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Jit and Qa

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Submitted By kumarat42
Words 1576
Pages 7
Introduction
Just In Time (JIT)
This is Toyota’s production strategy that strives to improve a business return by reducing the in process inventory, improving quality and stream lining the processes to reduce carrying costs. To meet JIT the process relies on a signal or Kanban. This signal tells production when to make a certain part or when to sequence a certain part that is required. JIT in time focuses on continuous improvement (Kaizen) and if implemented correctly can make the business very efficient with improved quality and returns on investment.
Quality Assurance (QA)
This is a process centred approach to ensure that Toyota is providing the best possible products or services. It is related to quality control, which focuses on the end result. Quality assurance focuses on the process to achieve the end result. Toyota uses a system called the QA Network, this acts like a net to catch defects before the end result. Toyota implements a 200% quality check by the production and stores processes even before the vehicle is sent for quality inspection. This ensures that every vehicle is fitted with the correct part in the correct way. Toyota’s QA Network is very effective in achieving a very impressive SDR (straight delivery rate), vehicles with no defects that go straight to the customer and no delays.

TSAM’s Quality assurance network
Before condition
100% before QCI

100%
100%

Figure 1
This is an example of the QA network for the wire frame wrong or missing part fitment. This part is an A rank defect if the wrong part or part not fitted. A rank means that this defect if not picked up and goes to the customer can lead to serious injury or death to the customer because wire harnesses fall under the fire hazard safety critical items. If the wrong harness is fitted it could foul with other parts because of different lengths of wires for specific units and

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