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The Legacy Directory · IBM z/OS

See every application properly documented.

Your teams get complete, current documentation of the mainframe estate, because the Directory scans the source itself and maps how every program, job, file and database fits together, without changing a running system.

WITH Naming Workbench: business names for every field →
scan_trace.log
DETECTPAYROLL.COBOL01 → COBOL
DETECTDB2.SCHEMA.CUST → DB2
DETECTJOB.NIGHTRUN → JCL
DETECTTXNMAP.CICS → CICS
XREF4 objects → 1 lineage path
NAMEL01B-OP-DATE → Opening Date
RULESETapplied · explainable · audit-ready
COBOL
JCL
Directory
DB2
CICS

In brief

Documentation you can trust.It is always current and complete, because it is produced from the code that actually runs, not from what people remember.

Change without surprises.You know what a change will touch before you make it, because every cross-reference between programs, jobs and data is mapped.

No disruption, no black box.Production keeps running and every result can be explained, because the Directory reads source and applies transparent rules.

The problem

Your data is real. Most AI can't see it.

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

Four steps from raw estate to governed insight.

Built specifically for organisations running IBM z/OS, where stability, control and auditability matter more than speed alone.

01

Connect

Running systems are never disturbed, because the Directory integrates with your existing z/OS environment and reads what is already there.

02

Map

You see exactly how data flows, because COBOL, PL/1, JCL, CICS, DB2, IMS and 60+ other object types are detected and scanned automatically.

03

Apply rules

Every insight can be explained, because custom rulesets turn the scanned model into results traceable back to their source.

04

Export

Your teams keep their tools, because results export to applications such as Solidatus and Microsoft Purview. With the Naming Workbench, business names travel with them.

Capabilities

Purpose-built for complex inventory challenges.

Solutions delivered quickly, with minimal disruption, because an enterprise scanning engine documents your existing systems automatically.

60+ LANGUAGES

Nothing left unmapped

Because COBOL, PL/1, Assembler, DB2, IMS, JCL and CICS objects are detected and scanned to the depth you choose, without manual mapping.

MISSING MEMBERS

Gaps found before they fail

Because references such as a JCL call to a load module that no longer exists are flagged as soon as they are scanned.

quikVU

Direct answers to direct questions

Because a focused inquiry engine lets people who know what they need find it without digging through layers of detail.

METRICS

Migration plans built on numbers

Because millions of lines are scanned a minute to give complexity statistics by program, application, suite or system.

Better together

Add the Naming Workbench and your documentation speaks the language of the business.

The Directory tells you what exists and how it connects. The Naming Workbench tells everyone what it means.

4
decades of hands-on mainframe expertise
60+
languages, databases and job control formats supported
1 day
standard response time on enquiries
Export to applications such as Solidatus & Microsoft Purview, or use the Legacy TSO/ISPF interface

See your estate the way your auditors need to see it, in a demo against a system like yours.

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