有關本發明的詳細說明及技術內容，現就配合圖式說明如下： 請參閱圖1，本發明基於用戶情境自動轉換用戶角色的方法，搭配一資訊系統1實施，該資訊系統1是由一服務供應端所建置，該服務供應端可為一即時通訊服務供應商、一社群服務供應商或一雲端服務供應商等。該資訊系統1至少包含一入口伺服器11以及至少一服務伺服器12，該入口伺服器11與該服務伺服器12分別具有連網功能，令一外部終端設備得經一網際網路3與其連接，該入口伺服器11可基於一鑑別授權及帳務伺服器(又稱AAA伺服器)架構設計而成，一實施例中，該入口伺服器11得經程式設計而具有一行為回饋的功能。再者，該入口伺服器11內建或外接有一角色資料庫111，該角色資料庫111與該入口伺服器11直接資料連接，以接受該入口伺服器11對該角色資料庫111所發出的資料讀取請求或資料寫入請求。該角色資料庫111得以關聯式資料庫架構或其他資料庫架構設計而成，其中，所稱關聯式資料庫架構可為MySQL、Microsoft Access等。 另一方面，該服務伺服器12得經加載至少一程式軟體而運行，對經由該網際網路3進入該外部終端設備(即用戶)提供一服務。舉例來說，該服務伺服器12得根據該程式軟體而提供一即時通訊服務、一串流影音服務、一電子商務服務、一資訊推播服務或一用戶原創(User Generated Content，簡稱UGC)服務等。然而，本發明於此僅示例每一該服務僅由其中一該服務伺服器12提供，但並不以此為限。於一實施例中，該服務伺服器12對該外部終端設備提供服務的時機，是在該入口伺服器11對該外部終端設備進行驗證，而於該外部終端設備獲得驗證後，該入口伺服器11要求該服務伺服器12對該外部終端設備提供該服務時，也就是說，該服務伺服器12是在該用戶獲得該入口伺服器11驗證，而被該入口伺服器11要求對一用戶2提供該服務。再者，本發明為具體說明本案技術於此遂將該入口伺服器11與該服務伺服器12區分開說明，但實際應用上，該入口伺服器11與該服務伺服器12得建置於同一終端伺服設備之上，又或者是建置於不同的終端伺服設備。 承上，該外部終端設備可為該用戶2所有，該用戶2於本發明實施前已與預備取得該服務的該服務供應端簽訂服務約定。該外部終端設備具連網功能，而能經該網際網路3連接該資訊系統1。又，所稱該外部終端設備可為一行動通訊裝置、一桌上型電腦或其他具連網功能的電子設備。 本發明該方法實施之前，先針對該用戶2建置複數角色變數20並儲存於該角色資料庫111之中，該些角色變數20被設定為與該用戶2為關聯，該些角色變數20進一步可以該用戶2向該服務供應端註冊的一身分帳號作為資料讀取的索引。又，本發明更令每一該角色變數20對應於其中一情境，所謂情境可以是由一個或多個用戶使用因子22所組成，其中，本發明該用戶使用因子22是判斷該用戶2所處情境的重要指標，該用戶使用因子22被記錄於每一該角色變數20之中而被設定為一條件，令該入口伺服器11得根據至少一該用戶使用因子22了解該用戶2當下情境，作出適當地切換。又，該用戶使用因子22得為該用戶2於該服務中的時間、地點、慣用行為特徵、特殊行為特徵或切換服務請求等。舉例來說，該用戶使用因子22可以是由單一因素或複合因素所組成，其中，前述該用戶2於該服務中的時間或地點即是由單一因素所組成的該用戶使用因子22，僅要時間或地點符合，即取得該用戶使用因子22而可進一步推斷當下情境。此外，該地點可以是由一衛星定位訊號取得。再者，前述該用戶2於該服務中的慣用行為特徵即可以是由複數因素所組成，於一實施例中，慣用行為特徵是由時間與地點的因素組成，當該用戶2於該服務中同時滿足上述因素將取得為慣用行為特徵的該用戶使用因子22。再者，慣用行為特徵的認定可為該用戶2於一資料收集時間內，長時間或較高機率處於的使用狀態，如該用戶2每日上午8點至下午5點會位於公司，即可將此慣用行為特徵。另一方面，所稱特殊行為特徵即指該用戶2較為特殊的使用因素，例如參加匿名社團，特殊喜好，或業外特殊職業等。又，本發明該些角色變數20得分別以一資訊檔的形式儲存於該角色資料庫111之中。更詳細來說，本發明利用大數據(Big data)技術來收集該用戶2於至少一該服務中的該用戶使用因子22，以辨識出該用戶2於進行該服務過程中的至少二情境。又，本發明於此遂以運行於一即時通訊軟體(如Line通訊軟體)進行舉例，但並不以此為限。該用戶2在初次運行該即時通訊軟體而欲與該服務供應端進行該身分帳號的註冊時，該即時通訊軟體除要求該用戶2提供必要的身分資料之外，更提供該用戶2可自主定義的至少一角色情境編撰選項，令該用戶2可針對自我需求自定義特定情境中所用的角色，自定義內容可為角色的身分以其啟動該角色的情境，該情境則如前揭可為角色的使用時間點、角色的使用地點、角色的限定使用條件等。承上，該即時通訊軟體即於該用戶2自定義完成後，將該用戶2針對該角色情境編撰選項填入的內容回傳該入口伺服器11，該入口伺服器11則將所接收內容設定為與該用戶2為關聯的其中一該角色變數20。除此之外，該即時通訊軟體更可經程式的編撰而具有一角色情境編撰設定，令該用戶2得隨時根據使用需求自定義所欲轉換的角色及其情境。 除上述提供該用戶2自定義角色情境的實施方案之外，本發明更可於該用戶2體驗該服務的過程中或於該用戶2欲與該服務供應端進行註冊取得該身分帳號的當下，對該用戶2用以連線該資訊系統1的至少一該外部終端設備進行資料收集，以取得該用戶2的使用習慣及使用記錄，並以收集的資料來進行至少一該角色變數20的設定。舉例來說，本發明利用該入口伺服器11記錄該用戶2要求提供服務或退出服務的時間點，而以時間點作為設定該角色變數20的情境基礎。或者，對該用戶2用以取得該服務的該外部終端設備進行定位檢知，將定位檢知出的位置訊息作為設定該角色變數20的情境基礎。進一步舉例說明，當定位檢知的結果，顯示該用戶2一天的部分時間會分別位於內湖科學園區及台北市某社區大樓，其中內湖科學園區屬於辦公區域，台北市某社區大樓則屬於住宅區域，即將上述二位置視為不同的該用戶使用因子22而分別定義屬於不同的情境，並與其中一該角色變數20為關聯，例如，位置為內湖科學園區的情境，設定為上班身分的該角色變數20，而位置為台北市某社區大樓的情境，則設定為下班身分的該角色變數20。 承上，本發明亦可以複數該用戶使用因子22設定該角色變數20，當該用戶2一天之中早上9點到晚上5點會位於內湖科學園區，其餘絕大部分時間則會位於台北市某社區大樓，該用戶2位於內湖科學園區的時段屬於上班時段，且內湖科學園區亦屬辦公區域，故可將上述二該用戶使用因子22歸類為同一該角色變數20之中，並令該角色變數20定義為上班身分。該用戶2位於台北市某社區大樓的時段屬於下班時段，且台北市某社區大樓屬於住宅區域，故可將上述二該用戶使用因子22歸類為同一該角色變數20之中，並令該角色變數20定義為下班身分。再者，定位服務的位置資訊可經與一地圖服務供應商(如Google Map)取得，於此不再贅述。 除上述情境定義方案之外，亦可根據該用戶2瀏覽網頁的習慣作為情境定義的基礎，進一步來說，該入口伺服器11得對該用戶2用以取得該服務的該外部終端設備進行網路瀏覽記錄資料(如網頁歷史資料、小型文字檔案(Cookie))的收集，藉此可分析出該用戶2習慣於特定時間造訪特定網頁進行瀏覽，如該用戶2時常在晚間8點連接一購物網頁，即可將此視為該用戶使用因子22而定義為一購物情境，並關聯於購物身分的該角色變數20。再者，本發明於此雖然僅以購物的實施例進行舉例，但實際上並不以此為限，亦可針對一社群網頁、一新聞網頁或一用戶原創網頁等進行情境的收集。 除此之外，本發明亦可針對該用戶2於該外部終端設備所選用的該服務作為情境定義的基礎，例如該用戶2選擇該服務為影音串流時，即可將此視為其中一該情境而與為觀眾身分的該角色變數20為關聯。倘若該用戶2於該外部終端設備上選用該服務為遊戲時，即可將此視為另一該情境而與玩家身分的該角色變數20為關聯。於一實施例中，本發明於前所揭露的該即時通訊軟體可經過該即時通訊服務供應商所發佈的軟件更新或原廠內建，而與至少一加值應用服務為連動，也就是說，該用戶2得透過操作該即時通訊軟體直接啟動該加值應用服務，所稱該加值應用服務可如第三方支付、串流視頻、電子商務或遊戲等。於此實施例中，該資訊系統1可透過該外部終端設備調查該用戶2以該即時通訊軟體啟動其中一該加值應用服務的時間點及所啟用的其中一該加值應用服務，並將調查結果視為該用戶使用因子22而定義為其中一該情境。再者，本發明於此所稱該加值應用服務亦可為以一流動應用程式(Mobile Application，簡稱APP)的方式加載於該外部終端設備 再者，本發明更可透過影像解析等技術，解析該用戶2對該資訊系統1提出要求取得該服務的當下使用環境，並在解析後將結果定義為特定或其中一該角色變數20的情境。舉例來說，本發明可以透過致能該用戶2用以取得該服務的該外部終端設備的一攝像模塊，令該攝像模塊擷取該用戶2的當下使用環境，而後可透過加載於該外部終端設備的影像辨識軟件對當下使用環境進行解析，或者是令該攝像模塊在擷取當下使用環境後產生一待辨識影像資訊回傳該資訊系統1，交由該資訊系統1對該待辨識影像資訊進行影像辨識。此後，利用該資訊系統1對影像辨識結果進行分類或檢知，將影像辨識結果視為其中一該用戶使用因子22而定義為其中一該情境。 再者，本發明於一實施例中，令該資訊系統1對該用戶2用以與其連接的至少一該外部終端設備進行該情境的偵測後，由該資訊系統1發送一包含有複數該情境的情境分析資料，該情境分析資料更得顯示於該外部終端設備的一顯示介面上，此時該用戶2得根據該情境分析資料，對至少一該情境進行其中一該角色變數20的設定。舉例來說，當該資訊系統1對該用戶2完成該情境的偵測後，向該用戶2提交該情境分析資料，而該情境分析資料包含有購物情境、音樂觀賞情境以及遊戲情境，此時該用戶2便可以針對購物情境設定該角色變數20，令購物情境與購物身分為對應。同理，該用戶2亦可分別針對音樂觀賞情境及遊戲情境進行不同該角色變數20的設定，令音樂觀賞情境與觀眾身分為對應，遊戲情境與玩家身分為對應。 復請參閱圖2A及圖2B，於本發明對該用戶2建置該些角色變數20及相應該情境的過程中，可進一步在該用戶2用以取得該服務的該外部終端設備上以一使用者介面4(User Interface)顯示建置進度，就如圖2A，建置進度得以一進度條41方式呈現。再者，該使用者介面4更可顯示一進度百分比，以透過數字清楚建置進度。除此之外，當該用戶2處於建置該些角色變數20及相應該情境的過程中，該入口伺服器11將不會令該用戶2設定於該身分帳號中的一用戶影像23或一身分名稱顯現於該使用者介面4上，僅會顯示其他非表徵該用戶2的另一圖像42，如圖2A繪示的空白圖像，當該用戶2經一定時間的等待，而將該些角色變數20與相應該情境建置完成，存於該角色資料庫111並與該用戶2的該身分帳號為關聯，該使用者介面4除透過該進度條41顯示建置完成之外，更將該用戶2設定於該身分帳號中的該用戶影像23或該角色名稱顯示於該使用者介面4中，就如圖2B。再者，本發明上述實施例僅以單一該進度條41顯示該用戶2建置該些角色變數20的建置進度，但本發明並不以此為限。請參閱圖3A至圖3B，於一實施例中，該用戶2在建置每一該角色變數的過程中，於該使用者介面4中顯示複數該進度條41，利用複數該進度條41分別表示其中一該角色變數20的建置。當該些角色變數20依序被建置時，該些進度條41將依序產生變化。舉例說明，該用戶2以該身分帳號登入該入口伺服器11後，並建置二該角色變數20，其一為下班身分的該角色變數20，另一則為上班身分的該角色變數20，當為下班身分的該角色變數20進行相應情境的建置時，對應的其中一該進度條41將顯示其建置進度，並於完成建置後，於該使用者介面4上顯示對應下班身分的該角色變數20的圖像43。此後，隨即以另一該進度條41表示為上班身分的該角色變數20進行相應情境的建置，並以非表徵該用戶2的該圖像42暫時顯示，而在為上班身分的該角色變數20建置完成後，於該使用者介面4上顯示對應上班身分的該角色變數20的圖像44，如此完成該些角色變數20的建置。承上，本發明雖僅以二該角色變數20進行實施方式的說明，但實際上並不以此為限，遂可根據當下實施作相應調整。承上，並請參閱圖4，於該用戶2完成該些角色參數20及其情境的建置後，即可實施本發明該方法，該方法可為一程式，該程式被儲存於一電腦可讀取記憶媒體中。本發明該方法包含以下步驟： 步驟(A)：基於該用戶2提供的該身分帳號，對該用戶2提供至少一該服務，並於該服務提供過程中令該用戶2處於其中一該角色變數20中； 步驟(B)：讀取該角色資料庫111與該用戶2關聯的複數該角色變數20，每一該角色變數20被設定與其中一該情境為關聯，偵測該用戶2的情境根據該情境轉換該用戶2原先的該角色變數20，而以相符該情境的該角色變數20續行該服務。 為詳細說明本發明步驟，在此遂以前面所列舉的該即時通訊軟體進行舉例說明，於實施的初始，首先進行該步驟(A)，該資訊系統1經該網際網路3與該用戶2使用的該外部終端設備連接，該資訊系統1即基於該用戶2提供的單一該身分帳號，對該用戶2提供該即時通訊服務，令該用戶2得以該即時通訊服務向其他該用戶5傳遞訊息。該資訊系統1在對該用戶2提供該即時通訊服務的同一時間，該資訊系統1連接該角色資料庫111，以該身分帳號為索引，讀取該角色資料庫111中與該身分帳號為關聯的該些角色變數20，如該些角色變數20的其中之一具有一預設使用檔，該資訊系統1即將具有該預設使用檔的該角色變數20套用於該用戶2，令該用戶2以預設的該角色變數20進行該服務。又或者，該資訊系統1在接受該用戶2經該外部終端設備發出的服務請求時，即對該外部終端設備進行該用戶2當下該情境的偵測，而根據該情境的偵測結果，轉換該用戶2原先的該角色變數20，而以相符該情境的該角色變數20續行該服務。進一步舉例說明，並請參閱圖5至圖6B該資訊系統1接受該用戶2的服務請求後，在對該用戶2提供該即時通訊服務的當下，偵測到該用戶2目前位在內湖科學園區(如圖5標示的50)，時間為上午10點，即將此作為該用戶使用因子22，並查找該角色資料庫111中是否存在具上述該用戶使用因子22的該情境，若有，即判斷該用戶2處於該情境中，於此該資訊系統1判斷該用戶2目前的該情境為上班，即讀取該情境為上班的該角色變數20，令該用戶2以該角色變數20所設定的上班身分進行該即時通訊服務。承上，倘若該資訊系統1在對該用戶2提供該即時通訊服務的過程中，發現該用戶2目前所用身分或情境是該角色資料庫111未有記錄地，該資訊系統1即可針對當下未知的身分或情境進行建置，將其新增為另一該角色變數20，以利日後使用。再者，本發明於前揭設定的過程中，以令該用戶2基於每一該角色變數20進行使用權限或其他實施限制的設定，讓該用戶2以上班身分進行該服務時，被設定為僅有該用戶2處於上班身分才可進行即時通訊的另一該用戶5(如公司管理人)，才可經該即時通訊服務與該用戶2聯繫，就如圖6A。也就是說，當該用戶2轉換於上班身分以外的該角色變數時，身為公司管理人的另一該用戶5即無法與該用戶2進行即時通訊。承上，並進入該步驟(B)，本發明該資訊系統1在對該用戶2持續提供該服務的過程中，常態對該用戶2進行定位、服務時間點等行為特徵的偵測，以確認該用戶2進行該服務的情境。如此，當該資訊系統1偵測到該用戶2離開了內湖科學園區而位於台北市某社區大樓(如圖5標示的51)，時間為晚上7點，即判斷該用戶2的該情境已產生變化，遂以此時偵測結果作為該用戶使用因子22，並讀取該角色資料庫111中與該用戶2為關聯的該些角色變數20及其情境，查找該角色資料庫111中是否存在具上述該用戶使用因子22的該情境，若有，即判斷該用戶2的該情境出現了變化，準備轉換該用戶2在該服務中的角色。此時該資訊系統1判斷該用戶2目前的該情境為下班，即自該角色資料庫111讀取該情境為下班的該角色變數20，令該用戶2以該角色變數20所設定的下班身分進行該即時通訊服務。此時，當該用戶2以下班身分進行該服務時，被設定為在下班身分中無法進行即時通訊的另一該用戶5，將無法與該用戶2進行該即時通訊，另一該用戶5於此時點對該用戶2所發出的訊息，需待至該用戶2再次轉換至上班身分或其他允許通訊的身分才可實施通訊。另一方面，該用戶2以下班身分進行該服務時，被設定為可於下班身分進行即時通訊的另一該用戶6(如朋友)，即可經該即時通訊服務與該用戶2聯繫，如圖6B。再者，本發明該步驟(B)執行過程中，得以前揭建置該些角色變數20的實施例進行該情境的偵測，故該步驟(B)可以時間、地點及行為特徵的至少其中之一者作為該情境的偵測標的。承上，本發明於此雖僅以切換二該角色情境進行舉例，但實際上該用戶於建置該些角色變數時，並不以數量二為限制，更不以上班或下班作為情境的限制。 除上述實施例之外，本發明方法於一實施例中，該步驟(A)得對該用戶提供複數互為相異的服務，並令該用戶擇一使用，而該步驟(B)則是以該用戶轉換服務作為偵測標的。於此就以前揭切換服務的實施例進行舉例說明，在說明之前，遂先假設該用戶2已利用該外部終端設備向該資訊系統1取得即時通訊的該服務，且該用戶2處於下班身分的該角色變數20之中。請參閱圖7，於實施的過程中，該用戶2得根據使用的需求，例如欲上網購買由Line公司販售的熊大(Brown)馬克杯，該用戶2可透過該即時通訊軟體內建功能連動為線上購物商城的該加值應用服務(如Line Mart)，然而在該用戶2啟動該加值應用服務的同一時間，該資訊系統1並未停止對該用戶2用以取得該服務的該外部終端設備進行該情境的偵測，而偵測到該外部終端設備準備停止該即時通訊軟體，啟動為線上購物商城的該流動應用程式。此時，該用戶2無需提供另一該身分帳號，而該資訊系統1則將此視為該服務的轉換，並將所啟用的該流動應用程式作為該用戶使用因子22，查找該角色資料庫111中是否存在具相同該用戶使用因子22的該情境，若有，即判斷該用戶2處於該情境中，該用戶2的情境由下班轉為購物，讀取與購物有關的該角色變數20套用於該用戶2上，令該用戶2在無需提供另一該身分帳號的情況下，即以購物身分進行購物。 承上所述，本發明令該用戶2轉換該角色變數20時，除實施對應該角色變數20的使用權限或其他實施限定，更轉換該用戶2的該用戶影像24為與當下使用該角色變數20為關聯的另一該用戶影像25。如圖6A、6B所示，當該用戶2處於上班身分的該角色變數20時，即以該用戶影像24表徵該用戶2，當該用戶2處於下班身分的該角色變數20時，即以另一該用戶影像25顯示。據此，即可藉由改變該用戶影像24、25的方式，讓該用戶2知道角色身分的變化。除上述實施方式之外，亦可以透過介面顏色變化或其他醒目手段提醒該用戶2角色身分已產生變化。 承上，並請參閱圖8，由前述說明可以知道，本發明令該服務伺服器12對該用戶2提供該服務的時機，是在該用戶2對該入口伺服器11所提供的該身分帳號獲得驗證時。因此，於一實施例中，本發明方法更包含一子步驟(C)：提供該入口伺服器11，令該用戶2以該身分帳號獲得該入口伺服器11的驗證取得該服務。藉此，即可透過對該身分帳號的驗證確認該用戶2是否為已註冊約定用戶或非註冊約定用戶。再者，於前揭說明解釋中，已能了解本發明實施前，對該用戶20進行了該些角色變數20的建置，據此，本發明方法於一實施例中，本發明方法更包含一子步驟(D)：利用該入口伺服器11，經該用戶2取得該服務的至少一該外部終端設備收集該用戶2於至少一該服務中的該用戶使用因子22，解析該用戶使用因子22取得至少一該情境，設定該情境與其中一該角色變數20的關聯。 再者，復請參閱圖8，前述實施例雖以自動切換的實施例進行說明，但本發明亦可根據該用戶2要求進行角色身分的切換。於一實施例中，本發明方法更包含一子步驟(E)：接受該用戶2主動提交的一轉換要求，而以該轉換要求中指定的該角色變數20取代該用戶2原先的該角色變數20。舉例來說，於一時間點，該用戶2以下班身分進行於即時通訊的該服務中，但此時該用戶2發覺身體不適無法專心工作而萌生請假之意，但在同一時間點，該資訊系統1判斷該用戶2目前不具有轉換為上班身分的該情境，將導致該用戶2無法以上班身分聯繫身為公司管理人的另一該用戶5。據此，該用戶2即可透過該即時通訊軟體所包含的一主動轉換功能，選擇已儲存於該角色資料庫111的其中一該角色變數20，如為上班身分的該角色參數20，如此一來，該用戶2即可進行身分角色的轉換而以上班身分的該角色參數20進行即時通訊，與身為公司管理人的另一該用戶5即時通訊，告知請假。 再者，本發明前述雖以明顯情境差異的實施經過進行說明，但未避免該用戶2設定有該情境近似的二該角色變數20，於一實施例中，本發明進一步於建置該些角色變數20的過程中，增加一情境關聯度設定，該情境關聯度設定可以一設定檔的形式儲存於該角色資料庫111中，並與其中一該角色變數20為關聯讀取。舉例說明，該用戶2經過該角色變數20的設定後，具有分別代表下班身分與下班父親身分的二該角色變數20，下班身分與下班父親身分的該情境皆包含了位於台北市某社區大樓以及下班時間的該用戶使用因子22，但下班父親身分的該情境進一步包含了啟動幼兒視頻的該用戶使用因子22。如此，該資訊系統1偵測該用戶2的該情境後，發現同時具有位於台北市某社區大樓及下班時間的該用戶使用因子22時，進一步判斷是否具有其他該用戶使用因子22，若無即令該資訊系統1判斷目前該情境與下班身分的該角色變數20關聯性為最高，而令該用戶2以下班身分的該角色變數20進行該服務。坦若，該資訊系統1偵測後，發現該用戶具有啟動幼兒視頻的該用戶使用因子22時，即判斷與下班父親身分的該情境完全符合，而將該用戶以下班父親身分的該角色變數20進行該服務。 復請參閱圖8，由前揭說明可知本發明該入口伺服器11具行為回饋的功能，因此，於一實施例中，本發明方法更包含一子步驟(F)：利用該入口伺服器11，經該用戶2取得該服務的至少一該外部終端設備收集該用戶2轉換該角色變數20的該用戶使用因子22，解析該用戶使用因子22取得至少一該情境，而以該情境對其中一該角色變數20進行更新。簡單來說，本發明利用該入口伺服器11的行為回饋功能，對該用戶2轉換每一該角色變數20的過程進行解析，歸類學習該用戶2轉換該角色變數20的該情境，令該入口伺服器11可更準確地根據該用戶2的該情境轉換該角色變數。 綜上所述，本發明基於用戶情境自動轉換用戶角色的方法及其資訊系統，本發明方法於實施初始，基於一用戶提供的一身分帳號，對該用戶提供至少一服務，並於該服務提供過程中令該用戶處於一角色變數中，且在持續提供服務的過程中，讀取一角色資料庫與該用戶關聯的複數角色變數，每一該角色變數被設定與一情境為關聯，偵測該用戶的情境根據該情境轉換該用戶原先的該角色變數，而以相符該情境的該角色變數續行該服務。據此，以改變習用需以不同身分帳號才可轉換用戶身分的實施方式，令用戶得以單一該身分帳號體驗服務，並根據情境自動轉換於不同的角色身分。 以上已將本發明做一詳細說明，惟以上所述者，僅爲本發明之一較佳實施例而已，當不能以此限定本發明實施之範圍，即凡依本發明申請專利範圍所作之均等變化與修飾，皆應仍屬本發明之專利涵蓋範圍內。The detailed description and technical content of the present invention will now be described as follows: Referring to FIG. 1, the present invention automatically converts a user role based on a user context, and is implemented with an information system 1, which is a service. The service provider is configured, and the service provider can be an instant messaging service provider, a community service provider, or a cloud service provider. The information system 1 includes at least one portal server 11 and at least one service server 12, and the portal server 11 and the service server 12 respectively have a networking function, so that an external terminal device is connected to the Internet 3 The portal server 11 can be designed based on an authentication authorization and accounting server (also known as AAA server) architecture. In an embodiment, the portal server 11 is programmed to have a behavior feedback function. Furthermore, the portal server 11 has a role database 111 built in or externally connected thereto, and the role database 111 is directly connected with the portal server 11 to receive the data sent by the portal server 11 to the role database 111. Read request or data write request. The role database 111 can be designed by an associated database architecture or other database architecture. The related relational database architecture can be MySQL, Microsoft Access, and the like. On the other hand, the service server 12 is operated by loading at least one program software to provide a service to the external terminal device (i.e., user) via the Internet 3. For example, the service server 12 may provide an instant messaging service, a streaming video service, an e-commerce service, an information push service, or a User Generated Content (UGC) service according to the program software. Wait. However, the present invention merely exemplifies that each of the services is provided by only one of the service servers 12, but is not limited thereto. In an embodiment, when the service server 12 provides a service to the external terminal device, the external terminal device is verified at the portal server 11, and after the external terminal device obtains the verification, the portal server is authenticated. 11 when the service server 12 is required to provide the service to the external terminal device, that is, the service server 12 obtains the verification of the portal server 11 by the user, and is requested by the portal server 11 to a user 2 Provide this service. Furthermore, the present invention is specifically described herein, and the entry server 11 is distinguished from the service server 12, but in practice, the portal server 11 and the service server 12 are built in the same manner. On top of the terminal servo device, it is built on different terminal servo devices. In conclusion, the external terminal device can be owned by the user 2, and the user 2 has signed a service agreement with the service provider that is ready to obtain the service before the implementation of the present invention. The external terminal device has a networking function and can connect to the information system 1 via the Internet 3. Moreover, the external terminal device may be referred to as a mobile communication device, a desktop computer or other electronic device with networking functions. Before the method of the present invention is implemented, a plurality of role variables 20 are first created for the user 2 and stored in the character database 111. The role variables 20 are set to be associated with the user 2, and the role variables 20 are further The user account registered by the user 2 to the service provider may be used as an index for reading data. Moreover, the present invention further makes each of the character variables 20 correspond to one of the contexts, and the so-called context may be composed of one or more user usage factors 22, wherein the user usage factor 22 of the present invention determines that the user 2 is located. An important indicator of the situation, the user usage factor 22 is recorded in each of the role variables 20 and is set as a condition, so that the portal server 11 can understand the current situation of the user 2 according to at least one user usage factor 22. Make the appropriate switch. Moreover, the user usage factor 22 is the time, location, idiomatic behavior characteristics, special behavior characteristics, or handover service request of the user 2 in the service. For example, the user usage factor 22 may be composed of a single factor or a composite factor, wherein the time or place of the user 2 in the service is the user usage factor 22 composed of a single factor, only The time or place is met, that is, the user usage factor 22 is obtained and the current situation can be further inferred. Additionally, the location may be obtained by a satellite positioning signal. Furthermore, the aforementioned behavioral characteristics of the user 2 in the service may be composed of a plurality of factors. In an embodiment, the idiomatic behavior feature is composed of time and place factors, when the user 2 is in the service. Simultaneously satisfying the above factors will result in the user using factor 22 as a characteristic of the usual behavior. Moreover, the identification of the customary behavior feature may be the usage state of the user 2 during a data collection time, for a long time or a high probability, for example, the user 2 may be located at the company from 8 am to 5 pm daily. This is a custom behavioral feature. On the other hand, the so-called special behavioral characteristics refer to the user's 2 special use factors, such as participation in anonymous communities, special preferences, or special professions outside the profession. Moreover, the character variables 20 of the present invention are respectively stored in the character database 111 in the form of an information file. In more detail, the present invention utilizes Big Data technology to collect the user usage factor 22 of the user 2 in at least one of the services to identify at least two contexts of the user 2 in performing the service. Moreover, the present invention is exemplified by the operation of an instant messaging software (such as the Line communication software), but is not limited thereto. When the user 2 first runs the instant messaging software and wants to register the identity account with the service provider, the instant messaging software provides the user 2 with the necessary identity information, and provides the user 2 with autonomous definition. The at least one role context compiling option enables the user 2 to customize the role used in the specific context for the self-requirement, and the custom content may be the character's identity with the context in which the character is launched, and the context is as described above. The time of use, the location of the role, the limited use conditions of the role, and so on. The instant messaging software returns the content entered by the user 2 for the role context editing option to the portal server 11 after the customization of the user 2 is completed, and the portal server 11 sets the received content. One of the role variables 20 associated with the user 2 is. In addition, the instant messaging software can be programmed by the program to have a role context editing setting, so that the user 2 can customize the character to be converted and its situation at any time according to the usage requirements. In addition to the foregoing implementation of providing the user 2 custom role context, the present invention may further be used in the process of the user 2 experiencing the service or in the current user 2 to register with the service provider to obtain the identity account. The user 2 is configured to collect data of at least one of the external terminal devices connected to the information system 1 to obtain usage habits and usage records of the user 2, and perform at least one setting of the role variable 20 with the collected data. . For example, the present invention utilizes the portal server 11 to record the point in time at which the user 2 requests service or exits the service, with the point in time as the contextual basis for setting the role variable 20. Alternatively, the external terminal device used by the user 2 to obtain the service performs location detection, and the location information detected by the location is used as a context basis for setting the role variable 20. Further exemplifying, when the result of the location detection, it is shown that the user 2 part of the day will be located in the Neihu Science Park and a community building in Taipei City, where the Neihu Science Park belongs to the office area, and a community building in Taipei belongs to the residence. The area, that is, the above two positions are regarded as different user usage factors 22 and are respectively defined as belonging to different situations, and are associated with one of the role variables 20, for example, the location is the situation of the Neihu Science Park, and is set to work. The role variable is 20, and the location is the situation of a community building in Taipei City, and the role variable 20 is set as the off-duty identity. In addition, the present invention can also set the role variable 20 by the user using the factor 22, and the user 2 will be located in the Neihu Science Park from 9:00 am to 5:00 pm, and most of the time will be located in Taipei City. In a community building, the user 2 is located in the Neihu Science Park during the working hours, and the Neihu Science Park is also an office area, so the above-mentioned user usage factor 22 can be classified into the same role variable 20, and Let the character variable 20 be defined as the identity of the work. The user 2 is located in a community building in Taipei City, and the community building in Taipei belongs to the residential area. Therefore, the user usage factor 22 can be classified into the same role variable 20, and the role is Variable 20 is defined as the identity of the shift. Furthermore, the location information of the location service can be obtained by a map service provider (such as Google Map), and will not be described here. In addition to the above scenario definition scheme, the habit of browsing the webpage by the user 2 may be used as the basis of the context definition. Further, the portal server 11 may perform the network for the external terminal device used by the user 2 to obtain the service. The collection of browsing history data (such as web history data, small text files (Cookies)), thereby analyzing that the user 2 is accustomed to visiting a specific webpage for browsing at a specific time, for example, the user 2 often connects to a shopping at 8:00 in the evening. The web page can be considered as the user usage factor 22 and defined as a shopping context, and associated with the role variable 20 of the shopping identity. Furthermore, although the present invention is exemplified by the shopping example only, it is not limited thereto, and the context may be collected for a social webpage, a news webpage or a user original webpage. In addition, the present invention can also be used as a basis for the context selected by the user 2 for the external terminal device. For example, when the user 2 selects the service as a video stream, the user can be regarded as one of them. This context is associated with the character variable 20 that is the identity of the viewer. If the user 2 selects the service as a game on the external terminal device, it can be regarded as another context and associated with the character variable 20 of the player identity. In an embodiment, the instant messaging software disclosed in the present invention may be linked to at least one value-added application service through a software update or an original built-in software issued by the instant messaging service provider, that is, The user 2 may directly activate the value-added application service by operating the instant messaging software, and the value-added application service may be referred to as a third-party payment, streaming video, e-commerce or game. In this embodiment, the information system 1 can investigate, by the external terminal device, the time point of the user 2 to start one of the value-added application services by the instant messaging software and one of the enabled value-added application services, and The survey results are considered to be defined by the user as one of the contexts using factor 22. Furthermore, the present invention is also referred to as a mobile application (Mobile Application, APP) for loading the external terminal device. The present invention is also capable of performing image analysis and the like. The user 2 is parsed to request the information system 1 to obtain the current usage environment of the service, and after the parsing, the result is defined as a specific or one of the roles variable 20. For example, the present invention can enable the camera module to capture the current usage environment of the user 2 through the camera module of the external terminal device that enables the user 2 to obtain the service, and then load the external terminal through the external terminal. The image recognition software of the device analyzes the current use environment, or causes the camera module to generate an image to be recognized after capturing the current use environment, and returns the information system 1 to the information system 1 for the image information to be recognized. Perform image recognition. Thereafter, the information recognition system is used to classify or detect the image recognition result, and the image recognition result is regarded as one of the user use factors 22 and is defined as one of the contexts. Furthermore, in an embodiment of the present invention, after the information system 1 performs the detection of the situation by the user 2 for connecting to at least one of the external terminal devices connected thereto, the information system 1 transmits a plurality of The situation analysis data of the situation, the situation analysis data is displayed on a display interface of the external terminal device, and the user 2 may perform setting of one of the role variables 20 for at least one of the contexts according to the situation analysis data. . For example, when the information system 1 completes the detection of the situation by the user 2, the situation analysis data is submitted to the user 2, and the situation analysis data includes a shopping situation, a music viewing situation, and a game situation. The user 2 can set the role variable 20 for the shopping situation, so that the shopping situation corresponds to the shopping identity. Similarly, the user 2 can also perform different setting of the character variable 20 for the music viewing situation and the game context, so that the music viewing situation corresponds to the audience identity, and the game context corresponds to the player identity. Referring to FIG. 2A and FIG. 2B, in the process of constructing the role variables 20 and corresponding situations in the user 2, the user 2 may further use the external terminal device used by the user 2 to obtain the service. The user interface 4 displays the progress of the construction. As shown in FIG. 2A, the progress of the construction can be presented in a progress bar 41 manner. Furthermore, the user interface 4 can display a progress percentage to clearly show the progress through the numbers. In addition, when the user 2 is in the process of establishing the role variables 20 and corresponding situations, the portal server 11 will not set the user 2 to a user image 23 or one in the identity account. The identity name appears on the user interface 4, and only another image 42 that does not represent the user 2 is displayed, as shown in FIG. 2A, when the user 2 waits for a certain time, The role variables 20 and the corresponding contexts are completed and stored in the role database 111 and associated with the identity account of the user 2. The user interface 4 is displayed by the progress bar 41. The user image 23 or the character name of the user 2 set in the identity account is displayed in the user interface 4 as shown in FIG. 2B. Furthermore, the above embodiment of the present invention only shows the progress of the establishment of the role variables 20 by the user 2 by a single progress bar 41, but the invention is not limited thereto. Referring to FIG. 3A to FIG. 3B, in an embodiment, the user 2 displays a plurality of the progress bar 41 in the user interface 4 during the process of establishing each of the character variables, and the plurality of the progress bars 41 respectively Represents the establishment of one of the role variables 20. When the role variables 20 are sequentially constructed, the progress bars 41 will change sequentially. For example, the user 2 logs in to the portal server 11 with the identity account, and establishes the role variable 20, one of which is the role variable 20 of the off-duty identity, and the other is the role variable 20 of the working identity. When the corresponding situation is established for the role variable 20 of the off-duty identity, one of the corresponding progress bars 41 will display its construction progress, and after the completion of the construction, the corresponding user identity is displayed on the user interface 4. The image 43 of the character variable 20. Thereafter, the role of the character 20, which is represented by another progress bar 41, is used to perform the corresponding situation, and is temporarily displayed by the image 42 not representing the user 2, and the character variable for the identity of the work. After the completion of the construction, the image 44 of the character variable 20 corresponding to the working identity is displayed on the user interface 4, thus completing the establishment of the character variables 20. Although the present invention has been described with respect to the embodiment only by the role variable 20, it is not limited thereto, and may be adjusted accordingly according to the current implementation. The method of the present invention can be implemented after the user 2 completes the configuration of the role parameters 20 and the context thereof. The method can be a program, and the program can be stored in a computer. Read in memory media. The method of the present invention comprises the following steps: Step (A): providing at least one service to the user 2 based on the identity account provided by the user 2, and causing the user 2 to be in one of the role variables during the service providing process 20: Step (B): reading the role database 20 associated with the user 2 with the plurality of role variables 20, each of the role variables 20 being set to be associated with one of the contexts, detecting the context of the user 2 The role 2 of the user 2 is converted according to the context, and the service is continued with the role variable 20 that matches the situation. In order to explain the steps of the present invention in detail, the instant messaging software listed above is exemplified. In the initial implementation, the step (A) is first performed, and the information system 1 passes through the Internet 3 and the user 2 The external terminal device is connected, and the information system 1 provides the instant messaging service to the user 2 based on the single identity account provided by the user 2, so that the user 2 can send the message to the other user 5 by the instant messaging service. . The information system 1 connects to the role database 111 at the same time that the user 2 provides the instant messaging service, and the identity account is indexed, and the role database 111 is associated with the identity account. The role variable 20, if one of the character variables 20 has a preset usage file, the information system 1 will apply the role variable 20 of the preset usage file to the user 2, and make the user 2 The service is performed with the preset role variable 20. Or, the information system 1 performs the service request sent by the user 2 via the external terminal device, that is, the external terminal device performs the detection of the current situation of the user 2, and converts according to the detection result of the situation. The user 2 has the original character variable 20, and the service is continued with the role variable 20 that matches the situation. For further example, and referring to FIG. 5 to FIG. 6B, after the information system 1 accepts the service request of the user 2, when the user 2 provides the instant messaging service, the user 2 is detected at the current lake science. The campus (as shown in Figure 5), at 10 am, is used as the user usage factor 22, and finds whether the context with the user usage factor 22 exists in the role database 111, if any, Determining that the user 2 is in the situation, the information system 1 determines that the current situation of the user 2 is working, that is, reading the role variable 20 of the situation to work, and setting the user 2 with the role variable 20 The identity of the job is to carry out the instant messaging service. In the event that the information system 1 finds that the identity or context currently used by the user 2 is not recorded in the role of the user 2 in providing the instant messaging service, the information system 1 can be targeted for the present. Unknown identity or situation is built and added to another role variable of 20 for future use. Furthermore, in the process of the present invention, in the process of setting the user 2 to use the permission or other implementation restrictions based on each of the role variables 20, the user 2 is set to Only the other user 5 (such as a company administrator) who can perform instant messaging when the user 2 is in work can contact the user 2 via the instant messaging service, as shown in FIG. 6A. That is to say, when the user 2 switches to the role variable other than the work status, the other user 5 who is the company manager cannot immediately communicate with the user 2. In the process of carrying out the step (B), the information system 1 of the present invention normally detects the behavior characteristics of the user 2, such as positioning and service time, in the process of continuously providing the service to the user 2, to confirm The user 2 performs the context of the service. In this way, when the information system 1 detects that the user 2 has left the Neihu Science Park and is located in a community building in Taipei City (51 as shown in FIG. 5), the time is 7:00, that is, the situation of the user 2 has been determined. A change is generated, and the detection result is used as the user usage factor 22, and the role variables 20 and their contexts associated with the user 2 in the role database 111 are read, and whether the role database 111 is found in the role database 111 is read. There is a situation with the user usage factor 22 described above, and if so, it is determined that the context of the user 2 has changed, ready to convert the role of the user 2 in the service. At this time, the information system 1 determines that the current situation of the user 2 is off work, that is, reads the role variable 20 from the role database 111 as the off work, and causes the user 2 to set off the work time set by the role variable 20. Conduct the instant messaging service. At this time, when the user 2 performs the service in the following shift, the other user 5 who is set to be unable to perform instant messaging in the off-duty identity will not be able to perform the instant communication with the user 2, and the other user 5 At this point, the message sent to the user 2 needs to wait until the user 2 switches to the identity of the work or other communication permission to implement the communication. On the other hand, when the user 2 performs the service in the following class, the other user 6 (such as a friend) who is set to perform instant messaging in the off-hours identity can contact the user 2 via the instant messaging service, such as Figure 6B. Furthermore, in the execution of the step (B) of the present invention, the embodiment of the role variable 20 is previously disclosed to detect the situation, so the step (B) can be at least one of time, place and behavior characteristics. One of them is the subject of detection of the situation. In the above, the present invention is merely exemplified by switching the role context, but in fact, when the user constructs the role variables, the user does not limit by the number two, and does not use the work or the work as the situation limit. . In addition to the above embodiments, the method of the present invention in an embodiment, the step (A) is to provide the user with a plurality of mutually different services, and the user is selected to use, and the step (B) is The user conversion service is used as the detection target. Hereinbefore, the embodiment of the previously disclosed handover service is exemplified. Before the description, it is assumed that the user 2 has obtained the instant messaging service from the information system 1 by using the external terminal device, and the user 2 is in the off-duty. The role variable is 20. Referring to FIG. 7, during the implementation process, the user 2 may, according to the usage requirements, for example, to purchase the Brown flag sold by the Line Company, and the user 2 can use the instant messaging software built-in function. Linking the value-added application service (such as Line Mart) of the online shopping mall, but at the same time that the user 2 starts the value-added application service, the information system 1 does not stop the user 2 to obtain the service. The external terminal device detects the situation, and detects that the external terminal device is ready to stop the instant messaging software, and starts the mobile application of the online shopping mall. At this time, the user 2 does not need to provide another identity account, and the information system 1 regards this as a conversion of the service, and uses the enabled mobile application as the user usage factor 22 to find the role database. Is there a situation in the 111 having the same user usage factor 22, and if so, determining that the user 2 is in the context, the context of the user 2 is changed from off-duty to shopping, and the role variable 20 related to shopping is read. On the user 2, the user 2 is allowed to make a purchase in the case of no need to provide another identity account. As described above, when the user 2 converts the role variable 20, in addition to implementing the usage authority or other implementation limitation of the corresponding role variable 20, the user image 24 of the user 2 is further converted to use the role variable with the current role. 20 is another associated user image 25 associated with it. As shown in FIG. 6A and FIG. 6B, when the user 2 is in the role variable 20 of the working identity, the user 2 is represented by the user image 24, and when the user 2 is in the role variable 20 of the off-duty identity, A user image 25 is displayed. Accordingly, the user 2 can be made aware of the change in the character's identity by changing the user images 24, 25. In addition to the above embodiments, it is also possible to remind the user 2 that the character's identity has changed through the interface color change or other conspicuous means. With reference to FIG. 8, it can be seen from the foregoing description that the timing of the service server 12 providing the service to the user 2 is the identity account provided by the user 2 to the portal server 11. When getting verification. Therefore, in an embodiment, the method of the present invention further comprises a sub-step (C) of providing the portal server 11 to enable the user 2 to obtain the verification of the portal server 11 by the identity account to obtain the service. Thereby, it can be confirmed by the verification of the identity account that the user 2 is a registered appointment user or a non-registered appointment user. Furthermore, in the foregoing explanation, it has been understood that the user 20 has been constructed for the user 20 before the implementation of the present invention. Accordingly, in one embodiment, the method of the present invention further includes a sub-step (D): using the portal server 11, at least one external terminal device that obtains the service via the user 2 collects the user usage factor 22 of the user 2 in at least one of the services, and parses the user usage factor 22 Acquiring at least one of the contexts, setting an association of the context with one of the role variables 20. Furthermore, referring to FIG. 8, although the foregoing embodiment is described with an embodiment of automatic switching, the present invention can also perform the switching of the character identity according to the request of the user 2. In an embodiment, the method of the present invention further comprises a sub-step (E) of accepting a conversion request submitted by the user 2 and replacing the original role variable of the user 2 with the role variable 20 specified in the conversion request. 20. For example, at a point in time, the user 2 is in the service of instant messaging, but at this time, the user 2 finds that he is not able to concentrate on his work and initiates a leave of absence, but at the same time, the information The system 1 judges that the user 2 does not currently have the situation of being converted to work status, and will cause the user 2 to be unable to contact another user 5 who is a company administrator. According to this, the user 2 can select one of the role variables 20 already stored in the character database 111 through an active conversion function included in the instant messaging software, such as the role parameter 20 for the working identity, such that In this case, the user 2 can perform the conversion of the identity role, and the role parameter 20 of the above-mentioned class identity performs instant communication, and instant communication with another user 5 who is the company manager informs the leave. Furthermore, although the foregoing description of the present invention has been carried out with obvious differences in context, the user 2 is not prevented from setting the role variable 20 of the context approximation. In an embodiment, the present invention further constructs the roles. In the process of the variable 20, a context association setting is added, and the context correlation setting can be stored in the role database 111 in the form of a profile and read in association with one of the role variables 20. For example, after the setting of the role variable 20, the user 2 has two role variables 20 representing the identity of the off-duty and the father of the work, and the situation of the off-duty and the father-in-law includes the community building in Taipei City and The user at off-hours uses a factor of 22, but the context of the off-duty father's identity further includes the user usage factor 22 that initiates the toddler video. In this way, after detecting the situation of the user 2, the information system 1 finds that the user uses the factor 22 at a community building in Taipei City and the off-duty time, and further determines whether there are other user usage factors 22, if not, The information system 1 judges that the relationship between the situation and the off-duty identity is currently the highest, and the role variable 20 of the user 2 is assigned to perform the service. Tan Ruo, after the information system 1 detects, the user has found that the user has a factor of 22 for starting the child video, that is, the situation is completely consistent with the situation of the father of the off-duty, and the character of the user who is the father of the next class is changed. 20 to carry out the service. Referring to FIG. 8, it can be seen from the foregoing that the portal server 11 of the present invention has a function of behavior feedback. Therefore, in an embodiment, the method of the present invention further includes a sub-step (F): using the portal server 11 At least one external terminal device that obtains the service by the user 2 collects the user usage factor 22 that the user 2 converts the role variable 20, and parses the user usage factor 22 to obtain at least one of the contexts, and one of the scenarios is used. This role variable 20 is updated. Briefly, the present invention utilizes the behavior feedback function of the portal server 11 to parse the process of converting each of the role variables 20 by the user 2, categorizing the situation in which the user 2 converts the role variable 20, and The portal server 11 can more accurately convert the role variable according to the context of the user 2. In summary, the present invention provides a method for automatically converting a user role based on a user context and an information system thereof. The method of the present invention provides at least one service to the user based on an identity account provided by a user, and provides the service. In the process, the user is in a role variable, and in the process of continuously providing the service, reading a role database and a plurality of role variables associated with the user, each of the role variables is set to be associated with a context, and detecting The user's context converts the user's original role variable based on the context, and continues the service with the role variable that matches the situation. According to this, in order to change the usage of the user account to change the user identity, the user can experience the service in a single account, and automatically convert to different roles according to the situation. The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Variations and modifications are still within the scope of the patents of the present invention.