Just-in-Time (JIT) is a production philosophy that aims to deliver what is needed, in the right quantity, at the exact moment, eliminating excessive inventories, waste, and idle time. Its focus is on synchronizing production processes with real demand.
Produce only what is necessary, when necessary — this is the principle of Just-in-Time.
🧩 How does Just-in-Time work?
In the Just-in-Time model, each stage of production replenishes the previous one with precision, in a pull system rather than a push system. This means that a new piece is only manufactured or moved when there is real consumption in the next stage.
🔄 Common steps in JIT systems:
- Pull production based on real demand (Kanban)
- Continuous and balanced flow of operations
- Elimination of intermediate inventories (WIP)
- Reduction of lead time and improvement in inventory turnover
🏭 Benefits of Just-in-Time in the industry
| Benefit | Direct result in operation |
|---|---|
| Reduction of inventories | Less idle capital and risk of obsolescence |
| Increased productivity | Synchronized operations and continuous flow |
| Rapid detection of bottlenecks | Problems become visible and are quickly corrected |
| Consistent quality | Less rework, fewer defect accumulations |
| Flexibility | Greater responsiveness to demand variations |
⚙️ How AJOLLY Testing applies Just-in-Time
AJOLLY Testing incorporates the principles of Just-in-Time in test engineering and automation, with solutions that reduce cycle time, increase traceability, and improve operational fluidity.
🚀 Practical applications:
- Test benches projects with reduced setup time
- Jigs that are modular and quick to operate for product switching
- Integration with MES and dashboards to release tests as needed by the line
- Kanban and Andon systems to signal production demands in real-time
- Minimization of buffers and DUTs inventories in WIP
🔗 Integration with Lean and digital systems
JIT works in harmony with other methodologies such as:
- Kanban: visual signaling of production demand
- Andon: visual alerts for interruptions and requests
- 5S: organization of the work environment for fluidity
- MES/ERP: orchestration of order and test flow
With AJOLLY Testing, Just-in-Time is not just a philosophy — it is a technical strategy implemented with traceability, real-time data, and applied engineering.