Question: 1. A different ED diagramming notation that is most commonly used in industry. 1. UML 2. Chen's 3. IDEF1X 2. In class we discussed the

1. A different ED diagramming notation that is most commonly used in industry.

1. UML

2. Chen's

3. IDEF1X

2. In class we discussed the defining characteristic of 3NF.

1.Data has been observed at least three times

2.. Data is independent of its structure

3. Data has been checked at least three times

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