System Analysis and Design
Which of the following is the most critical requirement of a Passenger Reservation System?

printing of tickets
response time
ease of programming
graphical user Interface
None of these

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System Analysis and Design
Data manipulation language (DML)

determine how data must be structured to produce the user's view
describes how data are structured in the data base
specifies for the DBMS what is required; the techniques used to process data
all of the listed here

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