Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Refactoring Legacy Applications

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for Aaron Holbrook Aaron Holbrook
June 10, 2017
Technology
110
0

Refactoring Legacy Applications

Avatar for Aaron Holbrook

Aaron Holbrook

June 10, 2017

More Decks by Aaron Holbrook

See All by Aaron Holbrook
Debugging PHP Applications
Avatar for Aaron Holbrook aaronholbrook
0
110
Build a PHP Safety Net: Automated Checks Before You Commit
Avatar for Aaron Holbrook aaronholbrook
0
89
Safe and Happy Deploys Using Automation
Avatar for Aaron Holbrook aaronholbrook
0
220
Introduction to IDEs and Debugging
Avatar for Aaron Holbrook aaronholbrook
0
210
Making WordPress Search Kick-ass with Elasticsearch
Avatar for Aaron Holbrook aaronholbrook
0
1.7k
Static Site to WordPress
Avatar for Aaron Holbrook aaronholbrook
0
160
WordPress is a CMS, DAMMIT!
Avatar for Aaron Holbrook aaronholbrook
7
2.2k
WordPress & Version Control (v2) - WordCamp Chicago 2012
Avatar for Aaron Holbrook aaronholbrook
9
5.6k

Other Decks in Technology

See All in Technology
会社紹介資料 / Sansan Company Profile
Avatar for Sansan, Inc. sansan33
PRO
16
410k
ADOTで始めるサーバレスアーキテクチャのオブザーバビリティ
Avatar for Ryotaro Harada alchemy1115
2
270
TanStack Start エコシステムの現在地 / TanStack Start Ecosystem 2026
Avatar for Takahiro Ikeuchi iktakahiro
1
360
AI環境整備はどのくらい開発生産性を変えうるか？ #AI駆動開発 #AI自走環境
Avatar for HisayaUchida ucchi0909
0
120
Autonomous Database - Dedicated 技術詳細 / adb-d_technical_detail_jp
Avatar for oracle4engineer oracle4engineer
PRO
5
13k
数案件を同時に進行するためのコンテキスト整理術
Avatar for sutetotanuki sutetotanuki
1
170
🀄️ on swiftc
Avatar for giginet giginet
PRO
0
300
ストライクウィッチーズ2期6話のエイラの行動が許せないのでPjMの観点から何をすべきだったのかを考える
Avatar for nakamichi ichimichi
1
320
自己組織化を試される緑茶ハイを求めて、今日も全力であそんで学ぼう / Self-Organization and Shochu Green Tea
Avatar for naiban naitosatoshi
0
340
Zero Data Loss Autonomous Recovery Service サービス概要
Avatar for oracle4engineer oracle4engineer
PRO
4
14k
生成AI時代のエンジニア育成 変わる時代と変わらないコト
Avatar for starfish719 starfish719
0
540
申請待ちゼロへ！AWS × Entra IDで実現した「権限付与」のセルフサービス化
Avatar for みずほリサーチ&テクノロジーズ株式会社 先端技術研究部 mhrtech
1
280

Featured

See All Featured
How to make the Groovebox
Avatar for あそなす asonas
2
2.1k
How Software Deployment tools have changed in the past 20 years
Avatar for Geshan Manandhar geshan
0
33k
The Invisible Side of Design
Avatar for Vitaly Friedman smashingmag
302
51k
The Success of Rails: Ensuring Growth for the Next 100 Years
Avatar for Eileen M. Uchitelle eileencodes
47
8k
A designer walks into a library…
Avatar for Paul Jervis Heath pauljervisheath
211
24k
How to Talk to Developers About Accessibility
Avatar for Jason CranfordTeague jct
2
170
The Pragmatic Product Professional
Avatar for Laura Van Doore lauravandoore
37
7.2k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
Avatar for Vitaly Friedman smashingmag
254
22k
Impact Scores and Hybrid Strategies: The future of link building
Avatar for Tamara Novitovic tamaranovitovic
0
250
Data-driven link building: lessons from a $708K investment (BrightonSEO talk)
Avatar for Szymon Słowik szymonslowik
1
1k
世界の人気アプリ100個を分析して見えたペイウォール設計の心得
Avatar for Akihiro Kokubo akihiro_kokubo
PRO
68
38k
The agentic SEO stack - context over prompts
Avatar for schlessera schlessera
0
740

Transcript

  1. Refactoring Legacy Applications aaronjholbrook aaronjholbrook.com no stock photography was harmed

    in the making of this deck
  2. None
  3. None
  4. None
  5. None
  6. None
  7. None
  8. None

  9. Why Refactor?

  10. Things to be careful of Refactoring just to refactor (superficial

    or unnecessary) Taking on too much at once (spinning plates) Staleness (not shipping) Partial or incomplete refactor Not testing
  11. None

  12. Why are YOU refactoring?

  13. Why I refactor

  14. Comprehension

  15. Maintainability

  16. Simplification

  17. Co n s i s t e n c y

  18. Test Debug Take it slow Simplify Strategies & Techniques

  19. File length File naming File and directory organization Namespace Strategies

    & Techniques

  20. Decouple Single Responsibility Exit Early / Exit Often Abstract complexity

    Strategies & Techniques
  21. None
  22. None

  23. aaronjholbrook aaronjholbrook.com Aaron Holbrook Director of Web Engineering Zeek Interactive