Using a simple "Page Selection DSL", create complex collections of pages across multiple SMWs.
Then, to these page collections:
Extract page collections and revision manage the entire page collection as one entity using Git.
Inject page collections from repositories.
Apply bulk changes to page wikitext, e.g. renaming templates, property names and values, order of template calls, etc. using a simple "Wikitext Management DSL" in ways that are repeatable, idempotent, reusable, reversible, logged and support error recovery (referential integrity, consistency).
Compare page wikitext between corresponding page instances on several SMWs.
Test terminological and assertional domain and task ontologies.
Monitor page collection aspects for quality management: coherence, consistency, integrity, completeness.
For details see https://smw-cindykate.com/main/structured-data-management-suite. This is also part of SMW Synchronization (CFMABS).