OptimalSPARES™Spares and materials

Product → Stocking models

Stocking models.

Once criticality has set the service level, inventory theory sizes the stock: how much to order, when to reorder, and how much buffer to carry.

EOQReorder pointSafety stock
Store 01 · stocking
88%
Service level95%
Criticalityranked
Duplicates−47%
Min/Maxset
Duplicates−47%
Value−9%

Illustrative view. Value-delivery graphic for the demo build.

What it does

The right model for every part.

Fast movers follow classical EOQ, slow and insurance spares follow Poisson or a one-for-one policy, so each part is sized on the maths that fits it.

Order quantity and reorder

EOQ balances ordering against holding, and the reorder point covers lead-time demand plus safety stock.

  • EOQ
  • Reorder point
  • Min and max

Service level and z

The criticality-driven service level sets the z multiplier on the safety stock.

  • 90 to 99% plus
  • z from service level
  • Per criticality

Slow movers

Poisson demand for intermittent parts, and one-for-one for critical or costly slow movers.

  • Poisson demand
  • (S−1, S) policy
  • Insurance spares

In the app

What you see.

This feature maps to live views in the OptimalSPARES™ demo.

See it on your own assets.

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