Use Case: COBOL Migration
Extract critical legacy rules without losing their intent.
BRIK64 isolates COBOL business rules as bounded blueprints before teams rewrite, emit, or retire legacy code paths.
Legacy rewrites hide business-rule drift.
A COBOL migration can preserve screens and reports while silently changing the rule that calculates money, eligibility, or settlement.
Interest calculation, ledger updates, and eligibility decisions may be split across copybooks, batch jobs, and implicit formats.
A rewrite can change decimal precision, overflow behavior, sort order, or reject handling without looking like a bug.
Migration reviewers need a clear artifact showing the extracted rule, its input envelope, and the target handoff.
Modernization needs a verified logic bridge, not a blind rewrite.
The goal is not to celebrate a new language. It is to preserve the rule that keeps the business ledger consistent.
BRIK64 intervention
Three concrete steps describe where BRIK64 enters the workflow and what remains inspectable.
Lift the computational core
Identify the COBOL slice that computes a business decision and represent that slice as a bounded circuit.
Declare domain behavior
Capture decimal scale, allowed ranges, rounding behavior, and invalid states before producing target code.
Emit with provenance
Emit modern targets from the blueprint while preserving a trace to the extracted rule and its declared domains.
What the team gets
Claim-safe outcomes framed as workflow capabilities, not unsupported customer results.
Migration unit
Business rule
The team reviews the actual rule being moved, not only translated code.
Review path
Domain-aware
Precision, ranges, and reject states are visible before handoff.
Target handoff
Blueprint-linked
Generated output stays tied to the extracted COBOL rule.
Formal boundary
BRIK64 supports preservation and verification of declared computational logic. It does not certify the complete mainframe environment, unmanaged data quality, or target runtime integration.
Covers
Extracted computational rules
Does not cover
Entire mainframe estate
Covers
Declared numeric domains
Does not cover
Unmodeled operational procedures
Covers
Blueprint-to-output provenance
Does not cover
Every target platform dependency
Modernize the rule, not just the syntax.
Use BRIK64 to extract high-risk COBOL rules into blueprints that can be reviewed before modernization.