Describes and DescribedBy relationship

[Srikanth1]

Is it possible to add CAD Documents in the 'Description' relationship? The help center suggests so.

https://support.ptc.com/help/wnc/r12.0.2.0/en/#page/Windchill_Help_Center%2FObjectOviewObjectRelationships.html%23

However, we could only create/search for WTDocs in the described by table of a part. 
Any insights will be helpful

[Fadel · Accepted solution]

The links between , EPM and part are different and more complicated 

the given link WTPartDescribeLink is using roles as below

wt.doc.WTDocument

describedBy

wt.part.WTPartDescribeLink

describes

wt.part.WTPart

The link between parts and cad can be for different associations (image,owner,content..) and it is created by actions like build structure (starting from CAD assembly or from Part BOM) or by auto-associate ..

 One of the tables that holds cad-part is EPMBuildHistory 

EPMBuildHistory has two roles one is to WTPart, the other is to EPM 

For content association we have below table 

Hope this helps, 

[Srikanth1]

Thanks Fadel.

I agree with your explanation above and thats my understanding on the part-EPM doc associations.

I am however trying to understand the reference of the CAD(EPM) documents in the Description relationship details in help center. 

https://support.ptc.com/help/wnc/r12.0.2.0/en/?_gl=1*o9e91n*_ga*MjE0MjU1MDM0MC4xNjg3Mjc1Mjc0*_ga_7NMP2MSYPM*MTcwMDY3MDgyOS42NC4xLjE3MDA2NzM2NDMuNDEuMC4w*_ga_1QBT6P6HR1*MTcwMDY3MzYyNC4xMjkuMS4xNzAwNjczNjQzLjQxLjAuMA..#page/Windchill_Help_Center%2FObjectOviewObjectRelationships.html%23 

[Fadel]

this an issue with the help center , kindly open a support case , one of my colleagues will raise a documentation  SPR to correct it .

The WTPartDescribeLink is WTDoc<-> WTPart 

even on that table the insert new is offing only WTDoc, and if you try to customize the table view , you will see only

WTdoc and its subtypes 

[Srikanth1]

Cool, I will go ahead with raising a case for the correction. Thank you for the prompt responses. 

[Fadel]

Thank you for confirming , would you also mark this thread as resolved