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2 months ago
Suppose you have created a data model for an airline based on a variety of forms, reports, user interviews, data sources, etc. Your client comes forward with a new desired report that includes passenger weights and a relationship between passengers and employees, neither of which is in your E-R diagram. You should ________.

• create a new, separate E-R diagram with just the new information

• add the relationship and the weight attribute to the existing data model

• add the relationship but not the weight attribute

• add the weight attribute but not the relationship
Source  Download
Database Processing: Fundamentals, Design, and Implementation
Edition: 15th
Authors:
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Posts: 121
2 months ago
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add the relationship and the weight attribute to the existing data model
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2 months ago
Thank you
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2 months ago
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