IFC delivery and ISO 19650
Turning model quality into an agreed routine: ISO 19650 checks, BEP clauses, acceptance criteria and what to hand over with a model.
All 8 guides on this topic
"This model is unusable" versus "the model is fine" is an argument with no ending. A one-page acceptance table, agreed before the first delivery, turns it into a five-minute check with a documented outcome.
A marked-up screenshot works from one angle only. Sketch on the model itself and the redline stays on the corner it refers to, from every side. Try it on the live example, then with your own IFC.
Seven fields and six hyphens decide whether a model can be found, sorted, checked and federated without anybody opening it. What each field means, the role codes, where status and revision belong instead — and the naming mistakes that quietly break a CDE.
BCF is supposed to make an issue survive the trip between tools. In practice the camera lands underground, the section box vanishes and the labels are gone. The reasons are few, specific, and fixable — and knowing them tells you which tools to trust.
COBie is where good BIM goes to die: a spreadsheet produced in the last week of the project, full of blank cells, that the facilities team never opens. Extracting it from the IFC early — and measuring how complete it is — changes that.
Most BEPs say models must be "of suitable quality" and nothing else — which is why quality arguments never end. Four short clauses, written to be pasted, that turn an opinion into a testable condition.
A delivery is a claim: this model is fit for this purpose at this revision. Evidence is what turns the claim into something the receiver can check without repeating your work — and what stops the same argument happening twice.
ISO 19650 specifies information requirements for BIM deliveries. Here is what that means for your IFC files — from filename conventions to embedded project metadata — and how to verify compliance before submission.
Tools for this topic
- 3D sketch studio — Draw in 3D with a pen or a finger, over your models if you like. Free, in the browser, no account.
- IFC Validator — 44 quality rules and a Health Score, in your browser — the file is never uploaded.
- Fix guides — One page per validation rule: what it means, why it fails, how to fix it in your authoring tool.