XML (eXtensible Markup Language)是今日新興在網路上所使用的延伸性的標記語言。它具有豐富的語意表達及與展現方式獨立的資料獨立性。由於這些特性，使得XML成為新的資料交換標準並且其應用在資料庫中產生了許多新的研究議題在資料儲存和查詢處理上。在本篇研究中，將研究XML資料庫中的績效評估的議題並且發展一個可適用於不同應用領域及各種平台上的使用者導向且開放型工作量模式以評估XML資料庫績效。此XML開放型的工作量模型包含三個子模型─XML資料模型、查詢模型以及控制模型。XML資料模型將模式化XML文件中階層式的結構概念；查詢模型包含了一連串查詢模組以供測試XML資料庫的處理查詢能力以及一個開放型的查詢輸入介面以供使用者依照需求設定所需的測試查詢；控制模型中定義了一連串變數以供設定績效評估系統中的執行環境。我們發展此系統化且具開放型的工作量方法可以幫助各種不同應用領域的使用者預測及展現XML資料庫系統的績效。 / XML (eXtensible Markup Language) is the emerging data format for data processing on the Internet. XML provides a rich data semantics and data independence from the presentation. Thanks to these features, XML becomes a new data exchange standard and leads new storage and query processing issues on database research communities. In this paper, the performance evaluation issues on XML databases have been studied and a generic and requirement-driven XML workload model that is applicable to any application scenario or movable on various platforms is developed. There are three sub-models in this generic workload model, the XML data model, the query model, and the control model. The XML data model formulates the generic hierarchy structure of XML documents and supports a flexible document structure of the test database. The XML query model contains a flexible classical query module selector and an open query input to define the requirement-driven test query model to challenge the XML query processing ability of the XML database. The control model defines variables that are used to set up the implementation of a benchmark. This open, flexible, and systematic workload method permits users in various application domains to predicate or profile the performance of the XML database systems.

隨著網際網路和企業內部網路的盛行，異質資訊整合成為電子化企業中一個重要的議題，在網路上進行異質資訊整合涉及許多不同新的資訊技術，目前已經有些研究試圖利用延伸標記語言以及本體論當作中介技術來整合異質資訊，為了有效管理企業內的資訊，我們需要一個績效評估模型來衡量異質資訊整合的效能。在本研究中，我們提出了一個在異質資訊整合中運用延伸標記語言及本體論的績效評估工作量模型，並且建立了一個工作量產生器雛形；本研究的目標是希望發展出一個結合延伸標記語言及本體論的工作量模型，以測試在電子化企業中的異質資訊整合是否能整合不同的資訊模型，並且從這些資訊模型中衍生出語意，此工作量模型包含了延伸標記語言與本體論的資料模型與查詢模型，它們是依照延伸標記語言與本體論學名式的資料結構與查詢功能所制訂的，此外，控制模型則定義了績效評估執行環境中所需設定的變數，為了讓此工作量模型能具可攜性和延展性，以便輕易地應用在不同的領域情境中，本研究採取學名結構式且使用者定義、領域獨立的設計方法，最後，我們利用雛形實作來驗證本研究所提出的研究方法。 / With the popularity of Internet/Intranet, heterogeneous information integration becomes a hot IT topic in electronic business (EB) field. Heterogeneous information integration on the Web involves a number of new techniques. There have been research projects applying XML and ontology as mediated techniques to consolidate heterogeneous information. In order to manage and use information more effectively within the enterprise, a benchmark used to evaluate the mechanism of heterogeneous information integration is needed. In this research, we develop a XML and ontology benchmark workload model in heterogeneous information integration, and build a workload generation prototype. The objective of this research is to develop a workload model combines XML and ontology to test whether the heterogeneous information integration system under EB environment can overcome the diverse formats of content and derive meaning from this content. The workload model consists of XML and ontology data model and query model according to the generic data structure and query functionality. Also, a control model is created to set up the benchmark environment. In order to apply the workload model to different scenarios easier, this workload model is designed to be domain independent and generic-construct-based. Finally, we validate the research model through the prototype implementation.

網際網路超媒體資訊系統讓使用者能透過各種媒體共享資訊。每個超媒體資訊系統都擁有其後端資料庫。超媒體資料庫是用來儲存各種形式的資料。在近幾年來，超媒體資料庫有愈來愈多的趨勢。但我們無法知道哪種超媒體資料庫的績效較佳。績效評估是個重要的工具，它可以用來衡量和評估超媒體資料庫的效能。現今有許多績效評估的工作量模型可用來測試一般的資料庫，但卻沒有適合用來測試超媒體資料庫的工作量模型。在這情況下，我們發展了更一般化、由四個元件組成的工作量模型，用來作超媒體資料庫的績效評估。這四個元件分別為物件模型(Object Model)、應用模型(Application Model)、導覽模型(Navigation Model)及控制模型(Control Model)。每一個元件是用來建立每一面向的超媒體資料庫工作量需求。之後，我們建立此工作量模型的系統雛形，以證明此超媒體工作量模型是可行的。發展此正規且系統化的工作量方法可以幫助使用者預測及表示超媒體資料庫系統的績效。最後我們討論並解釋我們的工作量模型及和其它物件導向資料庫績效評估的關係。 / Web-based Hypermedia information systems (WHIS) enable users to share the information through a variety of media. Every Hypermedia information system has its own backend databases. The Hypermedia database is used to store a variety of data. Hypermedia databases are created more and more in the recent years. But we cannot find out which Hypermedia database provides higher performance. Benchmark gives a vital tool to measure and evaluate the performance of the Hypermedia databases. There are many benchmark workload models used to test the general databases. However, there is few benchmark workload model to test the Hypermedia databases. With this scenario, we have developed a more generalized four-component workload model for Hypermedia database benchmark. These components are the object model, the application model, the navigation model, and the control model. Each models one key aspect of the Hypermedia database workload requirements. And then, we build the prototype of this workload model to showht the Hypermedia benchmark workload model is feasible. A formal and systematic workload method is developed that can help users predict and profile the performance of the Hypermedia databases. Finally, we discuss and explain our workload model and the relationships with other object-oriented database benchmarks.