license: other
language:
- en
tags:
- mainframe-modernization
- cobol
- cics
- static-analysis
- verification
- reproducibility
- legacy-modernization
pretty_name: AWS CardDemo No-Cost Modernization Proof
AWS CardDemo No-Cost Modernization Proof
This repository publishes a reproducible proof bundle for a local modernization run against AWS CardDemo. It is intentionally not a claim of live COBOL/CICS all-path runtime equivalence.
Plainly: this is not a claim of live COBOL/CICS all-path runtime equivalence.
The practical claim is narrower and receipt-backed: we pushed the free/no-cost verification path as far as we reasonably could. The remaining validation requires a real or licensed-compatible legacy runtime for COBOL/CICS/VSAM/JCL execution.
In short: without paid/licensed legacy runtime access, this is as far as this proof can honestly go.
Headline Result
- Reviewer posture:
strong_pre_runtime_confidence - Ready for pre-runtime review:
True - Current static/source-oracle parity:
B=50 / F=0 / gaps=0 - A-grade live runtime parity:
A=0 - A-grade promotion gate:
do_not_promote - A-grade live matches accepted:
0 - A-grade live matches missing:
50 - Paid runtime used:
False - Legacy runtime equivalence claimed:
False
Source Identity
- Upstream source repo:
https://github.com/aws-samples/aws-mainframe-modernization-carddemo.git - Upstream source commit:
59cc6c2fd7ebd7ef7925cad552a01a4b8b6e4d5e - Source files hashed in receipt:
204 - Source hash digest:
0703f97553bde0f5bd170aa95ec8c771a975b397be7d9e8088ec6fbf31d333c2
The upstream AWS CardDemo source tree is not copied into this repository. Clone it from the upstream project at the exact commit above when reproducing.
Evidence Included
final_proof/FINAL_PROOF_README.md: technical reviewer entry point.final_proof/FINAL_RECEIPT_SUMMARY.json: machine-readable receipt summary.final_proof/NO_COST_CONFIDENCE_REPORT.json: no-cost confidence evidence and methodology.final_proof/A_GRADE_PROMOTION_REPORT.json: strict A-grade gate and why it does not promote without live traces.final_proof/STATIC_ORACLE_REPLAY_REPORT.json: executable modern replay over static/source-derived oracles.METHODOLOGY.md: evidence method and proof boundaries.REPRODUCIBILITY.md: one-command local checks.DUE_DILIGENCE.md: quick reviewer checklist.modern_code/: modern Python/SQLite implementation snapshot and proof tooling.
No-Cost Evidence Summary
- Capability count:
50 - Static/source-oracle-ready capabilities:
50 - Capability source references:
101 - Golden traces:
34 - Edge cases:
40 - COBOL programs scanned:
44 - CICS programs identified:
25 - Free GnuCOBOL probe candidates:
17
The Unpaid Boundary
We cannot honestly push this to live runtime parity without access to a real or licensed-compatible legacy execution environment. That means one of:
- AWS Mainframe Modernization runtime access,
- Micro Focus / Enterprise Server-style runtime access,
- UniKix or equivalent runtime access,
- a real z/OS/CICS/VSAM/JCL endpoint,
- or another compatible environment capable of executing the original legacy paths.
Without that, the correct remaining statement is: the modernization is strongly supported by source-derived static oracles and executable modern replay, but final production-equivalence validation must happen on the legacy runtime owner’s environment.
Repository Type
This is published as a Hugging Face dataset-style proof artifact, not a trained model and not a hosted runtime.
HF repo target used for staging: cjc0013/aws-carddemo-no-cost-modernization-proof