Complete Rewrite vs Strangler Fig Pattern
Developers should consider a Complete Rewrite when maintaining legacy code becomes too costly, risky, or slow, such as with systems built on obsolete frameworks or with poor documentation meets developers should use this pattern when they need to modernize a large, monolithic legacy application that is difficult to maintain or scale, but cannot be replaced all at once due to business continuity requirements. Here's our take.
Complete Rewrite
Developers should consider a Complete Rewrite when maintaining legacy code becomes too costly, risky, or slow, such as with systems built on obsolete frameworks or with poor documentation
Complete Rewrite
Nice PickDevelopers should consider a Complete Rewrite when maintaining legacy code becomes too costly, risky, or slow, such as with systems built on obsolete frameworks or with poor documentation
Pros
- +It is useful for modernizing applications to leverage new technologies, improve performance, or enable new features that the old architecture cannot support
- +Related to: technical-debt-management, legacy-system-modernization
Cons
- -Specific tradeoffs depend on your use case
Strangler Fig Pattern
Developers should use this pattern when they need to modernize a large, monolithic legacy application that is difficult to maintain or scale, but cannot be replaced all at once due to business continuity requirements
Pros
- +It is particularly useful in scenarios where the legacy system is critical to operations, allowing teams to incrementally refactor or rebuild components while keeping the overall system functional
- +Related to: microservices, refactoring
Cons
- -Specific tradeoffs depend on your use case
The Verdict
Use Complete Rewrite if: You want it is useful for modernizing applications to leverage new technologies, improve performance, or enable new features that the old architecture cannot support and can live with specific tradeoffs depend on your use case.
Use Strangler Fig Pattern if: You prioritize it is particularly useful in scenarios where the legacy system is critical to operations, allowing teams to incrementally refactor or rebuild components while keeping the overall system functional over what Complete Rewrite offers.
Developers should consider a Complete Rewrite when maintaining legacy code becomes too costly, risky, or slow, such as with systems built on obsolete frameworks or with poor documentation
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