Thesis (M.Sc.)--York University, 2007. Graduate Programme in Computer Science and Engineering. / Typescript. Includes bibliographical references (leaves 187-189). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR38770

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Thesis (MBA)--Stellenbosch University, 2002. / ENGLISH ABSTRACT: The Extensible Markup Language (XML) has become the language of choice for any kind of data transfer between different business entities. Technologies based on XML like the Extensible Stylesheet Language, the Extensible Linking Language and SOAP add vital functionality and make the use of XML in many different business application scenarios possible. Companies that start employing XML as their format of choice for data exchange are often faced with the problem of different XML dialects within their company or with their business partners. This research project looks at the different solutions that are available for this problem and evaluates their appropriateness for certain scenarios. The first viable solution is employing the Extensible Stylesheet Language which allows for basic transformation on the basis of stylesheets. Companies that use this technology for simple conversion problems can either develop applications themselves or rely on tools from third-party vendors. For more advanced conversion needs a more flexible solution is appropriate. Custom made conversion frameworks developed by using a fourth generation programming language like Java offer the advantages of scalability by connecting more than one communication partner, platform-independency and a high degree of flexibility. Another option that will payoff in the future is the adherence to one of the developing industry XML standards. Such standards are mostly still in the development phase and have not been adopted widely yet. But once it becomes clear which standards are going to survive for each industry the adoption of such a standard will eliminate the need for any customised conversion and facilitate data exchange between business partners that adhere to the same standard. In general it is recommended to research existing XML standards before developing a proprietary one. When a proprietary format already exists the choice of the conversion tools and methods depends on the complexity of the transformation. Simple transformation needs can be solved by employing the XSLT technology while more advanced needs require the development of a customised conversion framework. / AFRIKAANSE OPSOMMING: Die Extensible Markup Language (XML) het die taal van keuse geword vir enige soort van data oordraging tussen verskillende bedryfsentiteite. Tegnologie gebaseer op XML soos die Extensible Stylesheet Language, die Extensible Linking Language en Simple Object Access Protocol (SOAP) dra by tot betekenisvolle waardetoevoeging en maak die gebruik van XML in 'n groot verskeidenheid van besigheidstoepassings scenarios moontlik. Ondernemings wat XML as hul formaat van keuse vir data oordraging meer en meer begin gebruik, word dikwels met die probleem van verskillende XML dialekte intern tot hul onderneming sowel as ekstern tot hul sakevennote, gekonfronteer. Hierdie studie ontleed die verskillende oplossings wat beskikbaar is vir die probleem en evalueer dan die toepaslikheid vir sekere scenarios. Die eerste uitvoerbare oplossing is die gebruik van die Extensible Stylesheet Language wat toelaat vir basiese transformasie op die grondslag van stylblaaie. Ondernemings wat hierdie tegnologie vir eenvoudige omsettingsprobleme wil gebruik kan óf self toepassings ontwikkel of staatmaak op gereedskap vanaf derde party verskaffers. Vir meer gevorderde omsettingsbehoeftes is 'n meer buigsame oplossing geskik. Doelgemaakte omskakelingsraamwerke wat ontwikkel word deur gebruik te maak van 'n vierde generasie programmeringstaal soos JAVA bied die voordele van skalering deur meer as een kommunikasievennoot te konnekteer, platform onafhanklikheid en 'n hoë graad van buigsaamheid. Nog 'n opsie wat rendement in die toekoms kan lewer is om te bly by een van die ontwikkelende industrie XML standaarde. Sulke standaarde is meesal nog in die ontwikkelingsfase en word nog nie tot nou algemeen aanvaar nie. As dit egter begin duidelik word watter standaarde gaan oorleef vir elke industrie sal die aanvaarding van sulke standaarde die nodigheid vir doelgemaakte omskakeling elimineer en sal dit data uitruiling tussen sakevennote wat hou by dieselfde standaarde bevorder. In die algemeen word dit aanbeveel dat bestaande XML standaarde goed nagevors word alvorens 'n alleenreg een ontwikkel word. Wanneer 'n alleenregformaat alreeds bestaan sal die keuse van transformasiegereedskap en metodes afhang van die kompleksiteit van die transformasie. Eenvoudige transformeerde behoeftes kan bevredig word deur die XSLT tegnologie te gebruik, terwyl meer gevorderde behoeftes die ontwikkeling van 'n doelgemaakte omskakelingraamwerk sal benodig.

published_or_final_version / Computer Science / Doctoral / Doctor of Philosophy

Approved for public release, distribution unlimited / Adopting Extensible Markup Language (XML) and Hypertext Transfer Protocol (HTTP) are key steps to accommodate the evolution of Internet technologies. While HTTP is already a proven standard communication protocol responsible for the rapid expansion of the World Wide Web, XML provides general mechanisms for determining validatable documents and addresses several deficiencies of HTML regarding diverse document structure and content. XML and HTTP together provide many of the essential capabilities associated with database engines. The Modeling, Virtual Environments and Simulation (MOVES) Institute of the Naval Postgraduate School (NPS) is continuing to build a database of 3D tactical scenarios and using X3D and VRML tools. The configuration parameters and statistical results of these scenarios are XML documents. For a better understanding and usability of these results by the end users, a Webbased application stores and manipulates these XML document. This thesis develops a server-side application that can store, serve, and annotate tactical scenarios for X3D operational visualization and anti-terrorist training by using XML and HTTP technologies. The experimental demonstration for this work is the prototypical Anti-Terrorism/Force Protection (AT/FP) simulation model developed by Lieutenant James W. Harney, USN, using Extensible 3D Graphics (X3D)/ Virtual Reality Modeling Language (VRML) models. / Captain, Tunisian Army

by Yuen Lok-tin. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 88-95). / Abstracts in English and Chinese. / ABSTRACT --- p.I / 摘要 --- p.III / ACKNOWLEDGEMENT --- p.V / TABLE OF CONTENTS --- p.VI / LIST OF FIGURES --- p.VIII / LIST OF TABLES --- p.IX / Chapter 1 --- INTRODUCTION --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Objectives --- p.2 / Chapter 1.3 --- Organization --- p.4 / Chapter 2 --- LITERATURE REVIEW & THEORETICAL FOUNDATION --- p.6 / Chapter 2.1 --- "Data, Information and Knowledge" --- p.6 / Chapter 2.2 --- Knowledge Management --- p.7 / Chapter 2.3 --- Information Transparency and Efficiency --- p.10 / Chapter 2.3.1 --- Transparency --- p.11 / Chapter 2.3.2 --- Efficiency --- p.13 / Chapter 2.4 --- extensible markup language (XML) --- p.14 / Chapter 3 --- DIGITAL FINANCIAL INFORMATION AND ISSUES --- p.16 / Chapter 3.1 --- Managing Financial Information on the Internet --- p.17 / Chapter 3.2 --- Existing Electronic Financial Filing Systems --- p.20 / Chapter 3.3 --- Financial Document Disclosure Model --- p.21 / Chapter 3.4 --- Interaction Between Information Producers and Consumers --- p.23 / Chapter 3.5 --- Gluing All Together --- p.26 / Chapter 4 --- IDEAL ELECTRONIC FINANCIAL DISCLOSURE SYSTEM --- p.27 / Chapter 4.1 --- Structure and Representation of Knowledge --- p.28 / Chapter 4.2 --- Content Creation --- p.33 / Chapter 5 --- PROPOSED APPROACH --- p.36 / Chapter 5.1 --- Preliminary XML Data Dictionary --- p.36 / Chapter 5.2 --- Creation of XML Tags --- p.40 / Chapter 5.2.1 --- Statistical Information Retrieval --- p.41 / Chapter 5.2.2 --- Accounting and Auditing Practice --- p.43 / Chapter 5.2.3 --- Investors´ةFeedback --- p.44 / Chapter 5.3 --- Value-Added Services --- p.45 / Chapter 6 --- DESIGN AND DEVELOPMENT OF ELFFS-XML --- p.49 / Chapter 6.1 --- Stages of ELFFS-XML --- p.49 / Chapter 6.1.1 --- Information Creation --- p.49 / Chapter 6.1.2 --- Information Collection/Storage --- p.50 / Chapter 6.1.3 --- Knowledge Generation --- p.51 / Chapter 6.1.4 --- Knowledge Dissemination/Presentation --- p.52 / Chapter 6.1.5 --- Feedback --- p.52 / Chapter 6.2 --- Components of ELFFS-XML --- p.53 / Chapter 6.2.1 --- Data Source Abstraction Layer --- p.55 / Chapter 6.2.2 --- Storage Abstraction Layer --- p.57 / Chapter 6.2.3 --- Logic Layer --- p.61 / Chapter 6.2.4 --- Presentation Layer --- p.63 / Chapter 7 --- EVALUATING ELFFS-XML --- p.66 / Chapter 7.1 --- Comparison with Other Financial Information Disclosure Systems --- p.66 / Chapter 7.2 --- Users' Evaluation --- p.70 / Chapter 7.3 --- Systems Efficiency --- p.71 / Chapter 7.4 --- XML Tag Generation Approach Performance Evaluation --- p.73 / Chapter 8 --- CONCLUSION AND FUTURE RESEARCH --- p.78 / APPENDIX I SURVEY ON INVESTMENT PATTERN --- p.80 / APPENDIX II CORE ELFFS-XML DTD --- p.84 / APPENDIX III PERFORMANCE RELATED XML TAGS --- p.86 / BIBLIOGRAPHY --- p.88

Wong Chung-Yu. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2002. / Includes bibliographical references (leaf 75). / Abstracts in English and Chinese. / Abstract --- p.ii / List of figures --- p.viii / List of tables --- p.ix / Chapter 1. --- BACKGROUND --- p.1 / Chapter 1.1 --- An analysis of manuals --- p.1 / Chapter 1.2 --- Existing practice --- p.5 / Chapter 1.3 --- New concept in dynamic manual --- p.7 / Chapter 1.3.1 --- Dynamic representation --- p.7 / Chapter 1.3.2 --- Machine-orientation --- p.8 / Chapter 2. --- DESIGN PHILOSOPHY --- p.10 / Chapter 2.1 --- Concept --- p.10 / Chapter 2.2 --- Data node --- p.12 / Chapter 2.3 --- Characteristic of function and operator --- p.14 / Chapter 2.4 --- Function hierarchy --- p.17 / Chapter 2.5 --- Manual-tree (conceptual and actual) --- p.18 / Chapter 2.6 --- Coding --- p.20 / Chapter 2.7 --- Operation sequence --- p.21 / Chapter 2.8 --- Parameter passing --- p.22 / Chapter 2.9 --- Manual-tree operation --- p.24 / Chapter 3. --- IMPLEMETATION OF DYNAMIC MANUAL SYSTEM --- p.25 / Chapter 3.1 --- Generator --- p.26 / Chapter 3.1.1 --- File format and generation --- p.26 / Chapter 3.2 --- Reader --- p.35 / Chapter 3.2.1 --- Guide service --- p.36 / Chapter 3.2.2 --- Button querying service --- p.37 / Chapter 3.2.3 --- Personal management service --- p.38 / Chapter 3.2.3.1 --- Insert --- p.38 / Chapter 3.2.3.2 --- Delete --- p.40 / Chapter 3.2.3.3 --- Swap --- p.40 / Chapter 3.3 --- The graphics --- p.42 / Chapter 4. --- EXPERIMENTS --- p.43 / Chapter 4.1 --- Experiment I (mobile phone) --- p.43 / Chapter 4.1.1 --- Data preparation --- p.43 / Chapter 4.1.2 --- Generating XML file --- p.46 / Chapter 4.1.3 --- Preparing multimedia material --- p.46 / Chapter 4.1.4 --- Design of Reader --- p.47 / Chapter 4.1.5 --- Testing --- p.51 / Chapter 4.1.5.1 --- Top-down search test --- p.51 / Chapter 4.1.5.2 --- Bottom-up search test --- p.52 / Chapter 4.1.5.3 --- function hierarchy modifying test --- p.53 / Chapter 4.2 --- Experiment II (pager) --- p.54 / Chapter 4.2.1 --- Data preparation --- p.54 / Chapter 4.2.2 --- Generating XML file --- p.54 / Chapter 4.2.3 --- Preparing multimedia material and the Reader --- p.56 / Chapter 4.2.4 --- Testing --- p.57 / Chapter 4.2.4.1 --- Top-down search test --- p.58 / Chapter 4.2.4.2 --- Bottom-up search test --- p.58 / Chapter 4.2.4.3 --- function hierarchy modifying test --- p.59 / Chapter 4.3 --- Control graphics constrain --- p.61 / Chapter 5. --- RESULTS --- p.65 / Chapter 5.1 --- Change of representation --- p.65 / Chapter 5.2 --- Storage and computation requirements --- p.70 / Chapter 6. --- CONCLUSION --- p.72 / References --- p.75 / Appendix A.1 input file of mobile phone (function part) --- p.76 / Appendix A.2 input file of mobile phone (operator part) --- p.96 / Appendix B.1 input file of pager (function part) --- p.105 / Appendix B.2 input file of pager (operator part) --- p.111 / Appendix C Function hierarchies and operator lists of the experiments --- p.113 / Appendix D Key words --- p.117

"Keeping views fresh by maintaining the consistency between materialized views and their base data in the presence of base updates is a critical problem for many applications, including data warehousing and data integration. While heavily studied for traditional databases, the maintenance of XML views remains largely unexplored. Maintaining XML views is complex due to the richness of the XML data model and the powerful capabilities of XML query languages, such as XQuery. This dissertation proposes a comprehensive solution for the general problem of maintaining materialized XQuery views. Our solution is the first to enable the maintenance of a large class of XQuery views including XPath expressions, FLWOR expressions, and Element Constructors. These views may contain arbitrary result construction and arbitrary grouping and join operations. Our solution also supports the unique order requirements of XQuery including source document order and query order. The contributions of this dissertation include: (i) an efficient solution for supporting order in XML query processing and view maintenance, (ii) an identifier-based technique for enabling incremental construction of XML views, (iii) a mechanism for modeling and validating source XML updates, (iv) a counting algorithm for supporting view maintenance on delete and modify updates, (v) an algebraic solution for propagating bulk XML updates, and (vi) an efficient mechanism for refreshing materialized XML views on propagated updates. We provide proofs of correctness of our proposed techniques for materialized XQuery maintenance. We have implemented a prototype of our view maintenance solution on top of the Rainbow XML query engine, developed at WPI. Our experiments confirm that our solution provides a practical and efficient solution for maintaining materialized XQuery views even when handling heterogeneous batches of possibly large source updates. Our solution follows the widely adopted propagate-apply framework for view maintenance common to all mainstream query engines. That is, our solution produces incremental maintenance plans in the same algebraic language used to define the views. These plans can thus be optimized and executed by standard query processing techniques. Being compatible with standard frameworks paves the way for our XML view maintenance solution to be easily adopted by existing database engines."

"Update operations over XML views are essential for applications using XML views. In this dissertation work, we provide scalable solutions to support updating through XML views defined over relational databases. Especially we focus on the update-public semantic, where updates are always public (made to the public database), and the update-local semantic, where update effects are first kept local and then made public as and when required. Towards this, we propose the clean extended-source theory for determining whether a correct view update translation exists, which then serves as a theoretical foundation for us to design practical XML view updating algorithms. Under update-public semantic, state-of-the-art view updating work focus on identifying the correct update translation purely on the data. We instead take a schema-centric solution, which utilizes the schema of the underlying source to effectively prune updates that are guaranteed to be not translatable and pass updates that are guaranteed to be translatable directly to the SQL engine. Only those updates that could not be classified using schema knowledge are finally analyzed by examining the data. This required data-level check is further optimized under schema guidance to prune the search space for finding a correct translation. As the first work addressing the update-local semantic, we propose a practical framework, called LoGo. LoGo Localizes the view update translation, while preserves the properties of views being side-effect free and updates being always updatable. LoGo also supports on-demand merging of the local database of the subject viewinto the public database (also called global database), while still guaranteeing the subject view being free of side effects. A flexible synchronization service is provided in LoGo that enables all other views defined over the same public database to be refreshed, i.e., synchronized with the publically committed changes, if so desired. Further, given that XMLis an ordered datamodel,we propose an ordersensitive solution named O-HUX to support XML view updating with order. We have implemented the algorithms, along with respective optimization techniques. Experimental results confirm the effectiveness of the proposed services, and highlight its performance characteristics."