Split-up ISA hierarchy

[HLWeil]

Should we split up the hierarchical ISA structure into three parts?

flowchart TD

root["RO-Crate root"]
i["Investigation"]
s["Study"]
a["Assay"]

root --hasPart--> i 
i --hasPart--> s
s --hasPart--> a

could be split up into

flowchart TD

root["RO-Crate root"]
i["Investigation"]
s["Study"]
a["Assay"]

root --hasPart--> i 
root --hasPart--> s
root  --hasPart--> a

This would have two-fold advantage:

• This would more closely resemble the file/folder structure of the ARC
• We could have three different profiles(#4), that each have a inherent value on their own

Would this break other constraints? @floWetzels @muehlhaus

[HLWeil]

Definitely implemented in https://github.com/nfdi4plants/isa-ro-crate-profile