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