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(10 pts) A Board of a news outlet is composed by a number of announcements. An announcement of the news outlet may not be present

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(10 pts) A Board of a news outlet is composed by a number of announcements. An announcement of the news outlet may not be present in other boards. (a) Translate the requirement into an appropriate static model. (b) Produce a design whereby an announcement can be created, and briefly explain the design rationale)

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