Sistem legacy iku ora nyaman nanging asring duwe nilai, lan nglakoni bisnis. Keputusan kanggo refactor, ngganti, utawa pensiun kudu dipandu dening biaya lan nilai, ora dening rasa jengkel marang kode lawas. "Lawas lan ala" bukan alasan; "ngabiyen kita" iku alasan.
Mengapa iki penting
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REFACTOR (improve in place) when:
- Core logic is sound; it's holding business value
- Problems are localized; you can improve incrementally
REPLACE (rewrite/migrate) when:
- It blocks important work and can't be incrementally fixed
- Maintenance cost > rebuild cost over a sensible horizon
- It's a growing security or reliability liability
RETIRE (remove entirely) when:
- Its value no longer justifies any maintenance cost
- Usage has dwindled; a simpler path exists