Understanding basic flowchart symbol.pptx

basic flowchart symbols

1. Understanding Flowcharts Identify different kinds of technical drawings

2. Introduction to Flowcharts A flowchart is a visual representation of a process. It helps to make complex processes easier to understand. We use different shapes to represent different steps.

3. All the flow charts we will be looking at begin with a Start Point and finish with an End Point. Most of the boxes on a flow chart are instructions, which tell you what to do next. These appear in rectangular boxes like the one shown on the right: Sometimes a question needs to be answered to decide what instruction should happen next. These questions are put in decision boxes like the one on the right:

4. Why Use Flowcharts? Flowcharts simplify complex tasks. They help everyone understand the process the same way. They make it easier to spot mistakes or improvements.

5. Start and Finish Points Every flowchart needs a clear start and finish. We use an oval shape called the Terminator for these points. Example: "Start" and "Finish" are written inside ovals.

6. Input and Output Input is information we get to solve the problem. Output is the result or information we give out. We use a parallelogram to show input and output.

7. Processes Processes are the actions we take to solve the problem. We use a rectangle to show a process. Example: Making coffee involves several processes.

8. Decisions Sometimes we need to make a decision in the process. We ask a true or false question. We use a diamond shape to show decisions.

9. Decisions

10. Arrows U sed to cennect the steps in a flowchart, to show the flow or sequence of the problem solving process.

11. Drawing of a flowchart

12. Example: How to find profit or loss.

13. Example: Formating a flash drive

14. Example: Making Coffee Start: Ask mom how she likes her coffee. Input: Get the coffee ingredients. Process: Make the coffee. Decision: Does mom want milk? Output: Serve the coffee. Finish: Say "Coffee is ready!"

15. Example: Making Coffee

16. Create a flowchart based on the following situation Safely crossing the street. Stop working on a computer and shutting it down. Steps for working out 4.72 divided by 1.18 on a calculator. Playing snake and ladder.

17. Review and Practice Why are flowcharts useful? What shapes do we use for start and finish? How do we show input and output?

18. Assessment/Evaluation Draw a flowchart for the following situation: There are four types of fruits: Apples, Oranges, Bananas and Grapes. Each one you must pick two types of fruits. Note the following conditions: If you pick apple, you cannot pic orange. If you pick orange, you cannot pick banana. If you pick grapes, you cannot pick apple.