# \#express

**URL:** https://forums.buildingsmart.org/tag/express/62.md

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## [IFC Schema](https://forums.buildingsmart.org/t/ifc-schema/3540)

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**Author:** [@Fa-Jh](https://forums.buildingsmart.org/u/Fa-Jh)\
**Replies:** 1\
**Last updated:** [April 25, 2021, 4:38pm UTC](https://forums.buildingsmart.org/t/ifc-schema/3540 "2021-04-25T16:38:20Z")

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Hi everyone, I want to know how to start learning about IFC? There is not a structured manual about IFC on the WEB.

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## [Industry Foundation Classes are a Data Schema, not a file format](https://forums.buildingsmart.org/t/industry-foundation-classes-are-a-data-schema-not-a-file-format/1398)

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**Author:** [@jonm](https://forums.buildingsmart.org/u/jonm)\
**Replies:** 9\
**Last updated:** [November 11, 2019, 12:01pm UTC](https://forums.buildingsmart.org/t/industry-foundation-classes-are-a-data-schema-not-a-file-format/1398 "2019-11-11T12:01:47Z")

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Often a discussion topic seems to divert to the topic of IFC being STEP/Express and it’s evident that many involved would like to see more modern exchange formats. Here’s a discussion thread particularly on this topic. …