This is a process flow diagram for Peanut Butter Brownies Business. PFDs (Process Flow Diagrams) are graphical representations of a process, its constituent tasks, and their sequence. A PFD aids in process design brainstorming and communication. A complete list of tasks that comprise the process under analysis is required for the PFMEA process. The team can decide on the level of detail. More detail takes time, but it reduces the likelihood of missing Failure Modes. EdrawMax is the best tool for creating an process flow diagram.