User story reference
Reference (read): User Stories (1) 什麼是 User Story? -
by ihower 人人都該學習的技術：從 Idea 到成品，撰寫 User Story 的能力 - by
xdite 如何寫出 User Story Agile Atlas - User story
執行細節 10 Tips for Writing Good User Stories - 簡明的10個Tips
Agile Reference (unread): Displined Agile 2.0