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Why is replacing old banking software harder than changing a screen?

A new banking screen may look simple while the systems behind it share data, scheduled jobs and services with many others. Replacing that network means keeping records consistent and checking what still depends on the old arrangement. IBM's account of separating the Co-operative Bank's systems offers a concrete example of why migration involves more than rebuilding an interface.

3–5 min

Questions you could explore

  • What would you want to verify before moving a real transaction to the replacement system?

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Why is replacing old banking software harder than changing a screen? | Speech Topic | speaking.app