BOQ & Estimation in OpenConstructionERP

Workflow

1. Pick a cost base — load it (see oce-load-cost-bases) so items are searchable.
2. Create the BOQ — POST /api/v1/boqs with project, currency, classification standard (DIN 276 / NRM / MasterFormat / regional).
3. Find items — GET /api/v1/costs/?region=TR_NATIONAL&q=duvar (SQL search) or the semantic path (/qdrant-search when Qdrant is on). Every item carries a components[] breakdown (labour/material/machine with norm quantities and unit prices).
4. Link quantities — either manual entry, BIM bulk-link (POST /api/v1/bim/elements/bulk-link style endpoints aggregate area/volume/length per element), or PDF/DWG takeoff measurements.
5. Validate — POST /api/v1/boqs/{id}/validate/ runs rule packs (BOQ quality, DIN276, NRM, GAEB) and returns violations; quality score updates live.
6. Export — GAEB X83/X84, XLSX, JSON for tendering.

Cost item anatomy (what the platform stores per item)