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Implementation of Core Banking: Is Your Current Solution Compatible with Core Banking?

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Adriana Fekete

  • 5 min read
implementation of core banking

Framing the challenge of implementing core banking

Market requirements, financial trends and business development plans typically drive the business requirements for changes to banking products. Core banking implementation is complex when you don’t have the right overview. Proposing a change in the business logic of an existing banking product often requires altering the implementation of features within the banking architecture. Even if the proposed business logic change aligns with the new business requirements, the technical implications of the product change may lead to incompatibility issues with the currently implemented product architecture or the selected core banking system provider.

Designing an elegant solution 

The solution is not always straightforward and for many banks, this is the part where the issue of incompatibility arises. However, it is rare that a problem is totally unimplementable.  

Edge cases can also increase complexity of core banking implementation. For example, our proposed debt repayment example could be implemented by an existing external debt management add-on. However, ensuring no other processes access the newly arrived funds before they undergo the debt repayment could be almost impossible.

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Implementing core banking step by step:

There is no single best way to implement core banking and tackle the difficulty and expense of a change, but the following points might help you arrive at solution.

1. Consider the business rationale for the change. Do we have a clear understanding of the business rationale for the chance and have we implemented the technical solution as simply as possible to meet these business requirements? Sometimes a better understanding of the business rationale can lead to a better technical solution that reduces costs for implementation of core banking and maintenance while producing the same or similar business results.
 
2. If the proposed change is large both in terms of scope and complexity, are you able to determine if there is an option to roll out the change in steps? Is there an MVP of your proposed change? Sometimes, it might be possible to implement a less complex change quickly and evaluate the first business impact of that change before embarking on a complex, expensive change with unclear business benefits. If the business benefits of the initial change are positive then you can proceed with the more complex change with more confidence in a positive business outcome.This can help you evaluate if you’re ready for a core banking implementation. 
 
3. If the proposed change is large in scope, can’t be changed or simplified and does not fit well with existing system architecture,
it might be a trigger to make adaptations and improvements to the system architecture. Bank technology evolves over time and sometimes recurrent difficulties in making changes hints that a broader restructuring of the system is needed to reduce maintenance costs and align with the development goals of the bank. It is important to note that many next-generation core banking systems are designed with long-term development flexibility in mind, supporting easy implementation of core banking and more complex banking products and offering a stable long-term solution for future development. 
 

Additional challenges implementing a core banking system 

  • Planning and Defining the Scope
Getting core banking implementation right starts with a solid plan that matches the bank’s goals. Without a clear scope, things can spiral—costs can go up, goals may shift, and timelines can get thrown off.
 
  • Managing Change and Training Staff
Moving to a new system can be tough for employees, leading to mistakes or slower processes. Make change management a priority by involving staff early, explaining the system’s benefits, and providing ample training. Celebrating milestones can also go a long way in keeping spirits up and getting buy-in from everyone involved.
 
  • Data Migration and System Compatibility
Smooth data migration is critical, as errors here can disrupt day-to-day banking operations. Clean and validate data before migration, and always have a backup plan. It’s also key to pick a CBS solution that plays well with other tools the bank uses, like CRM or fraud detection systems, preferably using API-driven tech for easy integration.
 
  • Testing and Pre-Launch Prep
Thorough testing helps catch issues before going live. Use a phased testing approach, from smaller tests to full user testing, and bring in real users for feedback. Let customers know about any planned downtime and aim for low-traffic periods. Make sure customer support is ready to answer questions and help make the switch as smooth as possible.
 
  • Ongoing Support and Security
After launch, continuous support is essential for handling issues, improving performance, and adjusting to new needs. Plan for post-launch support from your vendor and consider training an internal team for ongoing management. 

Last thoughts before you start the change:

 After determining what needs to be done, the phase of designing how it could be done requires answering the following questions:

  • Does the core banking implementation require a standalone component or is it better to modify the existing product?
  • If we need to modify the existing product does the change impact one or several system components?
  • Which components of the system will be affected by implementation of core banking?
  • If our new functionality brings new dependencies into our product (for example, core banking implementation introduces a new data source), how can we provide the necessary support? Do we have the required data already within our system? 

Answering these questions provides a clear understanding of the scope of the changes, the impact on the system, and the resources required for successful implementation of core banking. 

 

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