A Project Workflow Diagram is a visual representation of the process used to complete a project. It illustrates the sequence of steps and tasks required, as well as the people or teams associated with each step. As a tool for effective business planning, it can help identify potential challenges, bottlenecks, and opportunities for improvement in how projects are completed. By clearly depicting how tasks flow from one step to the next, project workflow diagrams can become an invaluable resource for both new and experienced team members alike—allowing them to quickly understand their roles and responsibilities, as well as how their work fits into the bigger picture.