Week 9: Currency Conversion

CheckPoint: Interface and Communication Messages

Top-Level Objects	Communicates With	Incoming Messages	Outgoing Messages
Door	Control Panel		Open Closed
Control Panel	Door Oven Controller Display Panel	Open Closed Oven On Oven Off	Time Start Clear Power Setting
Oven Controller	Control Panel	Start Stop Power Setting	Temperature Oven On Oven Off
Display Panel	Control Panel	Oven On Oven Off Power Setting Time

Having all the components inside the microwave makes the microwave relatively difficult to fix because it would take an expert technician to open it and fix any internal components. However, if you look at the microwave as part of the overall kitchen component, you can easily replace the existing microwave with a new model. Having a componentized system will always offer more flexibility in terms of maintenance; a componentized system will typically be more expensive to develop and more difficult to put together.