Chapter 7, Problem 60E

Program Plan Intro

a.

Top-down design process for buying a toy for 4-year-old cousin:

From the problem 53,

• Walk to store.
• Pick a toy.
• Purchase the toy.

Steps in “walk to store”:

• Select store.
• Search the location.
• Get a bus.

Steps in “pick toy”:

• Walk up and down in the passage way.
• Confused at choices.
• Take nearest large ballooned animal.

Steps in “purchase a toy”:

• Walk to the clerk.
• Give the large ballooned animal to the clerk.
• Provide the credit card to the clerk.
• Sign the credit card payment receipt.

Program Plan Intro

b.

Top-down design process for organizing an awards banquet for the soccer team:

• Rent a function hall.
• Send invitations.
• Select the menu.
• Purchase trophies.

Steps in “rent a function hall”:

• Search the function hall availability.
• Visit probable options.
• Decide on one.
• Make the reservation.

Steps in “send invitations”:

• Obtain the list of people to call.
• Purchase the invitations.
• Address the invitations.
• Send the invitations.

Steps in “select the menu”:

• Call the contractors.
• Ask them to bring menu and cost.
• Finalize any one.

Steps in “purchase trophies”:

• Get count to buy.
• Locate the store that sells trophies.
• Order trophies over the phone.
• Collect the trophies.

Program Plan Intro

c.

Top-down design process for buying a dress for an awarding event at which you are being honored:

• Walk to favorite store.
• Select dress or suit.
• Pay for choice.
• Go home.

Steps in “walk to favorite store”:

• Select store.
• Search the location.
• Get a bus.

Steps in “select dress or suit”:

• Walk to the floors.
• Confused at choices.
• Take suitable color suit or dress.

Steps in “pay for choice”:

• Walk to the clerk.
• Provide the credit card to the clerk.
• Sign the credit card payment receipt.

Steps in “go home”:

• Search the bus stop.
• Get a bus.
• Reach the home.