CCB-29: Incorrect schematron rules for Bundle (type:External), Collection (type:External), and Product_External logical_identifiers

[jshughes]

🦄 Sibling SCR

NASA-PDS/PDS4-CCB#29

💡 SCR Summary

Problem Statement

External products, namely, Product_Bundle and Product_Collection of type: External and Product_External should have different rules for creating valid URNs to be used as logical identifiers (LIDs) than standard archive products. The purpose of External products are to provide a clear way to register products that otherwise wouldn't be in 'official' archives. The current set of schematron rules for validating LIDs across External products requires the archive-wide set of rules, meaning LIDs must conform to the enumerated list of known archive institutions (e.g., urn:nasa:pds..., urn:esa:psa..., urn:jaxa:darts..., etc.). Furthermore, the LID formations should adhere to the standard bundle formations where bundles have 4 segments, collections have 5 segments, and products have 6 segments (implying Product_External should be expected to be a member of an external bundle and collection).

Requested Changes

Add additional schematron rules pertaining to Product_Bundle (type:External), Product_Collection (type:External), and Product_External to allow URNs that are valid if and only if the initial 3 segments are not on the enumerated list of approved archives (e.g., urn:nasa:pds..., urn:esa:psa..., urn:jaxa:darts..., etc.).

Bundle_Member_Entry/reference_type will need to have an additional value of 'bundle_has_external_collection' to be able to reference member collections to an external bundle.

Product_Bundle (type:External)
- must have 3 colons (i.e., 4 segments)
- must start with 'urn:'
- not on the enumerated list of approved archives (e.g., urn:nasa:pds..., urn:esa:psa..., urn:jaxa:darts..., etc.).
Product_Collection (type:External)
- must have 4 colons (i.e., 5 segments)
- must start with 'urn:'
- not on the enumerated list of approved archives (e.g., urn:nasa:pds..., urn:esa:psa..., urn:jaxa:darts..., etc.).
Product_External
- must have 5 colons (i.e., 6 segments or fewer).
- must start with 'urn:'
- not on the enumerated list of approved archives (e.g., urn:nasa:pds..., urn:esa:psa..., urn:jaxa:darts..., etc.).

Applicable Attachments

The enclosure contains the updates the 1M00 schematron SCH file to validate the Requested Changes:

aaaIM_1M00_updates_20240904.zip

Added to parent epic?

Will do