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Express language

1. C by c4rlosdias on 2 Dec 2020, edited 2 Dec 2020 #

   Hey guys, what is the importance of having a good knowledge of the EXPRESS language to understand the ifc scheme well?

2. M by Moult on 2 Dec 2020 #

   @c4rlosdias not particularly important. You can still get a lot of out the schema whilst treating EXPRESS as an abstract thing. buildingSMART is also migrating towards UML to help make the schema a bit easier to serialise too, I believe.

3. C by c4rlosdias on 2 Dec 2020 #

   yes, but some things are very particular to the schema in express language, like inverse relations, for example

4. M by Moult on 2 Dec 2020 #

   @c4rlosdias the concept of inverse relationships are present in other technologies too, I guess. If someone is technical enough to read the IFC specification, I would suggest they check out the express definitions, since express is relatively simple to pick up and would help them understand express specific things like select.

   If a user wants to know the schema and simply see the classes and attributes available, it's probably not too important to know express.

5. C by c4rlosdias on 2 Dec 2020 #

   Thank's @Moult !

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