- Where are Flow charts used? – Mainly in Computer programs but we can use them also in practical tasks like “Cooking an egg”.
- What is a Flow Chart? – A flow chart is a tool that shows the processing logic of a computer program at several levels. It describes what each step does at a time.
- There are other tools which one could use to plan his program, like structure charts or pseudo code.
- The use of Flow Charts makes the process of coding our program easier and faster to debug.
- These are some main symbols used in flowcharts:
- Start / Stop: Used as first or last symbol
- Connector: Link with another part of the program or another page
- Input / Output: When an input or an output is carried out (ex: printing)
- Process: Operations on data. Details should be written inside the box
- Decision: Used where a decision or test is carried out. The lines (paths) out show the results
- Predefined Process: Used for several instructions defined elsewhere (ex: in a subroutine)
- Draw out practical examples of the following:
- How to cross the road safely
- How to cook an egg
- How to write a program that checks if the students failed or passed an exam.