Logistics Dictionary
Find definitions and terms used in logistics, shipping, and supply chain management
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Terms Starting with "J"
Jettison
Jettison in logistics refers to the deliberate act of discarding cargo from a vessel, aircraft, or vehicle, usually in emergency situations to maintain stability, reduce weight, or prevent catastrophic accidents. This procedure is particularly critical in maritime shipping and aviation, where overloading or hazardous conditions may threaten the safety of the vessel, aircraft, or crew. Jettisoned cargo is often documented for insurance claims, legal compliance, and risk assessment. Companies must carefully plan procedures, follow international regulations, and maintain detailed records to ensure accountability. Jettison is generally considered a last-resort measure when all other options to maintain safety have failed. Characteristics:
JIT (Just-In-Time)
Just-In-Time (JIT) is an inventory and production management strategy designed to reduce waste and increase operational efficiency by receiving or producing materials only when they are needed in the production process. JIT reduces inventory holding costs, minimizes storage space requirements, and enhances cash flow, making it particularly useful for manufacturing and distribution industries with high inventory turnover. The approach requires accurate demand forecasting, strong supplier relationships, and reliable logistics networks to ensure timely delivery of materials. Implementation of JIT also helps in reducing obsolete stock, lowering lead times, and improving overall responsiveness to market fluctuations. Characteristics:
Jumbo
In logistics, jumbo refers to oversized, extremely heavy, or voluminous cargo that requires specialized handling, storage, and transportation due to its dimensions or weight. Jumbo shipments often necessitate reinforced containers, heavy-lift cranes, specialized trucks, or shipping vessels capable of carrying oversized loads. Transporting jumbo cargo may involve route planning to accommodate bridges, tunnels, or road restrictions, as well as compliance with local regulations for oversized freight. Due to the additional resources required, jumbo logistics often carries higher operational costs and requires skilled personnel to handle safely. Characteristics:
Just In Sequence (JIS)
Just-In-Sequence is a logistics strategy where components or materials are delivered to the production line in the exact order in which they will be used. JIS is commonly applied in automotive and electronics manufacturing to optimize assembly processes, reduce on-site storage, and prevent production delays. The approach demands real-time communication with suppliers, precise scheduling, and close coordination with warehouse and production teams. Implementing JIS improves efficiency, reduces material handling, and allows production lines to operate smoothly without interruptions. Characteristics:
Just In Time (JIT)
Just-In-Time is a methodology that synchronizes the delivery of materials or components with production schedules, ensuring that inventory arrives precisely when needed. JIT reduces storage costs, eliminates unnecessary stockpiling, and improves cash flow while maintaining production efficiency. The system relies heavily on demand forecasting, reliable suppliers, efficient transportation networks, and coordination across departments. In logistics, JIT helps minimize waste, enhance responsiveness, and align supply with actual market demand, making it a key strategy in lean manufacturing and supply chain optimization.
Just in Time Production
Just-In-Time Production is a manufacturing approach where products are produced exactly when required, based on real-time demand rather than forecasts. This method reduces inventory levels, avoids overproduction, and increases flexibility in responding to market needs. Just-in-Time Production requires close coordination between procurement, production planning, and logistics to ensure the timely availability of materials, components, and workforce. The approach is widely used in lean manufacturing to improve operational efficiency, reduce waste, and optimize resources while maintaining high service levels. Characteristics:
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