The key benefits of a process flow are:

• providing every team member with a clear and agreed understanding of the overall process and every stage that it is included
• identifying non-essential activities
• smoothing communication within a team and - if necessary - across departments

All of these benefits can be used to process improvement in terms of efficiency and accuracy. 

There are no universal look and shape flow charts may take, as they can h vary a lot depending on the process's complexity. They can use just a few symbols to portray particular stages of the short, simple process, such as documents approval. Still, multiple icons and shapes can be used to display the process of creating a new product or onboarding a new employee.