Turtle Diagram in IATF 16949:2016

Turtle diagram in IATF 16949:2016

What is Turtle Diagram?

 - A Turtle Diagram is a visual tool that displays all aspects of a process including inputs, outputs, and other relevant information that assists in the efficiency improvements of organizational processes.

 - The Diagram identifies who is the owner of the process and demonstrates how roles, responsibilities, and resources are assigned within the organization.

 - The diagram looks like the body of a tortoise, with components as body, legs, head, and tail.

Benefits of using Turtle Diagram

 - It identifies who is the owner of the process and helps to demonstrate how the organization assigns Roles and Responsibilities.

 - It can be used to identify applicable clauses of the relevant standards and can also detail any applicable legal and other requirements the process must satisfy.

 - Creating a traceable path from start to finish, with all the resources and roles involved in more detail than a basic process flow chart would provide. Creating a clear and concise visual representation of the process, that management can understand to measure effectiveness or locate ways in which to make improvements and remove waste from the process.

 - There is no requirements for organizations to develop Turtle Diagrams. In the requirements of ISO 9001, Clause 4.1 states, “The organization shall identify the processes needed for the QMS and their application throughout the organization and determine the sequence and interaction of these processes.”

Turtle diagram

Download Turtle Diagram Word File

How to use Turtle diagram?

 - The Turtle diagram is made up of 6 areas, all surrounding the process, which is considered the turtle body. The 6 areas are Inputs, Materials and equipment, support process, procedure and methods, outputs, competence skills and training, performance indicator.

 - Process is the center of diagram. This boxes address the value adding step and any sequence that fall within the scope of the process. Process may involve many employees ad multiple departments within organization.

 - Input define the details of the actual process including documents, materials, information, requirements etc.

 - Output include details of process like products, documents etc.

 - Support process, procedures and methods includes procedure, instructions etc.


 - This category should define the details of the actual input process including: documents, materials, information, requirements, etc.


 - This should include details of the output process such as products, documents, etc.


 - In this we find all of the job roles within the organization that have the responsibility to complete the value adding steps within the process.


 - In this section we find all of the resources needed to successfully perform this process. 


 - This part is dedicated to identifying any specific documents within the quality management system that tell the people responsible for completing the value added steps how to successfully complete them within the organization’s best practice.


 - It measures how well the procurement process is performing. 


 - This allows you to understand the input/output process and activities under the scope of internal audit. The diagram can help give an auditor a guide to perform a process audit and helps identify the direction of the audit it will follow.

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