Chapter 5, Problem 16RQ

Explanation of Solution

Design trap:

• One of the most common design traps is “fan trap” when the user contains one entity in two one-to-many relationship to another entities that time fan trap is occurred.
• Thus producing an association among other entities that is not expressed in the model.
• When the relationship is identified as incorrect or improper model at that time design trap is occurred.
• So, the design trap is represented in a way that is not consistent with the real world.

Example: