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Succeeding With Agile: Software Development
                Using Scrum

                 David Ko
+ 做計劃是scrum的基礎
+ Agile團隊所做的計劃比waterfall團隊更準確
+ 早期規劃只要掌握要交
付內容的重點
 + 不考慮細節, 並不是不想承諾,
   要交付的內容是甚麼
 + 而是要保留一些空間, 來處理
   不確定性的事情
 + 細節放到以後再考慮
+ 將時間上的浪費減少到最低
  – 避免對假設性太高的東西做計劃
+ 允許在最佳的時間點才做決定
  – 避免一開始做太多決定, 確定了解才做決定
+ 允許我們改變要走的路徑
  – 充分計畫只讓我們知道大方向
  – 隨著細節的出現, 我們再做出調整
+ 幫助我們避免掉落”計畫是完美”的陷阱
+ 加班一個星期是可以的
 – 可提高效率並增加一些
   額外的時間
+ 但是不能連續兩周加班
以上
 – 否則代表你有了一個不
   能通過加班來解決的問
   題
+ 讓你保留一些能量, 在
  真正需要時使用
+ 讓你保有創造力的空間
+ 讓你不會上完班後就枯
 竭了, 下班後還能有動
 力持續學習
+ 時間無法增加, 只能增加熱情
  – 團隊中熱情的人越多, 團隊就越容易充滿能量
+ 定期的短暫休息
+ 固定長度的工作週期
  – 25 min
    全力衝刺工作
    不接電話, 不回郵件

 – 5 min: 短暫休息
+ 每四個週期過後, 有一
 個15-30min的休息
範圍        時程
     品質


     資源
+ 這是短視的作法
+ 之後團隊會因為rework或是系統不穩定而讓
  我們無法全速前進
+ 快速前進的最好方式就是保持高度品質
+ 就算要犧牲品質, 你也無法決定要怎麼做才
  夠趕上進度, 如
 – 要犧牲多少品質, 或是
 – 要犧牲那些品質
+ 訓練新人需要花時間
+ 人多溝通會增加複雜度
+ 加人的時間點是個藝術
+ 加了人是否有幫助無法預測
+ 可行, 但是很多時候不適用. 如
  – 若是合約已經簽訂了怎麼辦?
  – 若是產品展期或是廣告日期已經確定了怎麼辦?
+ 它是放棄某些功能的一
  種優雅說法
+ 如果要調整範圍, 要先
  確定我們是依照優先順
  序來開發
+ 雖然令人失望, 但不是
  世界末日
+ 犧牲品質不是一個好的選擇
+ 增加資源的效果是不確定的
+ 延展時程是可行的, 但是不確定是否需要更
  久時間
+ 改變範圍是不錯的選擇, 但是要確保照優先
  順序來實作功能
+ 主管常常把它們視為相同
+ 估算不能是一個單一數值, 應該是個範圍
+ 需要增加信心指標
+ 例如
  – 在這個sprint可以處理30-35人時的工作
  – 達成這個承諾大約有90%信心程度

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Chapter 15 planning