Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Add the ends to the relations on the Crows Foot ERD for the business rules of the XYZ Company's motor pool (a motor pool typically is a group of vehicles that are temporary assigned to employees to drive for business purposes):
- Each time an employee wants a vehicle a new assignment is made.
- An employee can have multiple assignments, but each assignment is for only one employee and only one vehicle.
- A vehicle may have multiple assignments.
- The XYZ location at the end if the assignment is stored in the assignment. It is assumed tht the assignment begins at the destination of that vehicles prior assignment.
- An assignment may have the status of Assigned, Out, or Returned.
- A vehicle may only be "Out" on one assignment and an employee may only have one assignment "Out"
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