Question: (8 pts) A cellular operator needs a database to keep track of its customers, their subscription plans, and the handsets (cell phone) that they are

  1. (8 pts) A cellular operator needs a database to keep track of its customers, their subscription plans, and the handsets (cell phone) that they are using. Based on this E-R diagram, describe the relationships in English. Your description should contain the cardinality and cardinality constraint information. For example, the relationship of Includes should be described as follows:

(8 pts) A cellular operator needs a database to

A plan can include one or possibly many handsets; a handset can be optionally included in one and at most one plan.

a) Describe the relationship of Is responsible for(2 pts)

    1. Describe the relationship of Belongs(2 pts)
    1. Describe the relationship of Family member(2 pts)
    1. Describe the relationship of have(2 pts)

Family member Customer HO Is responsible for Belongs Handset Includes Plan HO +H Plan Type have

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