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From legacy to legendary core banking

The great core migration era has begun

Banks are increasingly realizing they cannot deliver promises for tomorrow with technology from years past. As many play catch-up with banks that started modernizing their cores five years ago, one thing is clear: A transformed banking core is now realistic, achievable, and crucial to driving innovation and future durability.

From legacy to legendary: The great core migration era has begun

The core banking migration landscape

Actions in the marketplace, evolving consumer attitudes, and inevitable advances in technology are increasing the urgency for banks to migrate and transform their core systems. Here’s how:

The core innovation horizons we see
and the adoption curve


First horizon: Innovators

The institutions that started modernizing five years ago are now able to innovate more deeply and move faster. Their cores are fully migrated and their legacy systems are retired. They were more technically ambitious and innovatively creative then and are now able to achieve edge-based initiatives and move fast to meet customer demands today. Innovators’ bold moves have made them leaders of the banking core revolution.

Second horizon: Late-early adopters

These institutions are moving quickly, extracting and migrating significant portions of their legacy core banking platforms onto the new core. Certain books of their consumer portfolio may be fully enabled, while other aspects may still live on legacy systems. Their goal is to manage the complexity while still moving quickly.

Third horizon: Late adopters or laggards

These institutions are still working through how to get going and have perhaps pivoted to understanding the need instead of resisting the change. That said, these banks may be in jeopardy of irrelevancy and may not be able to compete with product propositions. They may even be acquired by larger institutions. Meanwhile, the innovators and even second horizon adopters have improved efficiency ratios and compete at a different level in the marketplace, exploring a wider range of distribution channels. 

How to start your core banking transformation

The banking core revolution is accessible for any institution that wants to modernize and not just keep pace with the competition, but also find new competitive advantage. Here are the steps that should be considered for any bank that wants to join the revolution toward a new horizon.

Before beginning any migration, an organization should think about these considerations to help narrow down what they need, what they want, and what they can achieve. Take stock of your:

  • Guiding principles for design, implementation, and launch.
  • Financial and nonfinancial goals.
  • Definition of success—and how your institution will measure it.
  • Where your organization would like to play (this could be by geography, industry, product, or all of the above).
  • Competitive advantage.
  • Current functional, technical, and operational challenges.

Moving into a modern architecture is a team effort that can affect the entire business, and a successful strategy should take that into account. When migrations fail, it’s usually due to a lack of alignment and support from stakeholders. Taking these steps now can mitigate that. By defining your vision, you can gain clarity around a plan for change and the business case for it.

With each choice comes a new consideration: How will this tactic stand up to your products, technologies, and operations? No matter which path an institution chooses, it should try an implementation in its own environment to see what works best for it. While each institution’s vision will be different, here’s how we’ve seen our clients choose to begin their journeys. The goal: start with innovation.

Proof of concept to proof of value: A smaller technical implication, a proof of concept, to support a new project or product is a way of testing the waters. In doing so, institutions can build a proof of concept that can then be used as a proof of value for a great migration. Or try using different technologies in an environment to test and narrow down what you want and need, and what you don’t.

Hybrid designs: Integrating new technologies with current landscapes to address a particular business need or use case, or to enable additional features and capabilities.

The implementation of an institution’s migration isn’t a sprint; it’s a marathon. After you’ve defined your target state, the real journey begins. A full migration might include:

  • Establishing new vendor relationships and processes.
  • Implementing new technologies to support target architecture.
  • Building out talent with necessary skill sets.
  • Establishing systems and processes for all areas of the business impacted by the new core.

The banking revolution is here. Are you in?

See how Deloitte's Converge™ BankingSuite can help you bring new products to market in months not years.

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