Summary
In this chapter, you learned about the various challenges with legacy applications and why it is essential to modernize them. You learned about the benefits an organization can get by upgrading its application to the latest technology. Application modernization can be complicated and risky, but it is often worthwhile.
The outcome you get from the upgrade is a trade-off against the amount of investment and energy you put into it. Before defining the modernization approach, it’s essential to understand your legacy system thoroughly, and you learned about various assessment attributes of an application in technology, architecture, and code.
After the assessment, the next step is to define the modernization approach, and you learned about various modernization approaches, including architecture-driven, system re-engineering, and migration approaches. You also learned about multiple techniques for system modernization, including straightforward approaches (encapsulation...
