July 2008
Intermediate to advanced
544 pages
16h 52m
English
Content preview from Computers as Components, 2nd Edition
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9.5 Quality Assurance 457
Class Responsibilities Collaborators
Elevator car* Moves up and down Car control, car sensor, car
control sender
Passenger* Pushes floor control and
car control buttons
Floor control, car control
Floor control* Transmits floor requests Passenger, floor control reader
Car control* Transmits car requests Passenger, car control reader
Car sensor* Senses car position Scheduler
Car state Records current position
of car
Scheduler, car sensor
Floor control reader Interface between floor control
and rest of system
Floor control, scheduler
Car control reader Interface between car control
and rest of system
Car control, scheduler
Car control sender ...