Flow chart is defined as graphical representation of the logic for problem solving.
The purpose of flowchart is making the logic of the program clear in a visual representation.
1. The flowchart should be clear, neat and easy to follow.
2. The flowchart must have a logical start and finish.
3. Only one flow line should come out from a process symbol.
4. Only one flow line should enter a decision symbol. However, two or three flow lines may leave the decision symbol.
5. Only one flow line is used with a terminal symbol.
6. Within standard symbols, write briefly and precisely.
7. Intersection of flow lines should be avoided.
1. Communication: - Flowcharts are better way of communicating the logic of a system to all concerned.
2. Effective analysis: - With the help of flowchart, problem can be analyzed in more effective way.
3. Proper documentation: - Program flowcharts serve as a good program documentation, which is needed for various purposes.
4. Efficient Coding: - The flowcharts act as a guide or blueprint during the systems analysis and program development phase.
5. Proper Debugging: - The flowchart helps in debugging process.
6. Efficient Program Maintenance: - The maintenance of operating program becomes easy with the help of flowchart. It helps the programmer to put efforts more efficiently on that part.
1. Complex logic: - Sometimes, the program logic is quite complicated. In that case, flowchart becomes complex and clumsy.
2. Alterations and Modifications: - If alterations are required the flowchart may require re-drawing completely.
3. Reproduction: - As the flowchart symbols cannot be typed, reproduction of flowchart becomes a problem.
4. Cost: For large application the time and cost of flowchart drawing becomes costly.
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