All ServicesCore Speciality

BASE24 & BASE24-EPS
Migration Consultancy

End-to-end advisory for financial institutions migrating from legacy BASE24 environments to BASE24-EPS — from initial discovery through to post-go-live stabilisation. Delivered by practitioners who have run these programmes themselves.

Architecture Overview

Migration Architecture Diagram

Click the diagram to expand it fullscreen for full detail. The architecture covers the complete migration path from BASE24 legacy to BASE24-EPS including HSM, ISO 20022, and scheme certification.

BASE24Legacy PlatformACI WorldwideIDF / TDF Parameter TablesISO 8583 Message RoutingCustom Host InterfacesSTIP / Stand-in ProcessingMIGRATEBASE24-EPSModern Payments PlatformPayments Orchestration EngineProduct / IDF Table MigrationAuthorisation Engine ConfigISO 20022 Message MappingScheme Certification (Visa/MC)HSMThales payShield 10KKey Ceremony / ANSI TR-31ISO 20022pacs.008 / pacs.002Message Mapping LayerScheme CertVisa / Mastercard / UnionPayTPS Benchmarking01 Assess02 Design03 Build04 Test05 Cutover06 StabiliseBASE24 → BASE24-EPS Migration Architecture — Proximo Consultancy
Expand diagram

Methodology

Six-Phase Migration Framework

Our structured methodology has been refined across multiple BASE24 migration programmes spanning EMEA, Asia-Pacific, and the Americas.

01

Discovery & Assessment

Comprehensive audit of your existing BASE24 environment — IDF parameter tables, host interfaces, HSM configuration, scheme certifications, and downstream dependencies. We produce a detailed migration readiness report with risk-rated findings.

02

Architecture & Design

Design of the target BASE24-EPS architecture including authorisation engine configuration, ISO 8583 to ISO 20022 message mapping, network topology, and high-availability design. Includes formal architecture sign-off documentation.

03

Build & Configure

Hands-on BASE24-EPS parameter configuration, IDF table build, host interface development, HSM key ceremony management, and scheme interface configuration. We work directly in your environment alongside your technical teams.

04

Test & Certify

End-to-end test strategy covering functional testing, performance benchmarking (TPS), scheme certification (Visa, Mastercard, UnionPay), EMV chip and contactless testing, and 3DS2/SCA validation.

05

Cutover Planning

Detailed cutover runbook, rollback procedures, parallel-run strategy, and hypercare plan. We manage the cutover execution and provide on-site support through the stabilisation period.

06

Hypercare & Optimisation

Post-go-live monitoring, performance tuning, incident management support, and knowledge transfer to your operations team. We remain engaged until your team is fully self-sufficient.

What You Receive

Key Deliverables

  • Migration Readiness Assessment Report
  • Target Architecture Design Document
  • IDF Parameter Configuration Workbook
  • ISO 8583 / ISO 20022 Message Mapping Specification
  • HSM Key Ceremony Procedures
  • Scheme Certification Test Plans (Visa / Mastercard / UnionPay)
  • TPS Performance Benchmark Report
  • Cutover Runbook & Rollback Procedures
  • Hypercare & Stabilisation Plan
  • Operations Knowledge Transfer Pack

Technical Scope

What We Work On

IDF Parameter Tables

Full configuration of BASE24-EPS IDF tables including card ranges, authorisation rules, and fee structures

ISO 8583 Message Flows

End-to-end mapping of ISO 8583 message types to BASE24-EPS processing paths and ISO 20022 equivalents

HSM Key Management

Key ceremony procedures, zone key hierarchies, and HSM integration for BASE24-EPS

Scheme Interfaces

Visa, Mastercard, UnionPay, and domestic scheme interface configuration and certification

EMV & Tokenisation

EMV chip, contactless, and EMV Payment Tokenisation configuration within BASE24-EPS

Ready to Start Your Migration?

Tell us about your programme and we will provide an initial assessment at no charge.