Enterprise Inventory Intelligence · IBM z/OS
Complete visibility and control over inventory, assets, and operational data across your mainframe estate — without replacing the systems you depend on.
The problem
Inventory and operational data are often fragmented across decades of COBOL, PL/1, JCL, CICS and database definitions — making real-time insight difficult, and making most generative AI tools guess rather than know.
Black-box AI has no place in an audited, mission-critical environment. When a model can't show its working, you can't sign off on its output — and you can't hand it to a regulator.
Legacy Software takes the opposite approach: scan the estate first, structure what's found into a governed, cross-referenced model, then let rules-based AI reason over that model. The result is context an AI can actually use — and an answer your organisation can actually trust.
The approach
Built specifically for organisations running IBM z/OS, where stability, control, and auditability matter more than speed alone.
Integrate directly with your existing z/OS environment, accessing inventory and operational data without disruption to running systems.
Automatically detect and scan COBOL, PL/1, JCL, CICS, DB2, IMS and 60+ other object types, showing exactly how data flows through your systems.
Custom rulesets turn the scanned model into consistent inventory insight — every output explainable and traceable back to its source.
Navigate results directly, or export to the tools your teams already use — including Solidatus and Microsoft Purview.
Why rules-based AI
Every output is driven by transparent logic — ideal for enterprise control, audit, and compliance.
The Legacy Directory
An enterprise source code scanning engine that documents your existing systems automatically — solutions delivered quickly, with minimal disruption.
Detects and scans COBOL, PL/1, Assembler, DB2, IMS, JCL and CICS objects to a user-specified depth, without manual mapping.
Flags references — like a JCL call to a load module that no longer exists — so gaps surface before they cause a failure.
A focused inquiry engine for people who know exactly what they need, without digging through layers of detail.
Scans millions of lines a minute to produce complexity statistics at program, application, suite or system level.
Get in touch
Tell us about your estate and requirements below, and we'll show The Legacy Directory against a system that looks like yours — no disruption to production, no black box.