Guide to Understanding the Pull System in PMI-ACP Kanban Methodology
The Pull System is a fundamental concept in the Kanban Methodology under the PMI-ACP certification.
Importance: It is critical because it advocates for the production based on demand, ensuring that resources are not wasted, and is key in managing the flow of work and limiting work in progress. Overproduction is thus minimized, and efficiency is improved.
What it is: In the Pull System, tasks are 'pulled' to the next station only when that station is ready. This is in contrast to the 'push' approach where tasks are simply pushed to the next stage without considering whether or not they are ready for it.
How it works: A Pull System uses signals to notify a producer to make a product. The system starts at the demand stage and ends at the supply stage. Only when demand is present is the product supplied, resulting in highly visible, effective communication all through demand chain backlog.
Exam Tips – Answering Questions on the Pull System: When answering questions related to the Pull system:
1. Understand the difference between Pull and Push Systems.
2. Remember that Pull System is about just-in-time production and inventory control system
3. Emphasize how Pull Systems can minimize waste and improve efficiency.
Most importantly, apply the principle in practical scenarios when answering situational questions on the exam.