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COBOL Documentation, Analysis, and Dependency Mapping in Hours

COBOL Documentation, Analysis, and Dependency Mapping in Hours

AI-driven COBOL documentation, dependency maps, and business-rule extraction for enterprise estates

Automate COBOL documentation and map dependencies across CICS, JCL, DB2, and batch flows with deterministic static analysis and SME validation. Capture COBOL business rules for audits and modernization.

20+
Enterprises Helped
60M
Lines of COBOL
10x
times faster code discovery
83%
cheaper than manual code documentation

Trusted by leading enterprises

Platform Core

Deterministic analysis + expert review → audit-ready artifacts

COBOLpro automates COBOL documentation and lineage, ties SME knowledge to code, and produces evidence your teams and auditors can trust—without disrupting batch windows.

Parser-Based Engine

True Static Analysis.
Not LLM Hallucinations.

COBOLpro doesn't just "read" code—it parses it. Our engine uses formal ANTLR lexers and parsers to build a mathematically correct model of your legacy application, ensuring 100% accuracy in data lineage and impact analysis.

  • ANTLR4 Grammar
  • Abstract Syntax Tree
  • Symbol Resolution
  • Control Flow Graph
Logic Extraction

Uncover BuriedBusiness Rules.

Stop guessing what your code does. We extract the actual business logic hidden inside millions of lines of spaghetti code, converting obscure COBOL conditions into clear, actionable business rules ready for modernization.

01
Logic Isolation — Slices execution paths to isolate decision blocks (IF/EVALUATE) from I/O boilerplate
02
Variable Tracing — Back-traces critical variables to their origin sources (DB2 tables, VSAM files)
03
Rule Synthesis — Translates technical conditions into human-readable "WHEN-THEN" business statements
Dialects
IBM, Micro Focus, GnuCOBOL
Environments
z/OS, CICS, IMS, DB2, JCL
Critical Business Risk

The risks of opaque COBOL systems compound over time

Critical COBOL systems run the business, yet teams lack deterministic documentation, data lineage, and change impact. Without these artifacts, organizations face slower delivery, audit friction, and higher outage risk.

Knowledge Leaving the Building

Critical business logic lives in people and code comments. As SMEs retire, teams lose the context needed to make safe changes.

Observed risk area

65% of COBOL experts retire by 2029

Slow, Risky Change

Changes are made without understanding full impact, leading to production issues and audit failures.

Observed risk area

6-12 months average change cycle

Audit & Outage Exposure

Opaque data flows and missing lineage create audit friction and increase the chance of incidents during peak periods.

Observed risk area

Evidence gaps and fragile batch windows

WARNING

The cost of inaction

Without proper knowledge retention and documentation, organizations face system failures, compliance risks, and potentially catastrophic business disruption.

System failures during critical periods
Regulatory compliance failures
Total loss of business functionality
Delivery Framework

How COBOLpro Works

Transform your legacy COBOL systems in three simple steps

  1. 01

    Map of Your System

    Get a complete overview of the system, in file, application and program level to fully comprehend the architecture and design of the application.

  2. 02

    Understand Dependencies

    Autonomously generate explanations, UML diagrams, user diagrams, and flowcharts to provide context and clear explanations of the code. See screen variables, job flows, and understand every single program that is making your company run.

  3. 03

    Create Specifications

    Understand and reverse engineer your business rules to fast-track modernization and give non-technical people results of the current specifications.

Get a complete mapping of your COBOL architecture and business logic with comprehensive documentation and specifications.

Capability Stack

Three Pillars. One Outcome: Safe Modernization.

A unified flow: Static Analysis produces evidence → CLIP captures SME knowledge → IDE operationalizes fixes. Start simple, reveal more detail as you go.

System Mapping Engine

Comprehensive System Architecture Analysis

Advanced analysis technology that creates complete overviews of your COBOL systems at file, application, and program levels to fully comprehend architecture and design.

Key Capabilities:

  • File-level system mapping
  • Application architecture visualization
  • Program structure analysis

Dependency Analysis Platform

Autonomously generates explanations, UML diagrams, user diagrams, and flowcharts to provide context and clear explanations of the code and dependencies throughout your systems.

Business Specifications Engine

Understands and reverse engineers business rules to fast-track modernization and provide non-technical stakeholders with clear specifications of current systems and requirements.

AI Copilot Boundaries

Deterministic Analysis + AI Assistance

Static Analysis & COBOL Parsers

Lexers/parsers per dialect, control/data‑flow graphs, copybook resolution, and I/O mapping produce deterministic artifacts.

Rules Engine & Domain Heuristics

COBOL idioms, JCL patterns, CICS/DB2 access, and error‑handling conventions are encoded as rules for consistent findings.

Repeatable, Audit‑Ready Outputs

Call graphs, I/O maps, field‑level lineage, and JCL schedules are versioned and exportable (PDF/HTML/JSON/Git).

Where AI Helps (and Where It Doesn't)

  • Grounded summaries: AI explains code paths and artifacts using Retrieval‑Augmented Generation (RAG) strictly from outputs.
  • IDE assistance: estate‑aware hints for navigation, guardrails, and best practices.
  • No model training on your code: customer code is never used to train models; analysis is read‑only.
  • Determinism first: authoritative sources are static analysis artifacts and rules; AI never overrides them.
Result: evidence you can trust for audits and operations—faster onboarding and safer change.
Benchmark

Capability Comparison

COBOLpro vs AI-Only Tools vs Manual Process

Capability
COBOLpro
AI-Only Tools
Manual Process
Analysis Approach
Deterministic static analysis with COBOL-specific parsers
LLM-based code interpretation
Manual code review and documentation
Accuracy & Reliability
Repeatable, audit-ready outputs with expert review
Variable results, potential hallucinations
Accurate but inconsistent
COBOL Dialect Support
IBM, Micro Focus, GnuCOBOL with custom parsers
Basic COBOL understanding
Depends on expert knowledge
Business Rules Extraction
Automated with SME validation
AI interpretation only
Fully manual process
Data Lineage Mapping
Field-level tracing across COBOL/CICS/DB2/JCL
Limited cross-system tracing
Time-intensive manual tracing
Implementation Time
2-4 weeks pilot, weeks to months full deployment
Days to weeks
Months to years
Security & Compliance
On-premise/VPC deployment, SOC2, audit-ready
Cloud-dependent, variable compliance
Inherently secure, compliance varies
Ongoing Maintenance
Automated updates with code changes
Requires retraining/re-analysis
Continuous manual effort
Client Proof

Trusted by Enterprise Leaders

From critical banking systems to healthcare processing and manufacturing operations. Organizations worldwide trust COBOLPro for their legacy system continuity needs.

01

European Regional Bank

IT Director

02

Major Insurance Company

CTO

03

Global Airline

VP Engineering

04

Canadian Financial Institution

Director of IT

05

European Banking Group

Chief Technology Officer

01European Regional Bank

“We had a 65-year-old developer retiring next month with 30 years of knowledge about our core payment system. COBOLPro helped us document what he knew before he left. Now we don't panic every time something breaks.”

IT Director

European Regional Bank

02Major Insurance Company

“The automated documentation and business rules extraction saved us months of manual work during our modernization project.”

CTO

Major Insurance Company

03Global Airline

“COBOLPro's deterministic analysis gave us the confidence to make changes to our reservation system that we've been afraid to touch for years.”

VP Engineering

Global Airline

04Canadian Financial Institution

“We reduced our compliance documentation time by 75% and improved audit readiness significantly.”

Director of IT

Canadian Financial Institution

05European Banking Group

“COBOLPro transformed our legacy system modernization strategy. We can now make changes with confidence knowing exactly how they impact our business.”

Chief Technology Officer

European Banking Group

Ready to take control of your COBOL?

Platform + Managed COBOL, Under One Roof

Use the COBOLpro platform to document and govern your estate—and add Managed COBOL whenever you want us to run it for you with SLAs.

COBOL Documentation, Analysis & Dependency Mapping Platform | COBOLpro