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Restaurant tech glossary

Plain-language definitions for the POS, kitchen-display, fiscal and compliance terms that come up across SterkChef and the wider restaurant SaaS landscape. Each entry is two-to-three sentences — enough to answer a quick question without scrolling.

Apps and surfaces

POS
Point of Sale — the cashier terminal where orders are entered, payments are taken and receipts are printed. SterkChef POS is offline-first and pairs with country-specific fiscal devices.
KDS
Kitchen Display System — a screen in the kitchen that replaces paper tickets. Orders are routed to the relevant station (hot, cold, bar, pastry), prep time is tracked per item and late tickets turn red.
Kiosk
Self-service ordering terminal in the venue. The guest browses the menu in their own language, builds a cart and pays without speaking to a cashier.
Backoffice
The web admin where managers configure menus, taxes, staff, branches and run reports. Not used during service — its job is setup and reporting.
Mini-POS
Compact POS variant designed for single-operator venues such as coffee shops or pop-ups. Uses a local SQLite store for offline resilience.
Waiter app
Tablet app for floor staff. The waiter enters the order at the table, the kitchen sees it immediately and the bill flows back to the same tablet for closure.
Delivery app
Mobile app used by couriers to receive dispatches, navigate to the address and confirm handover. Built on React Native so it runs on iOS and Android with one codebase.
QR ordering
Customer-facing browser app reached by scanning a sticker at the table. Guests browse and pay without a cashier — useful for venues with thin floor staff.

Fiscal devices and e-invoicing

FDM
Fiscal Data Module — Belgium's certified "black box" that signs every receipt for hospitality VAT purposes. Mandatory above the turnover threshold; SterkChef pairs with the certified device on day one.
GKS
Geregistreerd KassaSysteem — the formal name for the Belgian registered POS regime that the FDM is part of.
TSE
Technische Sicherheitseinrichtung — Germany's mandatory hardware security module for cash registers. Each transaction is signed by the TSE so the audit trail can't be altered after the fact.
NF525
French certification standard for cash-register software. NF525-certified systems guarantee tamper-evident receipt sequencing.
VeriFactu
Spain's tax-agency framework for cash-register systems that voluntarily send each invoice to the tax authority in real time. Becoming the de-facto standard.
TicketBAI
Tax compliance regime for Spain's Basque Country (Álava, Bizkaia, Gipuzkoa) requiring each invoice to be signed and chained, then forwarded to the regional tax authority.
RT
Registratore Telematico — Italy's electronic cash register that transmits daily takings to the Agenzia delle Entrate.
SDI
Sistema di Interscambio — Italy's national e-invoicing platform. All B2B invoices in Italy must pass through SDI.
ÖKC
Ödeme Kaydedici Cihaz — Turkey's electronic cash register required for retail and hospitality. SterkChef supports the GİB-certified ÖKC range.
Peppol
Pan-European Public Procurement OnLine — the standard network for exchanging structured e-invoices and orders across borders. SterkChef sends and receives via the Peppol BIS Billing 3.0 profile.
Peppol BIS 3.0
Business Interoperability Specification — the current Peppol profile that defines the UBL invoice structure, mandatory fields and validation rules.
UBL
Universal Business Language — an OASIS-standard XML format used by Peppol and many national e-invoicing schemes. SterkChef emits UBL 2.1 documents.
e-Fatura
Turkey's e-invoicing system for B2B transactions above a turnover threshold. SterkChef formats invoices to the GİB schema.

HR, safety and data

Dimona
Belgian declaration system that registers every employment start, end and shift with the social-security authority. Filed electronically before the employee starts.
CAO
Collectieve ArbeidsOvereenkomst — Belgian collective labour agreement covering wage scales, hours and conditions per sector. SterkChef HR maps employees to the right CAO automatically.
HACCP
Hazard Analysis and Critical Control Points — the food-safety framework used across hospitality. SterkChef writes cold-chain and prep-temperature logs to the HACCP record.
GDPR
General Data Protection Regulation — the EU-wide data-protection law. SterkChef stores guest, loyalty and HR data with explicit consent and configurable retention windows.

Operations and tech

FIFO
First-In, First-Out — inventory rotation where the oldest stock is used first. The default policy for non-perishables.
FEFO
First-Expired, First-Out — inventory rotation by best-before date rather than receive date. The default for perishables — SterkChef applies it automatically across recipes.
Cold chain
End-to-end temperature control from supplier to plate. Breaks in the chain trigger HACCP alerts in SterkChef.
IoT (cold chain)
Internet-of-Things sensors that report fridge / freezer temperature on a polling interval. SterkChef ingests the readings and writes them to the HACCP log.
Tauri
Rust-based framework for building native desktop apps from a web codebase. SterkChef POS, KDS, Kiosk, Takeaway and Mini-POS ship as Tauri 2 apps so they run on Windows / macOS / Linux without Electron's footprint.
PWA
Progressive Web App — a website that can be installed and runs offline. SterkChef POS doubles as a PWA so it can be deployed on hardware that doesn't support a native install.