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INDUSTRY FIELD GUIDE

Vending machine slot and product substitution data for AI

A vending machine’s slot plan may still name an earlier item after restocking.

By Fiund · Updated 2026-11-05

NAICS 445132 · Vending Machine Operators

A vending machine’s slot plan may still name an earlier item after restocking. FDA publishes labeling resources for vending machine operators. A practice fixture can test whether software distinguishes the assigned and observed product. FDA vending machine labeling resources

Build a mock four-slot rack with generic packages. Record an approved substitution in one slot and a photo showing an unlabeled package in another. Ask which change is supported and where product identity needs confirmation. Score slot, image and inventory update separately.

Use nonfunctional props and original product cards. Exclude live machine locations, key or access details, payment logs and customer footage. Ask the operator and performers to approve reuse.

Describe a staged vending restock sample

Original Fiund exercise

Approved plan, observed package and inventory update can disagree at one slot

A nonfunctional four-slot rack uses generic original packages. No live machine, location, lock detail, payment, customer footage or actual sales activity appears.

Fictional records supplied to the evaluator
RecordSourceWhat it records
VS1Mock slot planSlots 1–4 originally assigned A, B, C, D. Approved update changes slot 2 from B to E; other slots unchanged.
VS2Restock image annotationReadable E in slot 2 matches approved substitution. Slot 3 shows an unlabeled prop; no visible C code.
VS3Inventory exportOriginal mock export still says slot 2=B and slot 3=C. No refresh event or independent slot-3 identity check supplied.

Question for the model

Which substitution is supported, which record is stale for slot 2, and can slot 3's identity be confirmed?

Show the reference answer and checks

VS1 and VS2 support the approved and observed E substitution in slot two. VS3's B field is stale against that linked update and observation. Slot three remains assigned C in the plan and export, but its unlabeled observed prop cannot be identified as C from those intentions alone. Preserve assigned, observed and inventory-recorded states and request a slot-three check rather than infer every restocked item from the layout.

  • Using a stale inventory row over a confirmed slot-specific substitution.
  • Treating planned slot assignment as identification of an unlabeled observed package.

Fields to preserve

Slot and plan revision
Defines intended placement.
Observed package label and visibility
Supports physical identification.
Inventory update state and exception
Preserves stale records.

Test another case

Refresh the export to E for slot two while keeping slot three unlabeled. Require the first discrepancy to resolve independently of the second.

Use nonfunctional owned props and cleared performers. Exclude real machine access, payment logs and customer data.

Download this fictional example and answer key (JSON)

Discuss a contribution

Describe the sources you control, the task they could support and what has already been checked. Use the existing-data assessment for an archive or the collection brief for a new recording project. The contributor agreement defines Fiund’s licensing authority and compensation. A guide or fictional exercise does not establish an accepted collection or a sale.

Primary sources and further reading