What is event-based data streaming, and why is it becoming a crucial solution approach for data-rich industries?

CEOs have always faced a unique set of challenges

This article is reproduced in entirety with permission from Confluent, of which Sida4 / 4impact is a proud APAC Integration Partner.

When it comes to mergers and acquisitions (M&A) in the Australian mutual bank sector, the focus often falls on the big picture—operational efficiency, financial strength, and scaling up. However, an equally important, yet often overlooked, part of the process is migrating data between core banking systems. If not managed properly, it can lead to significant challenges in integrating two banks' systems and very angry customers. "Migrating data from one core banking system to another isn’t as simple as copying and pasting files. This is no ordinary transfer." We're dealing with the movement of sensitive customer information, transaction records, account balances, and much more from one platform to the next. All of this needs to happen while ensuring the new system operates seamlessly, with customers continuing to process transactions without disruption. That’s no small feat. Given the size and limited resources of mutual banks, a ‘big bang’ migration is often the chosen approach. While this method carries high risk, it’s typically necessary because maintaining two core systems in parallel is not feasible for smaller banks. To mitigate these risks, careful planning and risk management are crucial, as any issues during migration could disrupt the bank's entire operations. So, what does it take to make this transition as smooth as possible? Here’s a quick overview of the key steps involved in migrating data between core banking systems. Planning: The Blueprint for Success Before any data migration takes place, banks typically start by identifying which core banking system will be used post-merger, whether it's an existing system from one of the merging banks or a completely new solution. Once that's decided, a comprehensive plan is created, outlining a roadmap for how data will be migrated from the old system to the new one. This includes determining which data needs to move, how it will be extracted, mapped, and transformed to fit the new system, and ensuring that the right data is transferred at the right time. Additionally, an audit process is put in place to ensure that balances and records are accurately accounted for both pre and post-migration. All these steps must be carefully planned before any data is migrated. Additionally, a fallback position must be established in case something goes wrong during the final migration. This includes having a rollback plan in place to revert to the old system if critical issues arise, ensuring minimal disruption to operations and customer experience. "Fallback should outline the steps needed to restore data." The fallback plan should outline the steps needed to restore data, address potential system failures, and reinitiate the migration process without compromising data integrity. Data Extraction and Mapping: The Nitty-Gritty Work Once the planning stage is complete, it’s time to get down to the real work—data extraction. This is where the actual migration begins. Data from the old core system is extracted, transformed, cleansed, and mapped into the format required by the new system. But there’s a catch: the data doesn’t always fit into the new system. No two core systems store data in the same way, so the structure and format of information will differ between the old and new systems. Think of it like trying to squeeze a square peg into a round hole. The data has to be mapped and massaged properly to ensure it aligns correctly with the new system’s structure. This is a critical step, as any mistakes here could lead to data discrepancies, missing information, or even system failures down the road. In addition to mapping, careful attention must be given to data cleansing to remove any obsolete or redundant information, ensuring that only relevant and clean data is transferred. Testing and Mock Conversions: The Dress Rehearsal After the data extraction and mapping, mock conversions are conducted using a sample of the bank’s data to make sure everything behaves the way it should. "These mock runs are critical for spotting any problems." Whether it's data formatting issues, incompatibility between the old and new systems, missing information or duplicate data. Essentially, this is the time to uncover any surprises before the real migration takes place. After each trial, the team identifies any issues, makes adjustments, and runs another mock conversion to ensure the process is as smooth as possible. Depending on the migration environment, consideration needs to be given to securing sensitive data through encryption or obfuscation during the trials and possibly during the data transfer, to prevent unauthorised access and ensure that privacy and compliance requirements are met throughout the process. During this phase, thorough auditing and balance checks are also performed to ensure the integrity of the data and that all records are accurately aligned between the systems before proceeding with the full migration. Data Migration: The Big Move With the mock conversions completed and any issues resolved, the migration process is now ready to be set in motion. This phase involves transferring the bulk of the data from the old system to the new one. Consideration must be given to ensuring that customer-facing applications and transaction platforms operate offline from the core while the migration occurs. Managing this offline operation requires significant preparation and planning, which is a substantial task in itself to ensure that services remain uninterrupted during the migration, where possible. Post-Migration Validation: Is Everything in Its Right Place? Once the data is in the new system, it's time to validate everything. This means making sure that all the accounts, transactions, balances, and other critical data appear correctly in the new system. Customers shouldn’t notice any difference in their banking experience (other than perhaps a better system). "Validate the integrity of the data and ensure the new system can handle it" In this stage, the team runs various checks to validate the integrity of the data and ensure the new system can handle it. These checks help identify any discrepancies that may have slipped through the cracks during the migration. In addition to validating the core banking data, post-migration checks should also ensure that integrations with third-party systems, such as payment processors, are fully functional. Go Live: The Grand Finale Once everything is validated, the new system goes live. This marks the moment when the bank fully transitions to the new core system. While continuous monitoring is in place to ensure stability, the major work is complete. The bank has successfully migrated its data, integrated its systems, and is ready to serve customers with minimal disruptions. Wrapping It Up Migrations are complex, especially when you’re dealing with something as critical as a core banking system. However with proper planning, careful data mapping, several mock conversions, and constant validation, the process can be executed efficiently and effectively. Core banking migrations occur more often than most people are aware and should not be feared, as long as they are managed properly. As part of the migration process, careful attention should also be paid to change management. This includes training staff on the new system, updating internal processes, and communicating with customers about any potential changes to their banking experience. Managing a Core banking data migration is complex and predisposed to potential high-impact risks. This complexity ultimately leads to significant challenges that can be mitigated if planned and managed correctly. If you are considering a Core banking data migration (or a non-banking data migration). Let’s talk.

In recent years, Australian mutual banks and financial providers have been undergoing a significant transformation, driven by the need to stay competitive in an increasingly digital and fast-paced financial environment. Mergers and acquisitions (M&A) in the Australian Mutual bank market have become more prevalent in recent years as these institutions adapt to a rapidly changing financial landscape. In 2000, there were over 100 Mutual banks, building societies, and credit unions operating in Australia. Today, that number has significantly reduced to around 50, as a result of several mergers and consolidations. The trend of consolidation is expected to continue, with several mergers currently in progress and awaiting customer and regulatory approval. Behind the scenes, numerous discussions and negotiations are taking place in boardrooms, indicating that additional deals are likely to be announced soon. M&As in the Mutual bank sector typically occur when two or more institutions combine to form a larger, more competitive entity or when one institution acquires another. These transactions are often driven by the need for greater scale, financial strength, and operational efficiency. With Mutual banks facing increasing competition, regulatory challenges, and evolving customer expectations, many institutions see M&As as a viable solution to enhance their market position and maintain profitability. "The primary motivations behind these M&As include achieving cost savings through economies of scale, expanding and enhancing product offerings, and improving technological capabilities." Furthermore, consolidation enables Mutual banks to remain financially viable in a highly competitive environment dominated by major banks. As the banking sector continues to evolve, M&A activity has accelerated, with Mutuals seeking to streamline operations, improve profitability, and ensure long-term sustainability in a rapidly changing market. Coupled with the challenges of consolidating two often very disparate operations and IT infrastructures, Mutual banks also face the ongoing pressure of maintaining business as usual (BAU) during the merger process. This requires careful management to ensure that customer services continue smoothly while the integration takes place. At the same time, there is an increasing demand for Mutuals to progress their digital transformation efforts, as customers expect enhanced digital experiences and access to modern banking services. Balancing the complexities of merging operations with the need to innovate and meet customer expectations presents a significant challenge for Mutual banks, making it essential for institutions to plan and execute their M&A strategies with both short-term stability and long-term goals in mind. Who Sida4 Is and How We Can Assist Sida4 is a trusted partner for Mutual banks navigating the complexities of mergers and acquisitions. With years of experience in the banking and financial services industry, we specialise in helping organisations streamline operations, enhance digital capabilities, and achieve sustainable growth. Our team understands the challenges that come with integrating disparate systems, cultures, and infrastructures during M&As, and we provide tailored solutions to ensure a smooth transition. "We assist throughout the entire M&A process, from strategic planning and due diligence to post-merger integration." Our expertise in digital transformation allows us to support Mutual banks in maintaining business as usual (BAU) while modernising their operations. We work with clients to align their IT infrastructure, optimise customer-facing platforms, and implement new technologies that drive efficiency and improve customer experience. At Sida4, we take a collaborative approach, working closely with all stakeholders, including IT teams, management, providers/vendors and regulatory bodies, to ensure the merger or acquisition is successful. Whether it’s streamlining processes, enhancing digital services, or ensuring regulatory compliance, Sida4 is committed to helping Mutual banks achieve their long-term goals in a competitive and ever-evolving market. Strategic Planning and Due Diligence Sida4 supports Mutuals throughout the M&A process by thoroughly assessing current systems and applications, documenting the existing state, and evaluating strengths and weaknesses. We assess core banking systems to determine the best fit for the merged entity, which may involve using one of the existing systems from the merging banks or recommending a new solution. We then identify the most appropriate future solutions and create a strategic roadmap aligned with long-term goals. Our due diligence ensures that the merger is strategically sound, identifies synergies, and uncovers opportunities for growth and operational improvement.

1. The Genesis: Navigating the Landscape of Traditional Batch Processing

In recent years, Australian mutual banks and financial providers have been undergoing a significant transformation, driven by the need to stay competitive in an increasingly digital and fast-paced financial environment. The Australian Mutual banking sector is in the midst of some major shake-ups thanks to mergers and acquisitions (M&As), and as this all unfolds, one thing has become clear: technology is what’s really driving success. With the big banks always looming and the digital landscape changing faster than you can blink, mutual banks are leaning heavily on tech to improve operations, deliver engaging customer experiences, and build a path for long-term success. But, as we all know, M&As come with their fair share of tech hurdles, so getting your IT strategy right is absolutely critical. Why Strategic IT Planning is a Must When it comes to M&As, IT planning is far from a one-size-fits-all situation. It’s the glue that holds everything together and can make or break the merger. "A solid IT strategy ensures that the tech landscape after the merger supports both the ‘business as usual’ operational needs and the bigger, long-term business goals." So, what should you be thinking about when drawing up your IT roadmap for an M&A? Let’s dive in: Choosing the Right Core Banking System : Think of core banking system like the heartbeat of a bank. When two institutions merge, there’s a good chance their systems won’t be in sync. That means it’s decision time: do you stick with one of the existing systems, or do you bring in something new that will better serve the merged entity? A lot rests on this choice. Assessing IT Systems: Much like with the core banking system, merging two banks often leads to duplicated functionality across systems. This is where key decisions need to be made about which systems are the most efficient and scalable to meet the combined bank's operational needs and customer expectations. Aligning Tech with Business Goals : Tech shouldn’t be in a silo—it needs to align directly with the business objectives of the merger. Whether it’s consolidating platforms, upgrading those legacy systems that are holding you back, or introducing the latest tech to improve customer experience, your IT plan should work toward a unified vision for the merged entity. Future-Proofing IT Infrastructure : Merging systems is just the tip of the iceberg. The real challenge lies in making sure your tech is ready for whatever comes next. Whether that means adopting a cloud-first approach, getting into AI, digitalisation, or integrating advanced analytics, the goal is to build an adaptable tech foundation that’ll keep you ahead of the competition. Due Diligence: Your Tech Check-Up Think of due diligence as the health check for your merger’s tech. It’s the time to identify any risks, tech shortfalls, or compatibility challenges that could cause problems down the road. Cybersecurity and Compliance Risks: When two organisations come together, their security protocols need to be on the same page. It’s all about identifying any vulnerabilities in the system integration or data migration process. Ensuring that both banks meet compliance standards will save you a lot of headaches later on. Data Quality and Migration: Data migration is one of those tasks that sounds easy until you’re halfway through and realise you’ve bitten off more than you can chew. Avoid cutting corners. Validate data integrity, create a migration plan, and make sure everything gets transferred securely. Otherwise, you’ll be dealing with fallout in the future. Technology Vendor Assessment: Most banks rely on third-party vendors to keep things running smoothly. As part of due diligence, you need to assess whether the vendors’ services fit the new bank’s strategy. In most cases, this will involve renegotiating terms to better meet the needs of the combined entity.

In recent years, Australian mutual banks and financial providers have been undergoing a significant transformation, driven by the need to stay com petitive in an increasingly digital and fast-paced financial environment. "A notable trend emerging from this shift is the hollowing out of traditional core banking systems." A notable trend emerging from this shift is the hollowing out of traditional core banking systems. The reasons behind this phenomenon, its implications, and how mutual banks are navigating these changes rely on the concept of ‘reinvention’ as much as the actions of transformation. Understanding the Hollowing Out Trend The hollowing out of core banking systems refers to the process where mutual banks are moving away from traditional, monolithic core banking platforms towards more modular and flexible solutions. This shift involves either replacing or supplementing existing systems with specialised technologies that can handle specific functions such as digital banking, customer relationship management (CRM), or risk management. Drivers of Change Customer Expectations: With the rise of digital banking, customers now expect seamless, real-time interactions and a high level of personalisation. Traditional core systems, often built decades ago, struggle to meet these modern demands efficiently. Technological Advancements: New technologies such as cloud computing, artificial intelligence (AI), and machine learning offer enhanced capabilities that traditional core systems cannot match. These technologies enable better data analytics, improved security, and more agile operations. Regulatory Requirements: Increasingly stringent regulatory standards require more sophisticated risk management and compliance tools. Traditional core banking systems often fall short in adapting to these evolving requirements. Cost Efficiency: Maintaining and upgrading legacy systems can be costly. By transitioning to more modular solutions, mutual banks can reduce their reliance on expensive legacy infrastructure and invest in innovative technologies that offer better value. Implications for Mutual Banks Enhanced Flexibility and Innovation: By moving away from monolithic core systems, mutual banks can adopt a best-of-breed approach, integrating various specialised solutions that better meet their needs. This flexibility allows for quicker adoption of new technologies and more innovative services. Improved Customer Experience: Modular systems enable better integration with digital channels, providing a more seamless and personalised customer experience. Banks can offer features such as real-time transaction notifications, personalised product selection, and more user-friendly interfaces. Operational Efficiency: Modern systems can automate many manual processes, reducing errors and operational costs. This efficiency is crucial for mutual banks aiming to remain competitive against larger financial institutions. Data-Driven Insights: Advanced analytics and AI capabilities allow mutual banks to gain deeper insights into customer behaviour and preferences, leading to more targeted marketing and improved risk management. "While the transition presents challenges, careful planning and strategic implementation can lead to substantial benefits and a stronger position in the market. Navigating the Transition Strategic Planning: Mutual banks need a clear strategy for transitioning from legacy systems to modern solutions. This includes assessing their current systems, identifying gaps, and selecting appropriate technologies that align with their strategic goals. Vendor Selection: Choosing the right technology partners is critical. Mutual banks should look for vendors with a proven track record, scalable solutions, and the ability to integrate seamlessly with existing systems. Change Management: Transitioning to new systems requires careful change management. Ensuring that staff are trained and that there is minimal disruption to operations is essential for a smooth transition.  Regulatory Compliance: As they adopt new technologies, mutual banks must ensure that their systems comply with all regulatory requirements. Working with vendors who understand the regulatory landscape can help mitigate compliance risks. "The hollowing out of core banking systems in Australian mutual banks represents a significant shift towards more agile, customer-centric, and technologically advanced operations." The hollowing out of core banking systems in Australian mutual banks represents a significant shift towards more agile, customer-centric, and technologically advanced operations. By moving away from traditional monolithic systems and embracing modular solutions, mutual banks can enhance their flexibility, improve customer experiences, and stay competitive in a rapidly evolving financial environment. While the transition presents challenges, careful planning and strategic implementation can lead to substantial benefits and a stronger position in the market. If you will play a part in helping to deliver your Bank's transformation goals, and are interested in exploring how you can move from traditional core banking systems to more modular solutions to improve customer experiences, reduce costs and give you a competitive edge, then Let’s talk .

This article is reproduced in entirety with permission from Confluent, of which Sida4 / 4impact is a proud APAC Integration Partner.

This article is reproduced in entirety with permission from Confluent, of which Sida4 / 4impact is a proud APAC Integration Partner.

This article is reproduced in entirety with permission from Confluent, of which Sida4 / 4impact is a proud APAC Integration Partner.  Original author Adam Bellemare.

This article is reproduced in entirety with permission from Confluent, of which Sida4 / 4impact is a proud APAC Integration Partner.