Application baseline
An organized view of programs, jobs, data stores, interfaces, and the business capabilities they support.
Comprehend
Private BetaUnderstand business capabilities, rules, dependencies, data lineage, interfaces, batch flows, and risk across your mainframe estate. Findings include supporting references to source code.
Private-Beta Product View
Comprehend organizes discovered functional areas and links them to journeys, programs, and rules. The selected view below uses demonstration data and excludes project navigation, source paths, and implementation details.

Actionable intelligence that helps teams reduce manual discovery effort.
Identify business capabilities, rules, and processes in mainframe applications. Understand what the system does and how it supports operations.
Visualize program structure, CICS transaction paths, JCL batch flows, DB2 and VSAM data lineage, and integration points across the estate.
Identify areas of complexity, code quality concerns, and technical debt that may affect modernization planning.
Map code to business functions. See which systems support critical operations and where business logic lives.
What an Evaluation Produces
Comprehend produces candidate findings and the source-linked evidence behind them. Your application experts review, validate, or correct those findings. The resulting deliverables preserve that distinction.
An organized view of programs, jobs, data stores, interfaces, and the business capabilities they support.
AI-assisted rule findings with supporting source references, ready for subject-matter-expert review.
Connections across programs, batch steps, transactions, files, and data stores within the agreed scope.
A record that distinguishes generated findings from items your reviewers confirmed, corrected, or left open.
The article explains the review approach; it is not presented as customer data or a product-generated result.
Mainframe applications are systems of systems. Comprehend analyzes languages, transactions, data stores, batch flows, and interfaces together instead of treating them as isolated snippets.
COBOL
Programs & copybooks
JCL
Batch jobs & schedulers
CICS
Transactions, BMS, COMMAREA
DB2
Embedded SQL & stored procedures
IMS
IMS DB & IMS TM
VSAM
Files & GDGs
PL/I · HLASM
Legacy languages
MQ · IDMS · Adabas
Messaging & legacy data stores
Findings include supporting references to source files and line numbers so teams can review the evidence.
Findings include supporting source file and line references.
Repeat analysis as your codebase evolves.
Private SaaS deployed in your cloud tenant, using your approved AI models. Source code and analysis remain under your control.
Explore how Comprehend can help your teams build a shared understanding of complex applications grounded in evidence.