A) minute remaining) · More Quarter inserton,

A)  
Non Functional and Functional Requirements are necessary as they
identify in Project Analysis.

Non Functional
Requirements : These are the requirements that describe “how the system works”

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While Functional
Requirements : are those describing “what the system will do”

 

So, listing the
requirements :

Functional Requirements –

– Car Wash

·     
Providing soap, foam,
rinse and wax

·     
Timer Preset

·     
Cleaning Ability

·     
Provide Wash Time

·     
Identify Wash Period

 

Non Functional Requirements –

·     
Coin Operated

·     
Self Service

·     
Number of Quarters

·     
Inserting Quarters

 

B)  
Decomposition of
system into functional subsystems requirements.

·     
Arrival of customer

·     
Operated coin

·     
Inserting Quarter

·     
Timer Preset

·     
Use soap, foam, rinse
and wax

·     
System Beep when one
minute is left

·     
Identify whether want
a new car-wash time or not.

 

 

C)  
Functional
Decomposition :

 

·     
Customer Arrival

·     
 Inserting Quarter

·     
Time Allocation

·     
Car Wash

·     
Turning Dial for Foam, Wax, Soap

·     
System beeps (when 1 minute remaining)

·     
More Quarter inserton, if required

 

 

INPUT

 

 

 

 

 

 

 

 

OUTPUT

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