A flow chart can be used to:




Define and analyse processes.
Build a step-by-step picture of the process
for analysis...
Symbols for drawing a flowchart:

Start or End of the program
Symbols for drawing a flowchart:

Computational Steps or Processing Function
of a program
Symbols for drawing a flowchart:

Input or output operation
Symbols for drawing a flowchart:

Decision Making and Branching
Symbols for drawing a flowchart:

Connector or joining of two parts of program
Symbols for drawing a flowchart:

Off-page connector
Symbols for drawing a flowchart:

Flow lines
Symbols for drawing a flowchart:

Annotation (foot note)
Guidelines in flowcharting 
In drawing a proper flowchart, all necessary
requirements should be listed out in logical
ord...
…Guidelines in flowcharting 
Only one flow line should come out from a
process symbol.
OR
…Guidelines in flowcharting 
Only one flow line should enter a decision
symbol, but two or three flow lines, one
for each...
…Guidelines in flowcharting –
Only one flow line is used in conjunction
with terminal symbol.
…Guidelines in flowcharting –
Write within standard symbols briefly. As
necessary, you can use the annotation
symbol to de...
…Guidelines in flowcharting –





In case of complex flowchart, it is better to use
connector symbols to reduce the nu...
Advantages Of Using Flowcharts :







Effective communication
Effective analysis
Proper documentation
Efficient Co...
Limitations of using Flowcharts :
1. Complex logic: Sometimes, the program
logic is quite complicated.
2. Alterations and ...
Example 2
Draw a flowchart to find the largest of three
numbers A,B and C.


THANK YOU
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aamir presentation

  1. 1. A flow chart can be used to:    Define and analyse processes. Build a step-by-step picture of the process for analysis, discussion, or communication. Define, standardise or find areas for improvement in a process.
  2. 2. Symbols for drawing a flowchart: Start or End of the program
  3. 3. Symbols for drawing a flowchart: Computational Steps or Processing Function of a program
  4. 4. Symbols for drawing a flowchart: Input or output operation
  5. 5. Symbols for drawing a flowchart: Decision Making and Branching
  6. 6. Symbols for drawing a flowchart: Connector or joining of two parts of program
  7. 7. Symbols for drawing a flowchart: Off-page connector
  8. 8. Symbols for drawing a flowchart: Flow lines
  9. 9. Symbols for drawing a flowchart: Annotation (foot note)
  10. 10. Guidelines in flowcharting  In drawing a proper flowchart, all necessary requirements should be listed out in logical order.  The flowchart should be clear, neat and easy to follow. There should not be any room for ambiguity in understanding the flowchart.  The usual direction of the flow of a procedure or system is from left to right or top to bottom.
  11. 11. …Guidelines in flowcharting  Only one flow line should come out from a process symbol. OR
  12. 12. …Guidelines in flowcharting  Only one flow line should enter a decision symbol, but two or three flow lines, one for each possible answer, should leave the decision symbol.
  13. 13. …Guidelines in flowcharting – Only one flow line is used in conjunction with terminal symbol.
  14. 14. …Guidelines in flowcharting – Write within standard symbols briefly. As necessary, you can use the annotation symbol to describe data or computational steps more clearly. This is confidential data
  15. 15. …Guidelines in flowcharting –    In case of complex flowchart, it is better to use connector symbols to reduce the number of flow lines. Avoid the intersection of flow lines. Ensure that the flowchart has a logical start and finish. It is useful to test the validity of the flowchart by passing through it with a simple test data.
  16. 16. Advantages Of Using Flowcharts :       Effective communication Effective analysis Proper documentation Efficient Coding Proper Debugging Efficient Program Maintenance
  17. 17. Limitations of using Flowcharts : 1. Complex logic: Sometimes, the program logic is quite complicated. 2. Alterations and Modifications: Alterations may require re-drawing completely. 3. Reproduction: As the flowchart symbols cannot be typed, reproduction of flowchart becomes a problem.
  18. 18. Example 2 Draw a flowchart to find the largest of three numbers A,B and C.
  19. 19.  THANK YOU

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