Question

In: Computer Science

Draw two E-R diagrams for each of the examples below: one using the traditional diamond notation...

Draw two E-R diagrams for each of the examples below: one using the traditional diamond notation and one using IE Crow's Foot notation

  1. Each FBI agent is assigned one and only one car by the agency when they begin employment. All FBI agents get a car. Each car is assigned to one and only one FBI agent but may not be assigned to any FBI agents at all2.
  2. Each FBI agent has one or many clients in the witness protection program but some FBI agents might not have any clients in the program at all. Each client is assigned to one and only one FBI agent. All clients must be assigned to an FBI agent.
  3. Each property is occupied by one or many of the clients in the witness protection program but some properties might not be occupied with any clients. Each client occupies one or many properties but a client might not occupy any property at all.

Solutions

Expert Solution

Notation of ER diagram :

IE Crow's Foot notation :

full answer:

venereology answered 2 years ago
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