Include ODRL based policy part

[HLWeil]

Parallel to the plans of including an ODRL file in the ARC Scaffold, there should also be an alternative part in the ARC RO-Crate.

This should be pretty straight forward. The ODRL file will be formatted in JSON-LD and the top-level object will be a policy (i.e. a collection of rules). We could reference this ODRL part from the RO-Crate root dataset through the hasPolicy property.

flowchart TD

rootDataset[ARC/Investigation]

study[Study]
assay[Assay]
workflow[Workflow]
run[Run]
odrl[ODRL Policy]

rootDataset --hasPart--> study
rootDataset --hasPart--> assay
rootDataset --hasPart--> workflow
rootDataset --hasPart--> run
rootDataset --hasPolicy--> odrl

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[HLWeil]

@floWetzels @feserm @arendd @muehlhaus @joshmoore

[floWetzels]

I'm not sure if this is the right place to discuss this (probably rather here), but what is the advantage over simple license files? This might be a very basic question, I am not an expert on this topic. Can you elaborate on this, @HLWeil?

Regarding the technical part, I don't see a big issue here. I'm not a big fan of making the investigation a Policy, but I'm also not strictly opposed to it. It seems counterintuitive. It could simply be a lack of understanding from my side of the specific interpretation of the term policy though. However, I would argue that the diagram is a slight misrepresentation. Should the ODRL policy really be on the same level of "importance" as studies, assays or workdlows?