In Section 6.4.2 in the book, we classified design goals into five categories: performance, dependability, cost, maintenance, and end user. Assign one or more categories to each of the following goals:
What will be an ideal response?
• Users must be given a feedback within 1 second after they issue any command. [Performance]
• The TicketDistributor must be able to issue train tickets, even in the event of a network failure.
[Dependability]
• The housing of the TicketDistributor must allow for new buttons to be installed in the event the
number of different fares increases. [Maintenance]
• The AutomatedTellerMachine must withstand dictionary attacks (i.e., users attempting to discover a
identification number by systematic trial). [Dependability]
• The user interface of the system should prevent users from issuing commands in the wrong order. [End
user]
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Objects with _______ scope can be referenced only within the object in which they are defined.
Fill in the blank(s) with the appropriate word(s).
Which of the following error codes appears if you leave out a required argument?
A) #REF! B) #NUM! C) #VALUE! D) #N/A
In Java, polymorphism is implemented using late binding.
Answer the following statement true (T) or false (F)
Which of the following is correct?
A .25 = (2 x 102) + (5 x 101) B. 289 = (2 x 103) + (8 x 101) + (9 x 100) C. 7523 = (7 x 103) + (5 x 102) + (2 x 101) + (3 x 100) D. 0.628 = (6 x 10-3) + (2 x 10-2) + (8 x 10-1)