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Process
Contains calculation or process
Can contain a sequence of consecutive operations
Has a single flow entering and a single flow exiting
Calculate average Sum = A+B+C
Ave = Sum/3
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Decision
Condition whose result causes one of multiple calculations or processes
Stated as question with only YES or NO as answer
One flow entering and two flows exiting
Is A > B?
Yes
No
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Input/Output
Read input or write output
Only one operation, but can have multiple inputs or outputs
One flow entering and one flow exiting
Read A,B,C
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Connector
Brings together separate flows that are coming together to perform the same operation
Multiple flows entering, one flow exiting
Note there is no “disconnector”
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Let us try an example 8
We want to build a program to calculate the salary of a finical consultant
We need to read the working hours and hourly rate from the consultant
Calculation: Hours*Pay Rate
Output: the gross pay
Quiz : Draw Flowchart
Let’s write a flowchart to detail the process of a user logging into a computer account
What’s the first step? Determine input and output Input: userid and password Output: one of three situations:
Accepted
Incorrect userid
Incorrect password
Please use PowerPoint to finish this quiz and upload your answer to blackboard system.
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