Consider whether it is appropriate to introduce the enhanced concepts of specialization/generalization, aggregation, and/or composition into the ER model for the case study described in If appropriate, redraw the ER diagram as an EER diagram with the additional enhanced concepts.
What will be an ideal response?
Consider Manager as a specialization of the Staff entity. This would move the Manages
relationship from Staff to the Manager subclass. However, the attributes for both entities
would be the same and there would, therefore, seem to be no obvious advantage to introducing
the Manager specialization.
Computer Science & Information Technology
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Information and personal data that is stored with a document is called metadata
Indicate whether the statement is true or false
Computer Science & Information Technology
Alice wants to send Bob a message with the confidence that Bob will know the message was not altered while in transit. What goal of cryptography is Alice trying to achieve?
A. Confidentiality B. Nonrepudiation C. Authentication D. Integrity
Computer Science & Information Technology