December 2006
Beginner
164 pages
3h 36m
English
As an example, if I want to clean a room (see Figure 5-1), I might begin by picking up clothes, toys, and other things that have been dropped on the floor. I could use a vacuum cleaner to get dirt out of the carpet. I might wash the windows and wipe down the walls, then dust the furniture. All of these activities are subtasks performed to clean the room.
As for vacuuming the room, I might have to get the vacuum cleaner out of the closet, connect the hose, plug it in, push the vacuum cleaner around the room, empty the bag, and put the machine back in the closet. ...
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