I frequently hear that the IFC schema is too limited. Well, no doubt, it does have its limits. However, quite often it is the critics’… Read More »Beyond the Schema

We learned so far that IFC is all about objects, relationships and properties. But we know that this is not enough. For many use cases… Read More »Hatching in IFC

One of the most important tasks during the design and construction of a building is to document the decision making. Who decided when about what.… Read More »Get Your IFC Model Approved!

In many earlier articles I mentioned the distinction between IFC as a file and IFC as a schema. When I did this is always rendered… Read More »The Many Forms of openBIM Data

Misconceptions everywhere Similar to 4D-BIM – which we covered recently – the concept of estimating in a BIM environment is also vastly misunderstood. Most of… Read More »IFC and costs – 5D-BIM demystified

Let’s be honest: How do we normally start a new design project? By modeling walls? Not really. We usually start with a top down down… Read More »4D-BIM and IFC

While browsing through the IFC documentation – yes, I sometimes do that for fun – I one day stumbled over a concept that not many… Read More »CAD layers in IFC

IFC offers quite a few ways to describe solid geometry: • you can use primitives like blocks, cylinders etc. and combine them using boolean operations like union, difference etc.… Read More »Boundary representation in IFC

One main advantage of BIM is that you have all your data in one place (or in interconnected for places). While properties are important to… Read More »External Documents in IFC

A classification is not just another property, although many just see it that way. That is a pity and the source of many problems when… Read More »IFC – Classified!