name, license, datePublished and description are SHOULD and not MUST properties

[salexan2001]

According to https://www.researchobject.org/ro-crate/specification/1.1/root-data-entity.html#direct-properties-of-the-root-data-entity, name, license, datePublished and description are SHOULD and not MUST properties.

Currently the rocrate-validator reports these as MUST properties and validation fails, e.g. for an eln-file from RSPace with:

  The following requirements have not meet:                                                                                                                                     
                                                                                                                                                                                
                                                                                                                                  [profile: RO-Crate Metadata Specification 1.1]
     [ ro-crate-1.1.8 ]: RO-Crate Root Data Entity REQUIRED properties                                                                                                          
                                                                                                                                                                                
      The Root Data Entity MUST have a name, description, license and datePublished                                                                                             
                                                                                                                                                                                
          Failed checks                                                                                                                                                         
                                                                                                                                                                                
       [    MUST 8.3    ]  Root Data Entity: `licence` property:                                                                                                                
                           Check if the Root Data Entity includes a license property (as specified by schema.org) to provide information about the                              
                           license of the dataset.                                                                                                                              
         Detected issues                                                                                                                                                        
         - [Violation on <./>]: The Root Data Entity MUST have a `license` property (as specified by schema.org).                                                               
                 SHOULD link to a Contextual Entity in the RO-Crate Metadata File with a name and description.                                                                  
                 MAY have a URI (eg for Creative Commons or Open Source licenses).                                                                                              
                 MAY, if necessary be a textual description of how the RO-Crate may be used.       

See also the discussion in this issue: TheELNConsortium/TheELNFileFormat#88

[kikkomep]

Hi @salexan2001 !

We have already discussed this issue in #14, where @elichad pointed out that, according to the specification, the properties you mentioned are REQUIRED and not merely RECOMMENDED. What is recommended (SHOULD) is solely the value of these properties, while their presence is mandatory.

You can also find an example of a minimal RO-Crate in the specifications, which illustrates that these properties must be present.

[salexan2001]

Thanks for the info!

This issue is currently discussed here: TheELNConsortium/TheELNFileFormat#88