How it works

Dundir is being designed to connect mathematical procurement optimization with physical verification at the gate and an accumulated contract memory. The professional evaluates and decides. The system is designed to compute, verify, and archive.

The lifecycle

The design in five steps, from specification to handover.

01Specificationdesign
02Solverresearch and design
03Gate checklab prototype
04Wkb dossierdesign
05Contract memorydesign

The design in five steps. None is built yet; the first edge hardware for step 03 runs on the bench.

Structuring the specification

In the design, an AI language layer reads your specification or tender document in plain language and extracts hard constraints, delivery schedules, budget ceilings, and CPR 2024 certification criteria. This is meant to be the only stage where a language model operates.

Deterministic solver calculates the optimum

The optimization engine is to weigh unit price, delivery schedules, freight miles, and carbon intensity. Pure mathematics by design: identical inputs must yield identical outputs every time, with an audit-ready reasoning trail. The solver is in research and design.

Smart gate verification and 3-way matching

The goal: at the site gate, mobile or fixed edge OCR reads delivery tickets and truck license plates, and the system matches purchase order, delivery receipt, and vendor invoice. Today the first edge hardware runs on the bench, without a camera yet. OCR and matching come next.

Real-time Wkb handover dossier compilation

Inspection records, delivery receipts, and quality stamps are to be linked automatically into the statutory Dossier Bevoegd Gezag under the Dutch Wkb regulation, so that no documentation goes missing at final municipal commissioning.

Feedback to accumulated contract memory

Actual supplier delivery punctuality, defect frequencies, and unit price variances are to be logged automatically and to recalibrate the scoring parameters for the next tender.

Data sovereignty

Why it is designed to run on your own infrastructure.

Deployment design: data and models stay inside your networkdesign

Construction data, cost estimates, and commercial terms are strategically sensitive. Dundir is designed to run fully on-premises, on your enterprise servers or local jobsite edge hardware:

Sovereignty

Designed to keep your procurement data and pricing history on your internal network. The design has no data egress to commercial cloud providers and trains no external models on your records.

Continuity

Designed to work at the jobsite gate without an internet connection, so network outages and third-party price or policy changes do not stop the work.

Compliance

Designed to fit within the Dutch BIO and the GDPR, without a cloud exception procedure.

Local deployment is an operational necessity rather than a preference. Research at Cedervall showed that public cloud models were unusable due to high subscription costs, third-party API dependencies, and mandatory internal data isolation. Dutch public bodies work within the Government Information Security Baseline (BIO). A local system fits inside that framework without a cloud exception.

Friðriksson 2025, KTH · Van Duuren 2025, TU Delft · BIO 2019

Explainability

Every calculation and gate inspection must be verifiable.

Deterministic

Identical inputs yield identical outputs. Given identical inputs, generic enterprise AI moved one subcontractor total by up to 8,354 euro between sessions.

Hamppi 2025, Aalto University · Atil et al. 2025

Which constraints were enforced, what trade-offs were balanced between freight transit distance and material unit costs, and why a supplier was selected: the system is designed to record the exact formula and parameter weights.

The same rigor applies at the gate: every delivery ticket scan and 3-way match decision is to be logged with timestamps, reference IDs, and variance percentages.

For municipalities, this is meant to support the reasoning required under Public Procurement Act Article 2.130. For contractors, it is to provide a documented file during subcontractor disputes or claims.

Boundaries

What the system does not do.

Dundir does not make autonomous business decisions and does not replace human experts. The estimator, buyer, and site superintendent maintain full control.

The platform is meant to take over clerical data entry and manual matching so professionals can focus on negotiations, quality inspections, and strategic vendor management. Formal sign-off and legal accountability remain with your organization.

The system is to calibrate against your own transaction history, so that accumulated vendor intelligence stays within your firm when experienced staff leave.

Honest about the stage None of the three modules is a product yet. The procurement solver is in research and design, the smart gate is a lab prototype on the bench, the contract memory is a design. Partners who join now help decide what gets built first.

Four ways in

Where you come in depends on what you need.

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