Kailan zai ya kamata ka sake daidaita, maye gida, ko ja tsawar tsohon sistema?

Question

Accepted Answer

Tsohon tsarin aiki ba komshi ba ne ba daidai ba, amma sau da yawa suna da daraja, suna tafiya da kasuwantsi. Shawarar **sake daidaita, maye gida, ko ja tsawar** dole ne ta kasance sannan ta raya da kudi da daraja, ba ta kin tsoho code ba. "Tsoho ne kuma muni" ba dalili bane; "yana tsanin mu" shi ne.

## Me ya dace da shi

```text
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
```

## Kiyaye musamman ta sake rubuta jera

Dukkiyar sake rubuta gida suna ban sha'awa sannan mara kyau ne, suna ci lokaci fiye da a zaci, suna bugi cikin tsohon kurakurai, kuma tsarining aiki ya yi latoka tsakanin tsawon jiya. Yi niyya yin sauyi mai girma a hankali ko maye tsarini mai musamman. Zo aiki yin rubutun duka ne kawai idan hanyoyin girma jiya dade an rufe su.

## Ga abin misali

Monolith yana dada amma yana aiki daidai ba shi ne iyakacin ka, sake daidaita mafi mummunan modules, kar ka sake rubutu. Amma tsarin aiki akan sirrin database da zai rasa karbar samarwa jiya jiya, ba hanya ta haɓakawa, waccan bugi rajiya ne, kuma ka shirya shi da juriya.

## Wani rashin daidai

Shawarwa ta jiki: maye tsarin aiki mai isasshen kukas domin suna baBi'a, ko rike da tsarin mutuwa sakamakon tsada kuɗi. Ka yanke shawarar sakamakon tsada kuɗi da daraja.

Rubutan maye gida ba al'amari ne ba suka tabatai shekaru da sake abubuwa da aka warware; tsohon tsarin aiki da ba a kula da su ba ya zama kusan arzikin damawa.

Ju da shawaron nan daidai, akan jinin, ba a zane sauiki ba, shi ne daya daga cikin mafi saurin shawarwari da babbar TL ke yi.