Ecosystem model diagram refers to relationship which is not implemented

Expected Behavior

High-level ecosystem model diagram represents available relationships.

Current Behavior

In developing the system diagram map in #4502 , I realized that the dependsOn example shown in the sample model is not fully implemented in Backstage’s system model. There are partial aspects of it but it seems incomplete?

Possible Solution

Either:

1. Update the diagram to remove dependsOn as a relationship type until a future time in which this relationship is fully provided by the model.
2. Update the model to fully support it.

Steps to Reproduce

1. View the docs
2. Check the model types in the system: https://github.com/backstage/backstage/search?q=dependsOn and https://github.com/backstage/backstage/search?q=RELATION_DEPENDS_ON

Context

I may be wrong in terms of how it is implemented, but it does not seem to me that it would fully work, even if it’s roughed out in some constants?

Your Environment

• NodeJS Version (v12):
• Operating System and Version (e.g. Ubuntu 14.04):
• Browser Information:

[freben]

Right! I think the relation is sound, to the best of my knowledge it’s the one we decided to use for this purpose. So your solution number 2 would be appropriate. This is now a feature request ticket! 😃

We’d have to add a spec field to be able to either

• point out resources that your component depends on, here and here, or
• from a resource point out the components that depend on you, here and here

Or actually both could be supported! To fit different mental models or availability of source data for the field.

And then to update the relevant relation-generating processor.

[adamdmharvey]

@jmgrimes Agreed; there are definitely some formatting issues with SystemDiagram, some of which may be inherent to the library used for the DependencyGraph component itself. I wasn’t really able to get it to better dynamically fit. Hoping other iterations and bug fixes can continue to improve it for sure! But your adding support for your new modelling type is wonderful, so thx for that!