整合家用資訊與服務系統之設計及實作

Abstract

在本論文中，我們設計了一個整合家用資訊與服務（iHIS）系統。本系統包含下列主要元件:家用資訊伺服器、MBL閘道器和CC/PP儲存器。這個系統允許我們在各種網路環境和不同的用戶端裝置下存取一個非整合式的家用資訊與服務，並且可以很容易地控制在家中的各種資訊家電。我們的系統使用Java，採用一種簡單的CC/PP協定，使其能有效率地交換裝置設定檔。此外，這個系統有兩個關鍵的子元件：（1）個人化管理器，它是一個可以針對使用者所要存取的服務產生個人化資訊和易於管理這些服務的工具。（2）內容轉換器，它根據使用者喜好和裝置性能轉換XML文件內容為適性化的型態。內容轉換器也產生一份中間樣板文件，此中間樣板文件能夠解決樣板文件不具彈性的問題，並且所產生的網頁更能適應不同的網路頻寬和裝置性能。 我們的系統實現能夠透過各種網路界限和不同用戶端裝置去存取一個可適性化和個人化家用服務環境的概念。與本系統相比較，現有的系統有一些問題，如版面編排和內容之間沒有分離、缺乏支援動態內容的產生及不受裝置類型的限制。我們的系統有幾個特點：能夠產生中間樣板文件，這對透過各種網路和不同的裝置所存取的網頁更具彈性和適應性；減少網頁存取的時間和增加系統的效能和對於每一位使用者提供個人化內容。我們實作了本系統，它可以在不同網路頻寬下，改編家用服務內容來適應具有使用者設定檔的行動用戶手持裝置。評估結果顯示，我們的系統能夠提供適於各種網路頻寬和用戶端裝置特性的適性化及個人化家用資訊與服務。

In this thesis, we present an integrated Home Information and Service (iHIS) system. The iHIS system consists of the following components: Home Information Server, MBL Gateway, and CC/PP Repository. The system allows us to flexibly access non-integrated home information and services, and to easily control various Information Appliances (IA) at home under various network environments and different client devices. Our system uses a Simple CC/PP protocol with Java to exchange device profiles efficiently. And this system has two key sub-components: (1) Personalization Manager, which is a tool used by users to personalize the services that the users want to access and to manage the services easily and (2) Content Transformer, which transforms an XML document content to an adaptive form, according to user preferences and device capabilities. The Content Transformer also generates intermediate stylesheets. The intermediate stylesheets can resolve the problem of page layout inflexibility. The generated pages will be more adaptive to network bandwidth and device capabilities. Our design accomplishes the concept of an adaptive and personalized home service environment that can be accessed across various network boundaries and different client devices. Compared to our system, existing systems have some problems, such as no separation between layouts and contents, and lack of support for dynamic contents generation and device independence. There are several features in our system: generating intermediate stylesheets, which make the generated pages more flexible and adaptive to various networks and different devices, decreasing access time and increasing system performance, and creating personalized contents for each user. We have implemented our system, which can adapt home service contents to various client devices with user agent profiles under different network environments. Evaluation shows that our system can provide adaptive, personalized home information and services to match network bandwidth and device capabilities.