One of the most commonly used techniques for data modeling is ERD's.
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Q44: An ERD is a picture that shows
Q45: In an entity called STUDENT,you might find
Q46: During the analysis phase,analysts create programming models
Q47: ERD's are drawn in several levels: Context
Q48: Entities are further designed with attributes.
Q50: Entities are a person,place,or thing.
Q51: An analyst can read an ERD to
Q52: ERD's and DFD's are two techniques for
Q53: Relationships are some type of information that
Q54: An illustration of the transformation of data
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