Supplier-Input-Process-Output-Customer (SIPOC) Diagram is a tool that provides a “bird’s-eye view” of a process. It clearly defines boundaries / Scope. It identifies major outcomes, activities, and avoids over-detail and confusion. This tool also helps plan & target measurement and focuses on cross-functional alignment & analysis.
When is it used?
The SIPOC Diagram is used during the Define phase as part of the process mapping effort. It is helpful in documenting the process at a high level, providing a simple illustration of the process, and identifying the Suppliers and Inputs of the Process, as well as the Outputs, and Customers.
How is it used?
Here are the steps that can be followed to create a SIPOC Diagram. These are indicative steps which can be adapted by consultants during the project execution.
1. Identify the Process to be diagrammed and name it
2. Define the “Scope”:
- Customer(s) and key Output(s)
- Supplier(s) and key Input(s)
3. Establish high level process steps
- Brainstorm major process activities on “sticky notes”
- Group or organize activities into similar categories or “major steps” in the process One can use “Affinity” method to get this activity executed in a group
- Place major steps in most appropriate order you can use your creativity (“block diagram” , arrows, flow chart can be used)
4. Clarify the characteristics of the inputs / outputs
TIPS
- In a team setting, start the creation of a SIPOC by posting blank flipchart pages to give you room to develop the entire SIPOC diagram. Then use sticky notes for each element so you can more easily edit your work
- It’s usually best to develop the SIPOC diagram starting at the ends and working inward: identify the “O-C’ and “S-I” components before developing the high-level process diagram.
