# \#ifc6

**URL:** https://forums.buildingsmart.org/tag/ifc6/89.md

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## [IFC as four main modules, each optional](https://forums.buildingsmart.org/t/ifc-as-four-main-modules-each-optional/2519)

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**Author:** [@nn1](https://forums.buildingsmart.org/u/nn1)\
**Replies:** 6\
**Last updated:** [March 22, 2020, 5:09pm UTC](https://forums.buildingsmart.org/t/ifc-as-four-main-modules-each-optional/2519 "2020-03-22T17:09:03Z")

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IFC is about spatial, physical and process entities. These are the three modules which an application may or may not support. At the bottom, there are plenty of questions about the multiple geometric representations th…