Reusing warnings, cautions and notes with S1000D Issue 3.0
When working with Issue 3.0, authors can reuse a warning, caution or note (WCN) by referencing the WCN data modules from within the source document. When reusing WCN, the challenge is to achieve reuse without breaking the schema. When working with Issue 4.0, authors should use local/internal repositories. When working with Issue 4.1, they should use Common Information Repositiories (CIRs), which are external repositories.