* A down-to-earth approach to product design and development. * Understanding of Domain Storytelling methods and tools. * How to make the product design to system development, smooth convergence and can be checked in time.

1. Domain Storytelling
one-size-fit-all process

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HELLO!
I am Michael Chen (陳勉修)
I am here because …
I love to give
sharing
You can find me at

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WHAT
WHY
HOW
DOMAIN
STORYTELLING

4. ⬩ 實踐領域驅動設計的方法、流程與工具。
⬩ 組織成員溝通、聚焦與形成共識的工具。
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Domain Storytelling

5. Product Development Process
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Requirement Design
• Customer
Value
• Biz Value
• Biz to System
• Biz Flow
• System
Process
• System
Architecture
• Program
Structure
• Testing by
Scenario
Development Testing

6. Let’s first look an example
以TA為視角的 Biz Flow

7. Domain Storytelling Quick Guide for Tool
The Pictographic Language
⬩ BUILDING BLOCKS
⬩ SOMETHING ABOUT PRINCIPLES
⬩ GOOD LANGUAGE STYLES
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8. ACTORS
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WORK
OBJECTS
ACTIVITIES
SEQUENCE
NUMBERS
ANNOTATIONS

9. Let’s look again the example
以TA為視角的 Biz Flow

10. Domain Storytelling Quick Guide for Thought
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Scenario-Based Modelling
 Scenarios are stories about people and their activities.
 One diagram, one story.
Scope
 Domain Storytelling is not a “one-size-fits-all” approach.
 There are different level of detail that stories have.

11. Scenario-Based Modelling
⬩ “故事”和“場景”都是業務流程具體、有意義的展示 .
⬩ 首先對預設情況（“80% 情況”）和“happy path”進行建模。
⬩ 透過粗粒度 的領域故事，幫助確定在何處進行更深入的挖掘以及將需要的其
他資源。
⬩ 藉由添加一些「細粒度」的領域故事，理解細節流程，即可開始原型設計。
Domain Storytelling Quick Guide for Thought
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12. Domain Storytelling Quick Guide for Thought
Scope
⬩ Granularity 粒度
⬩ Domain Purity 領域純度
⬩ Point in Time 時間點
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PURE vs DIGITALIZED
AS-IS vs TO-BE

13. Combining the Scope Factors
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COARSE-GRAINED,
PURE, AS-IS
Scope = Granularity × Domain Purity
× Point In Time
FINE-GRAINED,
PURE, AS-IS
FINE-GRAINED,
DIGITALIZED, TO-BE

14. A Typical Journey
⬩ Explore a New Domain
◇ COARSE-GRAINED, PURE, AS-IS
⬩ Drill Down into Subdomains
◇ FINE-GRAINED, PURE, AS-IS
⬩ Introduce New Software
◇ FINE-GRAINED, DIGITALIZED, TO-BE
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15. Let’s look next example
Scenario-Based & Scope

16. From Requirement to
Development & Testing
Domain Storytelling Process

17. Requirement to Design
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Coarse-Grained
Domain Story
Customer
Journey Map
Fine-Grained
Domain
Storytelling
User Stories
Fine-Grained
Domain
Storytelling
User Story
Mapping

18. 完成訂單超商繳費會員 User Story
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As a 在超商繳款的樂屋網會員。
I want 接受與查詢年約訂單購買成功資訊。
So that 取得樂屋網年約刊登產品服務。

19. 完成訂單超商繳費會員 User Story Mapping
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超商繳費
訂單核帳
作業
取得超商
繳費收據
訂單商品
服務開通
作業
收到年約
商品購買
成功簡訊
點擊諫訓
通知連結
登入樂屋
網後檯
瀏覽年約
訂單開通
完成資訊
進行出售
物件刊登
定期取得
超商繳費
清算檔
讀取超商
繳費資料
比對繳費
資料與訂
單資料
確認訂單
繳費完成
開通訂單
服務商品
通知訂單
會員訂單
服務開通
資訊
訂單查詢
作業

20. Design to Development
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System Architecture &
Program Structure
System Level Fine-Grained
Domain Storytelling
Biz Level Fine-Grained
Domain Storytelling
Implementation Level Fine-
Grained Domain Storytelling
DDD
戰術設計

21. Development to Testing
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System Architecture &
Program Structure
BDD & Example
Mapping
System Level Fine-
Grained Domain
Storytelling
Scenario Testing

22. Domain Storytelling
is not a “one-size-fits-all” approach.
But can be a “one-size-fits-all ” process.
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23. References
⬩ BOOK:
◇ Domain Storytelling: A Collaborative, Visual, and
Agile Way to Build Domain-Driven Software
⬩ Website:
◇ Domain Storytelling - Domain Storytelling
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THANKS!
Any questions?
You can find me at:
michael.mh.chen