優化工程師邏輯視角下的微信“拍一拍”功能

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 想必大家近期都被微信的上線“拍一拍”功能刷屏了，也都津津樂道地分享評論亦或同時樂此不疲地互動微信小夥伴。張小龍所說的“微信史上僅需一行代碼的有趣功能” 這種源自產品經理的浪漫在優化工程師視角下有哪些點睛的妙處以及我們能從中借鑑這一妙筆到系統工程中，讓我們一同來探究一下。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong"}],"text":"簡化無附加值的過程量——簡約的握手信號交互"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 無附加值（non-value added）值的過程量通常被當作過程中的浪費，需要儘可能的簡化或消除。在機器代碼的通信世界裏，各個獨立的個體或設備是需要通過握手信號來驗證通信的暢通和質量的可靠，而後再通過接口通訊協議來實現信息和信號的轉遞。在非正式環境下人與人的交流也往往以寒暄開始，這既能保證之後關鍵信息交流的效果又不失人與人之間的禮儀和溫度。但寒暄的預熱階段在大多數環境中並不能把關鍵信息摻雜在其中。"}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/9b/9b4b684497ea294872445f5128bc1156.jpeg","alt":null,"title":"","style":[{"key":"width","value":"100%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 而微信交流平臺的信息交流更是把飽含禮節溫度的話語轉變成一系列冰冷的綠色文字框。這就勢必會把溝通前的握手預熱環節變得不那麼自然。如何選擇適合關係又恰當場合的開場寒暄會變得些許複雜。而“拍一拍”作爲交互起始信號在各種不同的場合下更加簡單實用又不會引起太多唐突和不適。當無附加值的過程被簡化後，會使微信信息的交流更加簡潔高效。人們不需要去考慮如何選取一個寒暄話題來開啓對話，也許“拍一拍”發出後，對方會先於你開啓話題。把非必要的無附加值環節剔除，把必要的無附加值環節簡化會使系統更加流暢高效。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong"}],"text":"優先級排序——因時因地制宜的任務管理"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 優先級一直是系統工程邏輯中的關鍵因素，通常情況下系統中的各個區塊是很難自我反饋優先級的。如果能夠使要處理的系統對象實時反饋狀態從而幫助系統決策當前任務的優先級和措施會使系統有極大的優化和提升。"}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/3a/3a0a81325dc57c73a85fb63e798966f4.jpeg","alt":null,"title":"","style":[{"key":"width","value":"100%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 微信“拍一拍”功能，會給對話的對象發出一個實時的信號，這樣對方會根據自己當前的狀態來選擇與優先級高的人對話。“拍一拍”包含實時信號能在對方衆多微信聯繫人中突出，但又不主動標立優先級的處理會使對方更加明晰知曉當前任務並做好任務優先級排列。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 大多是時候系統對紅燈示警及其敏感，卻忽視黃燈提醒的重要性，主要由於優先級邏輯不明晰造成的。如果黃燈的提醒有更好的時宜和反饋會使整個系統的決策有更好的處理和應對。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" "}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong"}],"text":"看似冗雜的信息互動——看板模式中的激勵"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 看板（Kanban）是在系統中進行物流或信息流的傳遞，是一種信息的拖拉和激勵，以便使系統中的個體能夠查找不足並向目標方位接近。"}]},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/e2/e2a7c22913edfb741a7bb26583491fcd.jpeg","alt":null,"title":"","style":[{"key":"width","value":"100%"},{"key":"bordertype","value":"none"}],"href":"","fromPaste":false,"pastePass":false}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 人工智能中很多功能的實現是基於任務邏輯的判斷和計算。爲了任務完成的簡潔，往往不去設置非目的性的交互。但在控制系統中，隨機交互網絡也會使網絡中的個體相互有有邏輯的參照和比對，從而在系統中的個體不再是某一個或幾個任務載體，而是一個系統互聯的節點。也許有時冗雜的信息互動會在系統中扮演不可估量的角色。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 微信“拍一拍”功能成功復刻了人與人見面後打招呼的場景。一句“你好”，一個微笑並不一定會有後續的信息交互，但在人們的意識中會增強對周圍環境的感知。人們有較強的集體氛圍意識，因爲情感的表達更爲直接，而智能系統中的個體並不能體會到除了邏輯產出以外的信息。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" 在分析計算能力不斷提升的系統中，適時增加冗餘的系統交互，也許會幫助系統中的個體去對照差異性並加入自我行爲的分析，從而增加整個系統的多元化。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong"}],"text":" 結語："},{"type":"text","text":"從人與人在機器上互動到人機互動或許有很多路要走，隨着機器計算力的大幅提升，也許人機互動會變得更加有人情味。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}}]}