Many organizations are burdened with maintaining legacy software that often manifest as excessively complex, monolithic applications. Our annual CGI Client Global Insights report shows that modernizing application portfolios is a high priority, year over year. This whitepaper describes CGI’s two-step approach for modernization: (1) replatforming existing applications from bare-metal or virtual machines to containerized target environments and (2) gradually eliminating complex monolithic applications by rebuilding their functionality as native cloud services. Organizations can benefit from this approach whether they own tens, hundreds, or even thousands of applications and need a streamlined approach for containerization.

Those that recognize that it’s time to modernize a large business-critical backbone system that still has years of usefulness left but has run up against its limits of manageable complexity can also benefit from this approach. In both of these scenarios, organizations need a partner who knows how to tackle “big ball of mud” applications – cobbled together from spaghetti code without a discernible architecture – and how to rebuild them piece by piece while applying state-of-the-art practices and principles.