What is the Purpose or Function of Your Flowchart?
Before deciding how to draw a flowchart, it's important to determine the purpose of it. Will it be used to brainstorm a product or system? Will it be used for training a new employee for a specific task or job? Is it a set of instructions to assemble a product? Will it be used as an overview for a group presentation?
If it is to serve as a working diagram for thinking through a design or programming problem, then how it is designed and drawn are of less importance than its function. In other words, how you make a flowchart look is less important than being able to read and understand it later.
On the other hand, if it is going to be used to explain a process to someone else, then you need to be very careful about how you draw a flowchart. It needs to convey the information in a way that is easy to understand. Following some basic structure and design concepts will make your flowchart easier to read and understand.