Core banking replacements are high-stakes, expensive, and potentially risky endeavors that require meticulous planning. This introduction to implementing a new system moves beyond inflated ROI promises to explore Gen 3 core architecture and the specific strategies - from "big bang" to "sidecar" implementations - needed for a successful transformation

Financial institutions often underestimate the risks of core banking replacement. This guide explores the three main modernization strategies (Big Bang, Phased, Hybrid) and how "Gen 3" distributed architectures are changing the game for agile banking.