Define mandatory field with checker rules?

[ClemensLinnhoff]

Describe the problem

As indicated by section 2.2.1 of the OSI documentation:

For the purpose of providing a complete interface, all existing fields should be set, unless not setting a field carries a specific meaning, as indicated in the accompanying comment.

The general case in the industry is however, that not all fields are set. It is completely up to the users, which fields to set in the interface.

Ask your question

Should some fields be marked as mandatory in any case? For example the version or the timestamp? If so, I propose to write this into the documentation of the respective field in machine readable form, so a checker can parse this as a rule, analog to rules like is_greater_than_or_equal_to.

[PhRosenberger]

It is definitely strange that "optional" fields are checked as "mandatory" by the validator. I like the proposal with machine readable additions to the fields for the validator. What are your thoughts @pmai and @jdsika ?

[jdsika]

I mean someting like "version number" and "time stamp" are somewhat mandatory?

[jdsika]

We need an initial draft for the logic of what is optional and what is not.
If radar then lidar not mandatory ?
What are the edge cases?
How to document this?

[PhRosenberger]

I will take this for the next CCB and come back with some thoughts on this.

[PhRosenberger]

We discussed this issue today and the CCB would encourage to start with a PR that works on the rules.yaml adding "is_set" and to start with the fields that are already marked or 100% clear to be mandatory.