Nguyen Vu Hung: Beyond Agile - Practices and Mindset - Agile Tour Vietnam (Hanoi 2014)

BEYOND & INSIGHTS OF
AGILE ADOPTION:
MINDSET & PRACTICES
Agile Tour 2014 @ Hanoi
2014/11/09
Nguyen Vu Hung, CTO, Septeni Technology

Agenda
1. Introduction
2. The philosophies
3. Case studies (you vote! in random orders)
a. Tools
b. Processes
c. Best practices
4. Closing & Conclusion & Q&A
2014/11/09, Agile Tour 2014 @ Hanoi - Nguyen Vu Hung

About Septeni (Technology)
➔ HQ Septeni Group : 1990/10
➔ Sep Tech: 2013/03
➔ 50 staffs
➔ Web service developement

Self Introduction
1. Nguyễn Vũ Hưng, 1978
2. CTO, Septeni Technology
3. POS:
a. Agile
b. Open Source
c. Project Management
www.facebook.com/nguyenvuhung
vuhung16plus@gmail.com
+84-904-28-7878
"Nguyen Vu Hung is the CTO of Septeni Technology, a development center of Tokyo based Septeni Group that
focuses on developing and operating, mostly, web-based online advertisement systems. He has numerous years of
IT and software development, project/product management in both Japan and Vietnam. Considering himself as a
FOSS and Agile evangelist and being a Agile lover and an CTO, he is also interested in not-so-related domains
such as human resource management and (organization) (re)structuring."

Disclaimer
What is talked and discussed here is
my personal opinion and is NOT the
opinion of my employer(s),
associations and/or groups I join.

What (NOT) to Covered?
1. In this session, we share our experiences,
tools, practices,
2. We don’t cover basic information, defintion
such as “what is Agile?”, “Is this really Agile
or scrum-butt?” here,
3. Scrum. We follow Agile principles but not
only scrum practices.
“At Septeni Technology, we've been trying to apply Agile practices and and its principles for over two
years for IT projects as well as web-based services since the beginning of the company. In this session,
as a case study, with the purpose of sharing our knowledge, I would like to share our best practices for
applying Agile, the tools we are using, the mindset we must have for applying Agile successfully.”

Who Should Join This Session
1. Basically, everyone can enjoy this session,
2. However, a little experience with software
development, Agile/Scrum practices will
make you feel more comfortable with this
session.

High Level Vision & Mission
Yes, A must-have thing on top of everything,
we/you should/do have visions, missions and
strategies for short-term, mid-term and long-term.
Note: Ask you managers/boss to define one -;)
because any company needs one

Japan-Originated Values
1. Scrum
2. Genba (nơi làm việc)
3. “Ba” (場, nơi, tình huống)
4. Kanban (看板, bảng viết)
5. Kaizen (改善, cải tiến)
6. Kata (型, meaning: dạng thức, trình tự)
7. 3M: Muda, Muri, Mura (無駄, 無理, ムラ)

The Mindset of Agile
1. Continous learning
2. Focus on result/goal
3. Rythm is important
4. Release often (one-week
sprint)
5. Stability and quality
Empiricism
Note:Thanks Dương Trọng Tấn for the ideas.

FOSS and Agile - A Great Combo
1. 100% FOSS frameworks adopted in
SepTech,
2. With FOSS:
a. No vendor lock-in;
b. We are only limited by imagination,
3. “Open source improves agile
practices and principles”,
4. Encourage the interactions over
processes (Agile) and tools (FOSS),
5. FOSS shares principles with Agile
manifesto.
Eric Steven Raymond
The Cathedral and the Bazaar
Martin Fowler
The New Methodology

Ngũ Luân Thư (五輪の書)
1. “Cuốn binh pháp kinh điển của người Nhật”
2. Tinh thần chiến binh ở tử địa
3. "Go Rin No Sho mới là sách cho bậc vương"
4. Triết lý chống lưng cho cả một dân tộc
Notes: This slide is in Vietnamese; Images taken from wikipedia.

Cultural Transition
Most of the audiences agree that Vietnamese must/should and is more Amerian-like that Japanese.
Note: Thanks Kakeya-san for the slide

Culture Comparation (2)

2014/11/09, Agile TNooutre 2: 0T1h4a n@ks H Kaankoeiy -a N-sgauny efonr Vthue Hsulidneg

TBD: Scaled Agility
1. Scaled Agile Framework
("SAFe") by Dean Leffingwell,
2. Disciplined Agile Development
(DAD), by Scott Ambler,
3. Large Scale Scrum (LeSS), by
Craig Larman and Bas Vodde.
Being agile at team-level is not enough. We should be agile at organizational level.

(Task) Ownerships
1. Main responsiblity for each
process is defined in RACI table
2. Each task/process has ONE
person to take ownership on it
3. Team members help each
other, but main ownership
belongs to only ONE
4. “Trách nhiệm liên đới"/連帯責任
5. "Cha chung không ai khóc"/"
bóng ở giữa sân"
Project organizational chart

Rhythms of Agile (Scrum)
1. Asa-kai (朝会=morning meeting)
a. All company staffs join
2. Product P
a. Daily meeting
i. Morning: Task for Yesterday and
today, issues
ii. Evening: Do we need to work
overtime today?
b. Teirei meeting (JP/PO/VN)
3. Release weekly on Tuesday
4. Bug statistics at the end of every
months
5. zabbix alert statistics at the end of
every weeks
Regular meeting calendar of a month.
Type of reports
Type of meetings

DevOps - The Next Target
1. Japan does
business/requirement
2. All engineering thingies done
by Vietnamese engineers
3. DEVelopment & OPerationS
group becom ONE
4. Involving
a. Developer
b. Tester
c. Sysadmin
5. Be cross-functional

Let’s Vote for the Next Topics

Topics in Detail
A. Organizational:
1. Organzation structure
2. Technology overview
3. KPIs (Key Performance
Indicator)
4. Roles and Responsibilities
5. Report Lines
6. Bridge SE
B. Management:
1. Knowledge
Management/Transferin
g
2. Result-Oriented
Management
3. Planning
4. Estimation
5. Review Process
F. About the Project:
1. Project P. Overview
2. Agility in project P.
D. Important quality practices:
1. TBD: Software Metrics to
Measure
2. Quality = Measurement
C. Best practices:
1. Jenkins - Continuous
Integration
2. Integrated Test Automation
3. Source Code Quality
4. Code Coverage
5. Unit Test - PHPUnit
6. Test Code
7. Test Driven Development
8. Source Code Refactoring
9. Source Code Quality
10. (git) branching model
E. Tools:
1. Jira - Ticket Management
2. JQL: Powerful Ticket Queries
3. Collaboration with Confluence
4. Stash - a git Repository
5. Chatwork - Realtime Instant
Messenger
6. Google Drive - Realtime
Collaboration Tool
G. Other
1. Book we read

WE ARE HIRING

APPENDIX

Organzation Structure
1. Infrastructure
2. Human Resource/Back Office
3. Developement
a. Project P. We will talk about this project

Technology Overview
1. Infra: Amazon EC,
2. Framework: CakePHP,
3. Database: MySQL RDS,
4. External interface: Facebook API

Project P Overview
1. Japan side
a. 01 Product owner
b. 02 facilitators
2. Non-technical
a. 01 Project manager
b. 03 Project lead
c. 01 Quality assurance lead
d. 01 Bridge SE
3. Technical
a. 10 developers
b. 08 testers
c. 120 KLOC

Agility in Project P.
1. Customized scrum practices
2. Big team to run scrum? (~30 persons)
3. 01 PMs, 01 Bridege SE
4. 3 teams
a. One project leader in each team
b. One scrum master in each time
5. A half is QA
6. A half is developers
Note: We are going to make this structure more flat and cross-functional

Knowledge Management/Transfering
1. Confluence (wiki)
2. Blog labs.septeni-technology.jp
3. Training (external, internal)
4. Pair programming
5. Review processes

Planning
1. Long-term
a. 3-month after the FB API update
plan
b. (For development) We don’t plan
longer than 3 months (the market
changes too fast)
c. New requirements are queued on
the backlog
2. Mid-terms
a. Per projects
3. Short-terms
a. Weekly, per-sprints
b. Daily Product backlog for a quater

Estimation
1. We have not yet using
planning poker
2. Consensus-based
estimation
3. Quite buffered by
individuals
4. Must follow FB’s
deadlines
Topic: What is the accuracy of the estimation
Estimation by team member, at man-day level, using GDrive
Estimation, Gantt chart wth Jira

Test Code
1. 1534 + 1115 tests / 116
KLOC
2. Using PHPUnit
3. Integrated with Jenkins
4. A part of test automation

Test Driven Development
1. This is a technical debt we are
paying
2. We applied it late, not in the
first place
3. We keep updating test
cases/test code during
development
4. Code coverage is an KPI we
measure how good is
TDD/test code
Failed test cases
Stack trace for a failed test case
Test result trend: failed test cases over builds

Source Code Refactoring
1. This is a technical debt we
are paying
2. The sooner the better
3. What we (will) do?
a. Remove dead code
b. Optimization
c. Simplify the source
code (logic, function)
d. Keep all test cases
“green” (don’t break TC)
4. Jenkins’ pmd code size
rules are the KPI for
refactoring
PMD evaluation result
Duplicated code warning using DRY plugin
Notes: Image taken from jenkins-ci.org

Source Code Quality
1. Source code quality metrics
a. Degree of code duplication
b. Degree of code complexity
c. Number of warnings by code static analysis tools
d. Coding conventions (naming rules)
2. Tools
a. Jenkins’ plugins (such as pmd, dry…)
b. Sonar’s plugins
c. <Your tools?>
Bonus: Cyclomatic Complexity (CC)

(git) Branching Model
1. Based on Vincent Driessen’s git
branching model,
2. Defined use of earch branches,
3. Mapping betweens (servers’)
environments and branches,
4. Defined input/output, definition of
done, RACI on each phases,
processes,
5. Sample flow for hotfix and
single/multiple projects
developments
SepTech’s custimized process Original git flow
Branching for hotfix Branching for multiple projects

TBD: Software Metrics to Measure
(Some) software metrics used for measuring source code
quality:
Duplicated code
Coding standards
Unit tests
Complex code
Potential bugs
Comments
Design and architecture
Lines
Lines of code
Comment lines
Classes
Functions
Statements
Public API
Cyclomatic Complexity
Note: We are planning to do it with Sonar

Review Process
1. Basically,we review all output
2. “Cusomters”/PO involves reviewing
3. Review group
a. Source code
b. Release note
4. Design document reviewed by
a. Cross-review
b. Project lead
c. Japan side

Roles and Responsibilities
1. As clear as possible.
2. But not so clear to encourage
cross-functionality.
3. RaR (RACI) based on output.
4. RaR (RACI) based on steps in
software/system development
process.
RACI matrix for all roles in projects

Report Lines
1.

Bridge SE
1. Fill the communication/language gap
between Vietnam and Japan,
2. A must-have position when working with
Japanese,
3. Communication skill is important,
4. We require BrSE to be good at Vietnamese,
Japanese and English.

Result-Oriented Management
1. Đánh giá bằng kết quả?
2. Hay đánh giá bằng quá trình?
3. Hay đánh giá bằng mục tiêu?
4. Với phần mềm, có thể đánh giá bằng KPI
cứng không?
Note: This slide is in Vietnamese

Quality = Measurement
1. Common KPIs to
measure
a. Product KPIs
b. Project KPIs
c. Operation KPIs
d. Customers’ satisfaction
2. Specific KPIs in our
product
a. Number of operation
bugs after release
b. Number of alert emails
Number of system monthly bugs
after release Number of system monthly alert

Jenkins - Continuous Integration
We are learning about Jenkins, a powerful CI
tool. Here is the list of major plugins in we are
using
1. PHP messy detector: pmd
2. Code duplication: dry
3. Code coverage: clover
4. Automation test WebDriver
5. Unit test: PHPUnit

Integrated Test Automation
1. (headless) browsers
a. htmlunit, phamtomjs,
b. Firefox (runs on a slave machine)
2. 97 test cases (simple and complicated)
4. Run with cronjob
5. Coding in Java is a little pain

Source Code Quality
We (aim to) measure source code quality
1. Without human being involved
2. Automatically generated by Jenkins’ plugins by
● Degree of code duplication
● PMD (PHP mess detector)

Code Coverage
1. Source code static analysis
2. Visualized trending
3. Code coverage
a. Targeted:
i. Minimum: 80%,
ii. Better 90%
b. Actual: 80% and 61% (for C0 -
statement coverage)
4. PHP_CodeCoverage,
integrated with Jenkins
5. Clover PHP
6. TODO: Build triggers on
commits
7. Run by cronjob
Coverage tree map
Coverage report
Images taken from: jenkins-ci.org

Unit Test - PHPUnit
1. Training/seminar
3. Number of test cases
a. Batch: 1115 cases
b. Web: 1543 cases
c. Failure rate: < 1%
4. TODO: Build triggers on commits
5. Run by cronjob

Jira - Ticket Management
1. Jira is the heart of our team
a. Ticket (task) management
b. Project management
2. Master tasks
3. Gantt chart
4. Text
a. Richtext formatting
b. Table
c. Quoting
d. Collaboration: Tagging
5. Watching: update notification
by email
6. Dashboard
7. JQL: JIRA query language
8. Scrum board, Kanban,
Master ticket
Gantt chart
Dashboard
Note: Images taken from atlassian.com

JQL: Powerful Ticket Queries
My tasks:
project = PPP and assignee = currentUser() AND status not in (Closed,
Reject)
Issues in last 24 hours
project = PPP and createdDate > -24h AND parent IN (pyx-669) ORDER BY
createdDate ASC
Tasks to remind customers
project = PPP and createdDate <= -2w AND parent IN (ppp-142,ppp-669,
ppp-124) AND status not in (closed, reject) AND assignee in(po1, custumer1,
customer2) ORDER BY createdDate ASC
Remind us important issues
project = PPP and createdDate <= -2w AND parent IN (ppp-142,ppp-669,
ppp-124) AND status not in (closed, reject) AND assignee in(po1, custumer1,
customer2) and priority in (critical, blocker)

Collaboration with Confluence
1. Collaboration wiki
2. Tracking changes/history
3. WYSIWYG richtext editor
4. Integrated with JIRA
5. Lots of plugins
a. Source code beatifulizer
b. Table
c. Diagram
d. Table of content
6. Process document
7. Detail design
8. Rules & guidelines

Stash - a git Repository
1. Following git-flow branching model
2. Commit (pull request)/source code
review
3. Source code browsing
4. Merging permission
5. Fork, clone, download
6. All in one place
a. Everyone
b. Everything
7. Integrated with JIRA, Confluence
Code Review in Action
Branching “network”
Note: Images taken from atlassian.com

Chatwork - Realtime Instant Messenger
1. Realtime
2. Tagging
3. TODO/Scheduling/reminder
4. Text/message quoting
5. Cloud-based webapp
6. TV conference (sucks on Linux)
7. 20+ chat groups for project P
8. RESTful API
9. Suports mobile (iOS, Android) 1. Group chat
2. Mobile support
Picture take from http://www.kddi.com/business/cloud/cloud-app/chatwork/

Google Drive - Realtime Collaboration
1. (One of) the best real-time collaboration tool
2. Cloud based, only requires a browser
3. Real-time editing my multiple people
4. Review-and-resolve feature
5. Tracking document changes/history
6. Good for Q&A
7. Sharing with permission
8. We mostly use
a. Google Sheets
b. (and sometimes) Google Docs

KPIs
1. KPI for an online service
a. Number of bugs reported by users
b. Numbers of zabbix alerts
2. KPI for (development) projects
a. Customer satisfaction survey
b. Number of bugs
i. On production server
ii. Operation/Integration test phase
c. Deadline
Zabbix: An open-source (network/OS/service) monitoring system

Books We Read
Ngũ Luân Thư (五輪の書) Continuous Delivery
Management 3.0 Agile Product Management with Scrum

BEYOND AGILE:
PRACTICES and MINDSET
Agile Tour 2014 @ Hanoi
2014/11/09
Nguyen Vu Hung, CTO, Septeni Technology

Nguyen Vu Hung: Beyond Agile - Practices and Mindset - Agile Tour Vietnam (Hanoi 2014)

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