Child with multiple parents

[marekbatelka]

I did not find the way how to create structure of documents with multiple parents.

We have situation where there are multiple sources of HL requirement from customer and one unifying system document on our side to "merge" all these requirements..

Example

DOC1 -|
      |
DOC2 -|
      |
      | -- REQ

Problem is I cannot link REQ to two parents.

[rickeywang]

I encountered a similar problem as well. Here is what I changed for my own build to enable linking items in all sorts of creative ways.

https://github.com/rickeywang/doorstop/pull/1/files#diff-df3c98ba20e3a4a7be5b82aebf509681

[jacebrowning]

I don't think we'll do this. Multiple parents drastically changes the way Doorstop handles validation.

Feel free to reopen if you think this is necessary.

[Tubbles]

I would like to be able to recommend this to project managers of functional safety projects, but I am afraid that this limitation severely hinders adoption for medium-sized projects and up. Granted, I have not fully analyzed the ins and outs of this tool, so please let me know if I am thinking about this the wrong way.

[jacebrowning]

Is any of @rickeywang's example enough to support your use case?

[neerdoc]

@jacebrowning Is this a feature that we will include or not? Browsing through the issues it seems that sometimes you close the issue/question and state that it will not happen, but here you have added the "feature" and "help wanted" labels.

Coming from avionics safety critical software myself, I would love to see the possibility to link to multiple parents. Of course, the validation is still very much required to work as well.

So a bit of clarification is needed!

[jacebrowning]

@neerdoc essentially it comes down to how involved it will be to implement such a feature, since Doorstop was not originally designed to support this use case. If someone can get a patch working without breaking the existing validation and publishing, I think we should consider it.

[ckolumbus]

Pleas have a look at the comment in #509, i've a solution proposal with implementation spike

[ckolumbus]

@marekbatelka I've implemented a suggestion in PR #569 , could you please have a look whether this fits your scenario?

[danieleades]

This would be good to see. I work in an environment where a single product requirement may satisfy upstream requirements from multiple projects. I need support for multiple parents for proper traceability