Standards
Built on the standards your fleet already speaks.
Dryline is a vending management system, so it is built on the vending industry's own standards for data, telemetry, payments, and products. Here is exactly which ones, and the precise language we use for each.
Data interchange
NAMA VDI 2.0Your data moves on an open standard.
NAMA VDI 2.0 is the vending industry’s interchange format for moving locations, machines, products, and layouts between systems. Dryline is built to it at document revision 10.7, and uses it in both directions.
It powers switching: your setup comes in from a NAMA VDI 2.0 file, and your products, locations, and machines export back to one. See exactly what carries in each direction on the Switching page.
Import
Locations, machines, and products from a VDI 2.0 file or a CSV; planograms and opening stock from a VDI 2.0 file.
Export
Your products, locations, and machines back out to a VDI 2.0 file or a CSV. No lock-in.
File-based today
Import and export are file-based. The standard also defines a real-time exchange API; more message types come online as partner integrations go live.
Machine telemetry
DEX / EVA-DTS 6.2.2The machine’s own meters, read straight.
DEX is the audit data a vending machine keeps on itself: cumulative sales and vend counts per selection. Dryline’s parser targets EVA-DTS 6.2.2 and tolerates older and vendor-specific variants, so the reader’s DEX reads feed reconciliation and inventory automatically.
Kept verbatim
Every DEX read is retained exactly as received; segments we do not interpret are counted, never discarded.
Validated, not assumed
Each read carries a validation status, so a partial or malformed file is flagged for review rather than trusted blindly.
Feeds reconciliation
DEX meters are one of the three records checked in live three-way reconciliation, against dispenses and the settlement ledger.
Payments, hardware, and products
The interfaces on the machine itself.
Cashless payments and product identification also ride on industry standards, so the reader fits your machines and your catalog fits the wider retail world.
MDB
Multi-Drop Bus, the standard peripheral interface on modern vending machines. The Rain Pay reader connects over it, alongside the coin mechanism and bill validator already there.
EMV, contactless, magstripe
The QD3 takes EMV chip, contactless tap, and magstripe. Cards are read and processed by the reader and Rain Pay; what reaches Dryline is the vend tied to the product and the settlement record.
GS1 barcodes
Products carry GS1 barcodes (GTIN), several per product, so scan-to-fill and product lookup match the same codes the rest of retail uses.
How we describe compatibility
We choose these words carefully.
Standards language is easy to inflate, so we hold ourselves to precise terms. Dryline imports from and exports to NAMA VDI 2.0, and is built to the published specification at document revision 10.7. We do not say “NAMA certified”: a formal certification program is separate, and we will not claim one we do not hold. Where a capability has limits, we say so, and anything we have not tested we route to a setup review instead of guessing.
Common questions
Standards, answered
- Is Dryline NAMA certified?
- No, and we do not claim to be. Dryline is built to the NAMA VDI 2.0 specification (document revision 10.7) and imports from and exports to NAMA VDI 2.0 files, but a formal certification program is separate and we will not claim a certification we do not hold. We describe what we do precisely: imports-from, exports-to, and based-on the specification.
- Which version of DEX do you read?
- Our parser targets EVA-DTS 6.2.2 and tolerates older and vendor-specific variants. Every DEX read is kept verbatim, segments we do not interpret are counted rather than discarded, and each read carries a validation status so a partial or unusual file is flagged instead of silently trusted.
- Do I need a specific machine or reader?
- The machine needs to support MDB cashless, the standard peripheral interface on modern vending machines, and the Rain Pay reader (a Dejavoo QD3) connects over it. Most machines built in the last couple of decades support it. See the Compatibility page for the full picture.
- Can I get my data back out?
- Yes. Dryline exports your products, locations, and machines as a NAMA VDI 2.0 file or a CSV. The same standard that brings your data in takes it back out, so you are not locked in.
Have a standards question we did not cover?
Tell us what your current system speaks and we will confirm exactly how it maps to Dryline. No slides, no pressure.