Updated ch1.md: Refined translation of 'interfaces (#347)

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@ -78,7 +78,7 @@ Moreover, this chapter will provide you with terminology that we will need for t
我们在本书中将讨论的许多内容涉及*后端开发*。解释该术语:对于网络应用程序,客户端代码(在网页浏览器中运行)被称为*前端*,处理用户请求的服务器端代码被称为*后端*。移动应用与前端类似,它们提供用户界面,通常通过互联网与服务器端后端通信。前端有时会在用户设备上本地管理数据[[2](ch01.html#Kleppmann2019)],但最大的数据基础设施挑战通常存在于后端:前端只需要处理一个用户的数据,而后端则代表*所有*用户管理数据。 我们在本书中将讨论的许多内容涉及*后端开发*。解释该术语:对于网络应用程序,客户端代码(在网页浏览器中运行)被称为*前端*,处理用户请求的服务器端代码被称为*后端*。移动应用与前端类似,它们提供用户界面,通常通过互联网与服务器端后端通信。前端有时会在用户设备上本地管理数据[[2](ch01.html#Kleppmann2019)],但最大的数据基础设施挑战通常存在于后端:前端只需要处理一个用户的数据,而后端则代表*所有*用户管理数据。
后端服务通常可以通过 HTTP 访问;它通常包含一些应用程序代码,这些代码在一个或多个数据库中读写数据,有时还会与额外的数据系统(如缓存或消息队列)接口(我们可能统称为*数据基础设施*)。应用程序代码通常是*无状态的*(即,当它完成处理一个 HTTP 请求后,它会忘记该请求的所有信息),并且任何需要从一个请求传递到另一个请求的信息都需要存储在客户端或服务器端的数据基础设施中。 后端服务通常可以通过 HTTP 访问;它通常包含一些应用程序代码,这些代码在一个或多个数据库中读写数据,有时还会与额外的数据系统(如缓存或消息队列)交互(我们可能统称为*数据基础设施*)。应用程序代码通常是*无状态的*(即,当它完成处理一个 HTTP 请求后,它会忘记该请求的所有信息),并且任何需要从一个请求传递到另一个请求的信息都需要存储在客户端或服务器端的数据基础设施中。
Much of what we will discuss in this book relates to *backend development*. To explain that term: for web applications, the client-side code (which runs in a web browser) is called the *frontend*, and the server-side code that handles user requests is known as the *backend*. Mobile apps are similar to frontends in that they provide user interfaces, which often communicate over the Internet with a server-side backend. Frontends sometimes manage data locally on the users device [[2](ch01.html#Kleppmann2019)], but the greatest data infrastructure challenges often lie in the backend: a frontend only needs to handle one users data, whereas the backend manages data on behalf of *all* of the users. Much of what we will discuss in this book relates to *backend development*. To explain that term: for web applications, the client-side code (which runs in a web browser) is called the *frontend*, and the server-side code that handles user requests is known as the *backend*. Mobile apps are similar to frontends in that they provide user interfaces, which often communicate over the Internet with a server-side backend. Frontends sometimes manage data locally on the users device [[2](ch01.html#Kleppmann2019)], but the greatest data infrastructure challenges often lie in the backend: a frontend only needs to handle one users data, whereas the backend manages data on behalf of *all* of the users.

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@ -78,7 +78,7 @@ Moreover, this chapter will provide you with terminology that we will need for t
我們在本書中將討論的許多內容涉及*後端開發*。解釋該術語:對於網路應用程式,客戶端程式碼(在網頁瀏覽器中執行)被稱為*前端*,處理使用者請求的伺服器端程式碼被稱為*後端*。移動應用與前端類似,它們提供使用者介面,通常透過網際網路與伺服器端後端通訊。前端有時會在使用者裝置上本地管理資料[[2](https://learning.oreilly.com/library/view/designing-data-intensive-applications/9781098119058/ch01.html#Kleppmann2019)],但最大的資料基礎設施挑戰通常存在於後端:前端只需要處理一個使用者的資料,而後端則代表*所有*使用者管理資料。 我們在本書中將討論的許多內容涉及*後端開發*。解釋該術語:對於網路應用程式,客戶端程式碼(在網頁瀏覽器中執行)被稱為*前端*,處理使用者請求的伺服器端程式碼被稱為*後端*。移動應用與前端類似,它們提供使用者介面,通常透過網際網路與伺服器端後端通訊。前端有時會在使用者裝置上本地管理資料[[2](https://learning.oreilly.com/library/view/designing-data-intensive-applications/9781098119058/ch01.html#Kleppmann2019)],但最大的資料基礎設施挑戰通常存在於後端:前端只需要處理一個使用者的資料,而後端則代表*所有*使用者管理資料。
後端服務通常可以透過 HTTP 訪問;它通常包含一些應用程式程式碼,這些程式碼在一個或多個數據庫中讀寫資料,有時還會與額外的資料系統(如快取或訊息佇列)介面(我們可能統稱為*資料基礎設施*)。應用程式程式碼通常是*無狀態的*(即,當它完成處理一個 HTTP 請求後,它會忘記該請求的所有資訊),並且任何需要從一個請求傳遞到另一個請求的資訊都需要儲存在客戶端或伺服器端的資料基礎設施中。 後端服務通常可以透過 HTTP 訪問;它通常包含一些應用程式程式碼,這些程式碼在一個或多個數據庫中讀寫資料,有時還會與額外的資料系統(如快取或訊息佇列)交互(我們可能統稱為*資料基礎設施*)。應用程式程式碼通常是*無狀態的*(即,當它完成處理一個 HTTP 請求後,它會忘記該請求的所有資訊),並且任何需要從一個請求傳遞到另一個請求的資訊都需要儲存在客戶端或伺服器端的資料基礎設施中。
Much of what we will discuss in this book relates to *backend development*. To explain that term: for web applications, the client-side code (which runs in a web browser) is called the *frontend*, and the server-side code that handles user requests is known as the *backend*. Mobile apps are similar to frontends in that they provide user interfaces, which often communicate over the Internet with a server-side backend. Frontends sometimes manage data locally on the users device [[2](https://learning.oreilly.com/library/view/designing-data-intensive-applications/9781098119058/ch01.html#Kleppmann2019)], but the greatest data infrastructure challenges often lie in the backend: a frontend only needs to handle one users data, whereas the backend manages data on behalf of *all* of the users. Much of what we will discuss in this book relates to *backend development*. To explain that term: for web applications, the client-side code (which runs in a web browser) is called the *frontend*, and the server-side code that handles user requests is known as the *backend*. Mobile apps are similar to frontends in that they provide user interfaces, which often communicate over the Internet with a server-side backend. Frontends sometimes manage data locally on the users device [[2](https://learning.oreilly.com/library/view/designing-data-intensive-applications/9781098119058/ch01.html#Kleppmann2019)], but the greatest data infrastructure challenges often lie in the backend: a frontend only needs to handle one users data, whereas the backend manages data on behalf of *all* of the users.