Process Flow Diagram Guidelines
The pfd displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.
Process flow diagram guidelines. Using a step by step method to document a process will help you get it done. Flowcharts can be an effective efficient way to show steps in a process. Wikipedia has a great summary of the history of flowcharts read more in this wiki section. Who is involved in process documentation.
In some cases the same person may play all three roles. When designing and creating a flowchart bear in mind that the diagram needs to be easy to understand. Frank gilberth introduced flowcharts in 1921 and they were called process flow charts at the beginning. Show where each.
Edraw flow chart software will help the designer create professional basic flow chart business process modeling notation chart cross functional flow chart data flow diagram list and workflow chart from examples with no drawing required. Process flow diagrams are more complex and show all main flow streams including valves to enhance the understanding of the process as well as pressures and temperatures on all feed and product lines within all major vessels and in and out of headers and heat exchangers and points of pressure and temperature control see figure 1 for a sample process flow diagram. Mogensen is credited with training business people on how to use flowcharts. Here are five tips for good flowchart design.
A flowchart is a picture of the separate. Design the flowchart so that flow proceeds from top to bottom and from left to right. They are represented by rounded rectangles or ellipses with the words start and end inside. There are 3 key ownership roles in process documentation.
Since the process may have several different results depending on the decisions made during the flow the flowchart can have several possible endpoints with a circle or oval representing each endpoint. 5 detailed process documentation is also a vital part of patents and trade secrets. Flowchart only the normal flow of operations making sure that all procedures and processes are in the right order. But they can also be confusing and even misleading if not properly prepared.
How to document processes. Project management process guidelines flowchart use these flowchart diagrams as a visual aid to help understand the project management methodology. Macro flowchart top down flowchart detailed flowchart also called process map micro map service map or symbolic flowchart deployment flowchart also called down across or cross functional flowchart several leveled flowchart. A process flow diagram pfd is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment.
Starting and ending points every flowchart must have starting and ending points. Another commonly used term for a pfd is a flowsheet. Process flowchart process flow diagram. Five tips for better flowcharts.
The diagrams show parallel and interdependent processes as well as project lifecycle relationships.