Filename:    Demo_Program_Control_Functions_Pseudocode.txt

Purpose:     Example of Modularization for Program Control

Comment:     Modified from Compiler_Test program

See Also:    Demo_Program_Control_Functions_Hierarchy_Chart.jpg

Author:      Ken Busbee; © 2009 Kenneth Leroy Busbee
Date:        Jan 6, 2009
Licensed by: Kenneth Leroy Busbee under a 
             Creative Commons Attribution License (CC-BY 3.0)
             http://creativecommons.org/licenses/by/3.0/
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Function main
   Pass In: nothing
   Call: get_data
   Call: process_data
   Call: show_results
   Pass Out: zero to the OS
Endfunction

********************

Function get_data
   Pass In: nothing
   display a message asking user for the age of the first person
   get the aget of the first person from the keyboard
   display a message asking user for the age of the second person
   get the age of the second person from the keyboard
   Pass Out: nothing
Endfuction

********************

Function process_data
   Pass In: nothing
   calculate the answer by adding the two ages and 
   dividing by 2.0
   Pass Out: nothing
Endfuction

********************

Function show_results
   Pass In: nothing
   display the answer with an appropriate message
   Call: pause 
   Pass Out: nothing
Endfuction

********************

Function pause
   Pass In: nothing
   direct the operating system to pause the program
   Pass Out: nothing
Endfuction

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Potential Variables

Data Type    Identifier Name
*********    ***************
integer      age1
integer      age2
double       answer

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End of file