For stakeholders, there may be no immediate incentive for application modernization. You need to choose the most cost-effective method and deliver results faster. The following diagram shows the modernization approach:
Legacy system modernization approach
After your system assessment, you need to understand the existing architecture pattern and limitations. As per your tech stack, you need to evaluate migration tools. For example, you may choose to use an emulator for mainframe migration or vCenter if rehosting your application to VMware. You can select various modernization approaches and create a proof of concept (POC) to identify any gaps. Some approaches are listed here:
- Architecture-driven modernization: The architecture-driven approach requires to achieve the most agility. Often, an architectural approach is language-independent and platform-independent by applying service-oriented patterns, which gives the development team the flexibility to...