Framework Engineering Research

An open index of evidence, theory, and practice

research-document

Migration Differences

Research Area
General Research
Status
draft
Version
0.1
Priority
medium
Updated
2026-07-22
Source
research/evidence-runs/ECR-000001-multi-layer-procedural-representation/comparison/generated-shared/migration-differences.md

Migration Differences

Previous comparator reference: comparison/generated-v3/ecr-000001-comparator-v3-report.md

  • Shared engine output is expected to be directionally similar rather than byte-identical.
  • Shared engine primary records: 8/9.
  • Shared engine structural profile: literal=mostly_stable, dimensional=mostly_stable.
  • Shared engine recognition rows: 8.
  • Review the old Comparator v3 report and the shared-engine summary side by side before using migration output for research decisions.