Which of the following statements is true of identifiers?
A) They are constraints on minimum requirements in a relationship.
B) They are data that users want to track.
C) They highlight instances of data duplication in a database.
D) They are attributes whose values are associated with only one entity instance.
Question 2
In the ________ phase of the systems development life cycle, developers use management's statement of the system needs in order to develop a new information system.
A) system definition
B) requirements analysis
C) component design
D) implementation
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