Rethinking Bank Transformation: The Future Starts with a Digital Twin

Big Bang transformations have failed, prompting banks to pursue incremental change as an alternative strategy. Incremental change, however, means maintaining the existing architecture at high cost.  Banks and financial institutions face delays and challenges upgrading legacy systems, with even minor IT changes demanding excessive time and resources.  Despite hundreds of billions spent on tech infrastructure, many transformation initiatives in financial institutions fail due to massive data reconciliation problems, and inadequate financial risk management tools – as a result, no one dares to touch old ‘core tech’ for fear of breaking the bank.  

Ariadne is proposing a different approach to transform financial institutions – a safe transition with digital twin technology.   

A safe transition from legacy systems begins with creating digital twins on an analytical level of banking applications using Ariadne AnalytX. This approach does not interrupt or interfere with production systems.  However, it ensures accuracy and confidence during migration to any new system. The process starts by mapping the legacy system to the open-source ACTUS financial standard, enabling uniform and verifiable cash flow information across all systems. 

Verification at the expected cash-flow level confirms precision in analytics. This step can be repeated for multiple systems or executed simultaneously, covering the entire balance sheet and off-balance sheet operations. Once mapping is complete, treasury, finance, risk and the Board gain access to essential data, including nominal and fair market value under IFRS and local GAAP, dynamic what-if scenarios, interest rate risk, and profitability at any level. 

Legacy systems remain operational during this parallel phase, performing specialized tasks such as savings accounts, credit cards, mortgages, and derivatives. However, proprietary logic creates challenges for consolidation and projection. Ariadne solves this by integrating ACTUS-compliant life cycle and transaction processing through SolitX and its native API architecture. 

The result is a unified architecture: modular, expandable, and consistent production systems and life cycle management for any financial product thanks to Ariadne SolitX.  At the same time, Ariadne AnalytX delivers integrated analytics for Finance, Risk, and forward-looking regulation.  

Digital twins transform complexity into clarity, enabling financial firms to move confidently into the future. 

Watch the video here.   

About Ariadne Solutions:   

AnalytX: A unified analytics architecture for finance and risk—spanning basic accounting through advanced financial simulation. Financial analysis and risk for treasury, finance, and risk functions, AnalytX delivers unmatched clarity, simplicity, and consistency, resolving long-standing challenges of traditional data warehouses enabling liquidity planning, budgeting, ILAAP, ICAAP, IRRBB, LCR, etc. 

SolitX: A modular, consistent, and extendable product engine for any financial product—from savings and loans to bonds, swaps, futures, options, etc. Built with RESTful APIs and cloud-native architecture, SolitX enables configuration of any financial instrument without a software change and accelerates product launches from months or years down to weeks. 

Further Links 

Brammertz, W., & Mendelowitz, A. (2025, January 29). Pacioli in the computer age. GARP. https://www.garp.org/white-paper/pacioli-in-the-computer-age 

Risk.net. (2025, December 18). 2026 Quant Master’s Guide—ETH-UZH tops European rivals. Risk.net. https://www.risk.net/quantitative-finance/7962867/baruch-princeton-cement-duopoly-in-2026-quant-master%E2%80%99s-guide 

Brammertz, W., Akkizidis, I., Breymann, W., Entin, R., & Rüstmann, M. (Eds.). (2012). Unified financial analysis: The missing links of finance (1st ed.). Wiley. https://doi.org/10.1002/9781119206071 

Brammertz, W. (2023, June). SVB Failure Reconstruction—What a Regulator could have seen with ACTUS: [Youtube]. ACTUS Research Foundation. https://www.youtube.com/watch?feature=shared&v=1OxFWdxF0LE