Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Running Mob Programming - How we made our team ...
Search
Ikuo Suyama
August 07, 2019
Programming
0
2.3k
Running Mob Programming - How we made our team x 4 faster!
Agile2019 at D.C. Lightning Talk
Running Mob Programming, How we made our team x 4 faster!
Ikuo Suyama
August 07, 2019
Tweet
Share
More Decks by Ikuo Suyama
See All by Ikuo Suyama
[zh-TW] DevOpsDays Taipei 2025 -- Creating Awesome Change in SmartNews!(machine translation)
martin_lover
1
950
DevOpsDays Taipei 2025 -- Creating Awesome Change in SmartNews!
martin_lover
1
420
Creating Awesome Change in SmartNews! En
martin_lover
0
130
Creating Awesome Change in SmartNews
martin_lover
1
600
Dive into JVM JIT Compiler
martin_lover
2
240
InvokeDynamic完全に理解した / Completely Understand InvokeDynamic
martin_lover
0
940
10分で完全に理解するInvokeDynamic / 10min To Understand InvokeDynamic
martin_lover
0
840
High Performance FastAPI EN
martin_lover
0
1.1k
High Performance FastAPI
martin_lover
17
9.1k
Other Decks in Programming
See All in Programming
すべてのコンテキストを、 ユーザー価値に変える
applism118
3
1.3k
脱Riverpod?fqueryで考える、TanStack Queryライクなアーキテクチャの可能性
ostk0069
0
120
Goで作る、開発・CI環境
sin392
0
230
Result型で“失敗”を型にするPHPコードの書き方
kajitack
5
650
Quand Symfony, ApiPlatform, OpenAI et LangChain s'allient pour exploiter vos PDF : de la théorie à la production…
ahmedbhs123
0
190
チームのテスト力を総合的に鍛えて品質、スピード、レジリエンスを共立させる/Testing approach that improves quality, speed, and resilience
goyoki
5
870
WebViewの現在地 - SwiftUI時代のWebKit - / The Current State Of WebView
marcy731
0
120
Claude Code + Container Use と Cursor で作る ローカル並列開発環境のススメ / ccc local dev
kaelaela
9
5k
#QiitaBash MCPのセキュリティ
ryosukedtomita
1
1.3k
設計やレビューに悩んでいるPHPerに贈る、クリーンなオブジェクト設計の指針たち
panda_program
6
2.1k
『自分のデータだけ見せたい!』を叶える──Laravel × Casbin で複雑権限をスッキリ解きほぐす 25 分
akitotsukahara
2
640
Node-RED を(HTTP で)つなげる MCP サーバーを作ってみた
highu
0
120
Featured
See All Featured
The Cult of Friendly URLs
andyhume
79
6.5k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
30
2.1k
How To Stay Up To Date on Web Technology
chriscoyier
790
250k
Building Applications with DynamoDB
mza
95
6.5k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Statistics for Hackers
jakevdp
799
220k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
35
2.4k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
How GitHub (no longer) Works
holman
314
140k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
53
2.9k
[RailsConf 2023] Rails as a piece of cake
palkan
55
5.7k
Transcript
Running Mob Programming How we made our team x 4
faster
Ikuo Suyama @martin_lover_se ➔ From Tokyo, Japan ➔ ’LODEO’, CyberAgent
➔ Backend Engineer ➔ Apprentice Agile Coach
Mob Programming "Mob Programming A Whole Team Approach" Agile 2014,
Woody Zuill “On the same thing... At the same time... In the same place... On the same computer...
Our Mobbing Style
Our Mobbing Style ➔ Session ◆ 1 Session is 45
min ◆ Taking 5 - 10 min rest at each session ➔ Changing Driver frequently by timer ◆ Changing driver at 5 - 15 min ◆ All participants can be a driver at each session For keeping Concentration
Our Mobbing Style “for an idea to go from your
head into the computer, it MUST go through other's agreement. The driver can also join the discussion
Just following these rules, Our results x 2 faster than
ever!
X 2…?
X 4, wasn’t it…?
Yes, We SCALE our Mob.
Initial Approach: Scale-UP ➔ start from 3 people ➔ Increment
to 6 people...
Scale-UP: Problem Efficiency (1 / leadtime) Number of people Note:
This data is NOT accurate
Note: This data is NOT accurate ➔ It doesn’t scale
linearly ➔ Sweet spots is 3 - 4 people Scale-UP: Problem Low Resource Efficiency Resource Efficiency is getting worse
The Solution: Scale-OUT
Scale-OUT: Synced-Mob
Scale-OUT: Synced-Mob Keep the lines of communication open
2 mobs work together! Scale-OUT: Synced-Mob On the same thing...
At the same time... In the same place... But different tasks
Scale-OUT: Synced-Mob Reducing Sync point ➔ Mob Feature planning ◆
Independently Task Slicing ➔ Mob interface design & implementation ◆ Starting define interface with all
Scale-OUT: Synced-Mob X2 FASTER!! X2 FASTER!! Quite simple, but it
works well!!
If we got only 5 people…?
Like This…?
Oops! JOYFUL! EXHAUSTED…
Oops! JOYFUL! EXHAUSTED… Tend to Avoid…
Solution: Double-Linked Mob
Double-Linked Mob <This is HIGHLY EXPERIMENTAL!> Same effectivity as 3-3
synced mobs! ➔ Linking-Navigator ◆ 2 Mobs connect with navigator ◆ Rotate linking-navigator at each session ◆ Easy to found problems between each mobs
1/2 lead-time mob, X 2 parallel we got x 4
faster!
➔ Using Mob, we got x 2 faster ➔ To
achieve x 4 faster ◆ Scale-UP • Cause low-resource efficiency ◆ Scale-OUT • Synced-Mob • Double-Linked Mob <Experimental!> Conclusion
Twitter: @martin_lover_se Thank you for your kind attention!