. Level 2
Explanation
Explanation: Level 1 ERD models all data objects (entities) and their “connections” to one another while Level 3 ERD models all entities, relationships, and the attributes that provide further depth. Thus option b is correct.