How to Read a Process Map

Whether in current or future state, once a process is mapped out, it should be simple to read and implement once you understand what you are looking at. Like any other map, it contains "roads" used in the completion of a process, complete with turnarounds, detours and shortcuts. Interpreting this map is the key to making sure the new process becomes standard operating procedure for all. Here are some tips for reading a process map.

Difficulty: Moderate

Instructions

Things You'll Need:

• Process map
• Icon meaning chart

1. 
    
   Find the beginning and end of the process

   Locate the beginning and end of the process on the diagram. This will give you information you need to interpret the steps and directions on the map.

2. 
    
   Identify the map icons

   Locate the icon identification list. Many process maps will use icons to label activities. Finding a list of these icons and their meanings will allow you to correctly distinguish the tasks and steps noted on the map.

3. 
    
   Note the directional arrows that show where the process flows

   Note the directional arrows on the map. These will tell you what happens if a question is asked. Does the process proceed if the answer is yes? What happens if the answer is negative or some part is missing? How is the flow interrupted depending upon the answers?

4. Read the map. Once you have a basic understanding of the visual information, you will be able to read the process from start to finish. You will see where the flow goes and, depending upon the detail, what parts of the process can be made more efficient or are being duplicated unnecessarily. At this point, you can begin to see changes that can be implemented.

Tips & Warnings

• If you are unfamiliar with the process shown on the map, find someone from that department or who works directly with the process to help explain it to you more fully.

References

• The Lean Six Sigma Pocket Toolbook by Michael George, David Rowlands, Mark Price, John Maxey, 2005