Source		Destination
Use Case	Scenario	Req. No.	Description
Input Values	Fig. 3	Req. 1	Input accepts a,b, and c values.
Compute Equation	Fig. 4	Req. 2	Compute equation calculates roots (if any).
Output Roots	Fig. 5	Req. 3	Output is printed to the screen.

                  Requirements

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 Fig.1 Quadratic Equation Activity Model
                     

 Fig. 2   Quadratic Equation Use Case Model  







                        

 

Fig 3  Input State Chart Model

 

 

 

 

 

 

           Fig. 4  Computation Equation State Chart

The discriminate is equal to b^2 - 4ac

 

 

 

 

 

 

 

			 Fig. 5  Output State Chart

                  Fig. 6  FFBD of Quadratic Equation System

Fig. 7 Quadratic Equation System Structure

 

 

 

Fig. 8  Quadratic Equation Sequence Model

 

 

 

 

 

 

 

				Fig. 9  Logical States of Events

Source		Destination
Req. No.	Description	Scenario	Use Case
Req. 1	Input accepts a,b, and c values.	Fig. 3	Input Values
Req. 2	Compute equation calculates roots (if any).	Fig. 4	Compute Equation
Req. 3	Output is printed to the screen.	Fig. 5	Output Roots

     Traceability

 

 

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