CIO OPINION
delays and drawbacks are inevitable . CIOs should be fully engaged with business leaders , end-users and IT staff to understand how each legacy technology is used and what the potential repercussions of the integration plan might be . This engagement will help ensure seamless integration and that all stakeholders are on board with the changes .
We ' ve now set the scene in terms of how complex legacy system integration can be .
Ultimately , it will be down to the CIO and their team to carefully evaluate which integration options are best suited to the needs of their business . Some of those options might include the following :
Replacing a legacy system with a modern platform
This approach best suits legacy technologies that are outdated , difficult to maintain , or lack vendor support . The process of typically involves migrating data from the legacy systems to the new platforms , reconfiguring business processes and training endusers on the new systems .
Integrating legacy systems with modern platforms
Augmenting legacy systems with modern technologies
Best suited to legacy technologies that require additional functionality or capabilities that are not available in the legacy system . The process typically involves implementing new software or hardware components that integrate with legacy systems and provide additional functionality .
Migrating data from legacy systems to modern platforms
This is where ‘ garbage in , garbage out ’ becomes absolutely critical . The process involves identifying data to be migrated , exporting the data from legacy systems , cleaning the data and importing the data into modern platforms . It can be a considerable undertaking but will allow the business a " fresh start " in terms of getting its systems and processes up to speed .
Virtualizing legacy systems
Ideal for legacy technologies that are challenging to replace , integrate or upgrade with modern technologies . It involves creating a virtual machine that runs the legacy system , which can be accessed by modern platforms .
This cost-effective approach best suits legacy technologies that still provide value but lack integration capabilities with modern platforms . Integration typically involves implementing middleware or integration software that allows legacy systems to communicate with modern platforms .
Virtualization can be cost-effective compared to system replacement or integration though it may require additional hardware resources . Moreover , virtualization provides a secure container for the legacy system , mitigating inherent security risks associated with legacy systems . p
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