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The flow chart or Flowchart

Article written by Luca Ruggiero

The flow chart, also called flow diagram, are diagrams which are represented, schematically and in a series of symbols, algorithms and the different phases of program execution.

The symbols used to represent the flow chart are simple geometric shapes such flat blocks (hence the other way to call diagbamma bowls) that are connected with arrows that follow the chronology, or if you prefer the various stages of implementation.

There are five basic types of blocks:


Indicates the beginning of a program

Indicates a block of read / write

Indicates a boolean control

Induces a specific action

Indicates the end of a program
Let's see a concrete example, making an example of Visual Basic code: 





 Dim n As Integer







 n = 0







 If n = 0 Then



    



 Debug.Print "Res. True"







 Else



    



 Debug.Print "Res. False"







 End If
The same thing, represented graphically through a flowchart, like the following image:

The flow chart, however, have other blocks used in more complex case studies.

We see them:


Indicates the working papers

Shows the help of external drives

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