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    # 右移測試的實作分享 - 蘇義傑(RJ) {%hackmd @DevOpsDay/BymyqYaeo %} > 各家講者出來分享自己的經驗多少都有些公司內規和公關要求的限制,有些不方便分享的地方(例如:不要張貼簡報截圖)還請大家多多包涵喔(不然就更多人不敢出來分享了) > [name=DevOpsDays Taipei 2022] > 從這開始 ###### tags: `DevOpsDays Taipei 2022` 產品品質 - Do right thing - Do thing right 產品面臨的挑戰 - 全球化競爭 - 消費者接受資訊快速 - 市場選擇 網路平台多樣性 - 產品需求變化快速 敏捷開發 快速透過實驗和數據調整產品 迭代週期短給測試更多的時間壓力 沒有 100% 的自動測試 有方法在上線後持續做測試?讓開發團隊可以比客戶更早發現問題 開發上線前:左移測試 開發上線後:右移測試 左移 - 越早發現問題越好 右移 - 持續性 - 上線後的測試/監測持續改進品質 - 用對的方法在適當的時間點做測試 常見的右移測試方法 - Discovery - A/B test - fakedoor - Delivery - feature flag/Ring deploy - telemetry A/B Test - 利用數據優化產品及服務 - 小規模改進獲得更高的使用與轉換 - 降低實驗風險及成本找出最符合需求的決定性因素 A/B Test flow 決定測試目標+假設變數 定義收集資料和決策指標/週期 挑選客戶 發布並收集反饋 持續改進 Fake Door - 測試功能是否真的被需要 - 推測顧客的真實購買意願 - 直接面對消費者,讓功能接受市場檢驗 Fake Door flow 決定測試目標+假門測試的呈現方式 定義收集資料和決策指標/週期 挑選客戶 發布並收集反饋 持續改進 Windows Application 案例分享 測試產品與 Windows 的相容性 2 week release \~ 7M machines Telemetry 很多 error 在 in house 是測不出來的 Ring Deployment \~ by company -> by device 數據被淹沒 - P95+P99+P999 - VIP Monotor 敏捷開發的精神 - 重點不在快速 -> 快速學習 - 檢討改進 - 產品品質 - 團隊運行 - 持續改進 Telemetry + Ring Deployment - 定義哪些 telemetry 需要被搜集 - 挑選分批部署的客戶 - 重要客戶和一般客戶 - 過去歷史有無回報產品問題 - 不同的 OS or platform - 產品發佈後的應對 - 小規模 - 收集數據和過去數據比較有無異常 - support calls - 緊急應對策略 Left or Right

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