Running head

Running head: INTERFACES AND COMMUNICATION MESSAGES

1

Interfaces and Communication Messages

Dale Lappin

IT210

August 22, 2012

Dan Reddy

INTERFACES AND COMMUNICATION MESSAGES

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Top Level

Objects

Interfaces and Communication Messages

Communicates

With

Incoming

Messages

Outgoing

Messages

Open

Door

Control Panel

Control

Panel

Door

Microwave Controller

Display Panel

Microwave

Controller

Control

Panel

Display

Panel

Control

Panel

Open

Closed

Power On

Power Off

Start

Stop

Temperature Settings

Temperature Settings

Power On

Power Off

Time

Closed

Time

Start

Clear

Temperature Settings

Temperature

Power On

Power Off

Describe some of the advantages of having a componentized system.
(For example, what happens if the microwave breaks?)

One advantage of a componentized system is that if one component breaks then you can just replace
the broken component and not the whole system. A real life example of this would be a home stereo
system, having separate components such as the amplifier, equalizer, tuner, and a CD player makes
it possible to replace only the broken component. In the kitchen model, the microwave itself is a
component of the kitchen, if it breaks there is no need to replace the whole kitchen just the microwave.

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