Question: 21.9. You have been assigned to a team that is developing software for a fax modem. Your job is to develop the phone book portion

21.9. You have been assigned to a team that is developing software for a fax modem. Your job is to develop the “phone book” portion of the application. The phone book function enables up to MaxNames people to be stored along with associated company names, fax numbers, and other related information. Using natural language, define

a. The data invariant.

b. The state.

c. The operations that are likely.

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