System z Foundation
zCITA was designed for IBM System z environments, drawing on z/OS, CICS, COBOL, JCL, DB2, VSAM, and enterprise operations experience.
zCITA — Corebanking Intelligent Transaction Architecture — is part of Tambition’s historical core-banking work for mid-tier financial institutions on IBM System z / z/OS. Its architecture and operational context inform the company’s current z/OS consulting and enterprise-systems work.
zCITA was designed as a customer-centered, product-oriented and service-oriented core-banking architecture for mid-tier financial institutions. It is presented as Tambition’s own historical solution lineage and not as a market-first claim.
The architecture separates transaction, service, scheduling, batch and account-processing stages. This historical design is presented as technical lineage rather than a claim of current deployment, completeness or performance.
zCITA was designed for IBM System z environments, drawing on z/OS, CICS, COBOL, JCL, DB2, VSAM, and enterprise operations experience.
The architecture organizes banking channels, transaction gateways, service scheduling, batch processing, and core account services.
The product concept emphasizes parameter-driven banking products and customer-centered service operations.

Historical zCITA architecture includes a “2 cities, 3 centers” availability/recovery model alongside Sysplex, CICSPlex and GDPS. It is presented as historical architecture experience, not a present uptime, disaster-recovery or customer-outcome guarantee.

Tambition retains the original zCITA brochure and architecture materials as historical technical records. This page also presents the major architecture, functions and technology in accessible HTML.
zCITA demonstrates Tambition’s early application-architecture thinking on System z and remains part of the company’s reusable technical lineage. This page does not claim current customers, availability, maintenance, roadmap or support status.