Typically, a flow chart works from the top ... there is a noteworthy difference. While flowcharts break down the steps of a workflow, process maps can get much more detailed than flowcharts ...

A workflow chart, or workflow diagram is an effective, easy-to-understand tool that helps people who share a common goal to understand business processes, management and human resources tasks.

Ultimately, what you need depends on the size and complexity of the processes to which you’re trying to apply workflow management. Features aren’t the only differences between tools.