What is the difference between just in time and just in sequence




















The just-in-time concept was further developed into a more advanced delivery process called Just in Sequence JIS. Components and parts arrive at a production line right in time as scheduled before they get assembled. Feedback from the manufacturing line is used to coordinate transportation to and from the process area. For example, our customers want to ensure not only to have enough tractor fenders at the right time, but enough blue, red or any other color fenders precisely when they need them.

If the plant is making a blue, a white, a black and a red car in that order, it has to know that blue, white, black, and red doors will also arrive in that sequence. With JIS, the cost of getting parts in the correct sequence shifts from the factory worker to the supplier.

What is just-in-sequence JIS vs. What is just-in-case JIC? Just-in-Time vs. Just-in-Case: Pull vs. Push Companies use just-in-time inventory to reduce excess supply and create a lean production process, while just-in-case inventory is used to avoid running out of stock due to a sudden increase in demand. Just-in-time Just-in-time inventory management optimizes the supply chain, but there are caveats.

Advantages Just-in-time inventory benefits those with efficient operations and is good for the bottom line. Other benefits: Efficient use of resources: JIT inventory management reduces the risk of overordering and having supplies sit idle.

Disadvantages Just-in-time inventory management can increase issues in some key areas. Other downsides: Supplier stability needed: The success of a just-in-time inventory strategy relies on the timeliness and consistency of suppliers. Just-in-case Companies that employ a just-in-case inventory strategy enjoy several benefits, but it is not without downsides. Advantages Just-in-case inventory management can facilitate growth and profitability in a few ways.

Disadvantages Just-in-case doesn't address all inventory issues and creates a few of its own. Just-in-Case: What's the Difference? Just-in-Case Just-in-Time A "push" system where inventory purchases are not based on actual current demand. A "pull" system where inventory is essentially purchased to order. Focuses on maximizing flexibility with less concern for capital application. Focuses on minimizing inventory and using capital efficiently. Excess inventory is kept on hand to avoid running out due to supplier delays or demand spikes.

Inventory is purchased only to meet immediate production or sales needs. Companies generally make larger, more expensive inventory orders Less working capital is required because inventory purchases occur in smaller batches. Valuable when demand is unpredictable or suppliers are unreliable. Works best when demand is stable and suppliers are highly dependable. Demand forecasting is less critical as long as there is enough inventory to meet the highest demand.

Requires accurate demand forecasts to avoid over- or under-buying inventory. Inventory Management. Just-in-Time Inventory JIT Explained: A Guide Just-in-time JIT inventory and just-in-time manufacturing have been buzzwords in the world of supply chain for some time now, and quite a few businesses have adopted this approach.

Trending Articles What is Inventory Management? Inventory Control vs. Sales Chat How is your business adapting to change? Start chat. Just In Sequence allows for much more flexibility than Just In Time and traditional manufacturing methods. JIS allows manufactures to execute mix modeled manufacturing. With mixed modeled manufacturing, different product models can be produced on the same assembly line.

As a result, Just In Sequence manufacturing techniques are most commonly found within the automotive industry. The specificity and complexity of Just In Sequence make it critical to have flexible and reliable software in place. If the mistake is not caught in time, all subsequent products will have the wrong component installed.

When implementing Just In Sequence solutions, it helps to have experts that are very familiar with automotive sequencing and have implemented JIS successfully.

The demand for customization continues to increase in automotive manufacturing. There has to be a way to maintain the efficiency that JIT gives manufacturers while also meeting consumer demands for customization. Just-in-sequence JIS manufacturing is considered an evolution of just-in-time. It delivers the right parts to the right assembly line in the right order. Unlike JIT, just-in-sequence models allow line operators to follow a simple sequence of various parts without having to make decisions about what part gets attached to the main component.

Line operators working in a JIT-driven environment have less inventory to pick their parts, which reduces their time spent searching for the right one, but they still have to rely on their own logic to decide which part to choose. When a JIS system is implemented, the sequence is already determined, therefore operators can simply take the next component in the sequence and assemble it.

Just-in-sequence is perfect for automotive manufacturing environments because production tends to be high-variety and low-volume. In theory, any component that has a large number of variants can be a great candidate for this type of sequencing.

Within the just-in-sequence model, manufacturers can sequence the line at different points in the production process. All About Lean effectively describes the three main types of sequencing: pick to sequence, ship to sequence and build to sequence:. The worker or computer would need to know the sequence of production, and then simply select the matching parts for this sequence in the right order.

Often, a small buffer is added between the picking and the actual assembly to reduce waiting times of both the pickers if the main line is slower and the main line if the picker is slower.



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