Moderate modernization potential as remaining legacy parts will be holding back

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Rebuild Gradually
Another proven way to modernize your software is the app-by-app approach. In this scenario, you pick the most ROI-effective applications in the legacy solution and rebuild them one by one.

Benefits:

Requires less management and investment resources (compared to total system revamp)
Makes the min negative impact on running business operations
Risks:
May involve too many integrations with the chile mobile database existing legacy system to ensure business continuity
Does not work well when several components are being rebuilt simultaneously
That is exactly how we managed an epic insurance system overhaul for Insureon — Inc. 500’s #1 fastest-growing insurance company.

Reuse
And the least invasive legacy system modernization approach is, of course, to reuse the existing IT infrastructure as much as possible. Here is how you can get there:

Encapsulate
The legacy software remains the same, and some of its parts become available for integration with other systems or applications via an API layer.