How a Post-Merger Bank Replaced CMOD and Unified 100+ Applications Without Losing Compliance

Industry: Banking / Financial Services

Use Case: CMOD Replacement, Post-Merger Data Consolidation, Banking Archive

The Situation: A Post-Merger Bank, 100+ Applications, and 5 TB of Data Spread Across Two Legacy Estates 

One of Southeast Asia’s largest financial institutions completed a major merger, bringing together two significant banking operations under a single entity. The resulting organization inherited 100+ applications spanning mainframe systems, RDBMS environments, and core banking platforms, with more than 5 TB of accumulated data including spool files and hundreds of legacy reports. 

For a regulated financial institution, that data is not optional baggage — it is a compliance obligation. Customer statements, transaction records, and operational reports must be retained, accessible, and retrievable on demand. The question was not whether to keep it. The question was how to unify it, govern it, and serve it to business users without maintaining the cost and complexity of two separate legacy estates. 

The Challenge: Replace CMOD Without Disrupting the Retrieval Experience Business Teams Depended On

The bank’s core requirement was a unified reporting function: a single environment that could bring together data from multiple source systems, eliminate redundant infrastructure, and reduce license and maintenance costs. But critically, the user experience business teams relied on had to be preserved. 

End-user statement requests had to work exactly as they did in the live system. Staff were accustomed to requesting a customer statement and receiving a password-protected document. Replacing CMOD with a system that required retraining every business user or that changed the retrieval workflow — was not acceptable. 

Three technical factors compounded the complexity: 

• Proprietary CMOD architecture: IBM Content Manager OnDemand stores content in proprietary formats with its own indexing and metadata model. Extracting that content, matching it to index values, validating integrity, and rebuilding the user experience on a modern archive platform requires specialist capability most generic archive vendors do not have. 
• Metadata fidelity at scale: With 5 TB of content across mainframe and RDBMS sources, index integrity was non-negotiable. A metadata mismatch in a banking archive is not an inconvenience, it is a compliance failure. 
• Zero disruption mandate: The bank needed the new environment to be invisible to end users: same retrieval workflow, same document format, same access controls. The migration had to happen underneath the business without the business noticing. 

What Archon Did: Specialist CMOD Extraction, Metadata Validation, and a Rebuilt Search UI That Looked Familiar

Archon deployed its specialist CMOD extraction and archiving capability: purpose-built tooling that understands how CMOD stores, indexes, and serves content. The engagement covered: 

• Source report content extracted from CMOD and matched to index values (metadata) with full validation against the original system’s records 
• Validated content delivered into the Archon archive store with metadata integrity confirmed pre- and post-migration 
• New search UI built for business users, replicating the CMOD Content Navigator experience — same retrieval workflow, modern architecture underneath 
• Password-protected statement generation implemented for sensitive reports, preserving the data access controls business users expected 
• Compliance-grade retention, purge, and legal hold capability implemented in the new environment — features the legacy CMOD infrastructure was not delivering effectively 
• Infrastructure rationalization: redundant systems across the merged entity eliminated, license and maintenance costs reduced 

The Results 

Why It Matters

Post-merger data consolidation in financial services is a compliance event as much as an IT project. Every report, statement, and transaction record from both legacy organizations is subject to retention obligations that do not pause during integration. Archon’s CMOD replacement capability means the bank did not have to choose between compliance continuity and infrastructure modernization. They got both — without the big-bang risk of a conventional migration.