Workshop "Netz- und Service-Infrastrukturen" Überblicksvortrag XSLT. Arbeitsweise, Kontrollfluss, Elemente und Funktionen

Zugl.: Saarbrücken, Univ., Diss., 2007 u.d.T.: Schäfer, Ulrich: Integrating deep and shallow natural language processing components / Hergestellt on demand

<p>Detta examensarbete analyserar huruvida en användare behöver medverka när ett XSLT-skript, med syfte att transformera textfilsdatabaser till XML-dokument, genereras. XSLT-skripten skapas med hjälp av en XSD-fil och en textfilsdatabas samt att användaren mappar dessa värden till XML-dokumentet för att bygga XML-dokumentets struktur. För att utvärdera detta har en prototyp tagits fram som en ”proof-of-concept”. Prototypsystemet visar att en transformering från en textfilsdatabas till ett XML-dokument med hjälp av en XSD-fil inte går att automatgenerera fullt ut. Det medför att en användare måste göra en mappningen mellan textfilsdatabasen till XML-dokumentet. Nyttan av prototypen är att en användare aldrig behöver förstå XSLT-skriptning utan behöver bara mappa värderna i en grafisk miljö som sedan genererar XSLT-skriptet</p>

Made available in DSpace on 2014-06-12T15:58:48Z (GMT). No. of bitstreams: 2 arquivo4701_1.pdf: 1621449 bytes, checksum: 6b5c6ef55f58ad1d27736c6c74fd4ca4 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2003 / Nos últimos anos, com o crescimento dos sistemas de informação, metadados tornaram-se peças chave no gerenciamento de todo o ciclo de vida desses sistemas. Muitos esforços recentes, tanto das áreas acadêmicas quanto da indústria, estão sendo concentrados em pesquisas relacionadas a metadados. Esses estudos tentam definir metodologias e padrões para construção e interoperabilidade de sistemas de informação baseados em metadados. Atualmente, metadados são utilizados em diversas áreas, como Data Warehouse, bibliotecas eletrônicas, engenharia de software e integração de aplicações heterogêneas. Com o advento da internet, novas aplicações surgem, juntamente com novos padrões para representação. Esses padrões incluem XML (Extensible Markup Language), DTD (Document Type Definition), XML Schema, RDF (Resource Description Framework), RDF Schema, XSLT (Extensible Stylesheet Language Transformation), entre outros. Cada padrão foi desenvolvido para determinados tipos de aplicação. Por exemplo, DTD e XML Schema são padrões para descrição de estruturas de dados, RDF é utilizado para descrição de recursos como páginas Web enquanto que XSLT é utilizado na transformação de documentos XML. A especificação de metadados, aliada à sua gerência eficiente, são os grandes desafios de um ambiente de construção de um Data warehouse. Este trabalho tem como objetivo a construção de uma solução de metadados para o ambiente REDIRIS (Research Environment on Data Integration, Reuse and Quality in Information Systems). O REDIRIS propõe auxiliar os usuários nas tarefas de análise, modelagem, construção e reuso de solução de Data warehouse. O módulo de metadados será responsável por gerenciar toda a informação necessária para a funcionalidade e gerenciamento do ambiente. Para isto, foram projetados e implementados vários metamodelos baseados nos padrões, citados anteriormente. Foi utilizado o MOF (Meta Object Facility) para a construção dos metamodelos e JMI (Java Metadata Interface) para a implementação dos mesmos. As vantagens deste tipo de abordagem são um conjunto de interfaces comuns para gerenciamento dos metadados representados em qualquer padrão (XML, DTD, RDF) e um formato único para intercâmbio desses metadados, o XMI (XML Metadata Interchange)

Sammanfattning Allt eftersom kraven ökat på mer avancerade applikationer över Internet har det förekommit kritik mot att HTML inte räcker till, vilket är en av anledningarna till att ett nytt märkningsspråk som heter XML växt fram. I det här arbetet redogör vi för, alltifrån grunderna i XML till mer avancerade delar som DTD, XML-schema och XSLT. XML kombinerar HTML:s enkelhet med SGML:s möjligheter. En av XML:s främsta styrkor är att det kan användas för att lagra all typ av data, utan att man behöver ta någon hänsyn till hur den senare ska presenteras. Innehåll och presentation är helt separerade. En annan viktig egenskap är att XML-dokument lagras som vanliga textfiler, vilket innebär att XML är system- och plattformsoberoende. I denna uppsats utgår vi från två mål, dels att tillämpa XML för att skapa ett lämpligt lagringsformat för konfigurationsdata till en nätverksemulator, och dels att redogöra för XML. För att emulera förhållanden som finns i ett riktigt nätverk kan t ex bitfel, paketförluster, bandbreddsbegränsning och fördröjning emuleras. Inställningar av önskad frekvens av paketförluster, bitfel o s v är exempel på konfigurationsdata. Då vi redogör för XML återkopplar vi till, och beskriver tillämpningen stegvis. På så sätt får läsaren en god inblick i hur XML fungerar. / Abstract HTML is not powerful enough to handle the increasing demands on Internet applications of today, which is one of the reasons to why a new markup language called XML has been introduced. In this report we describe the basics as well as more advanced parts of XML like DTD, XML Schema and XSLT. XML combines the simplicity of HTML and the possibilties of SGML. One of the premier strengths of XML is that it may be used to store any type of data without any considerations to how it will be presented later. The content and the presentation are separated completely. Another important property is that XML documents are stored as ordinary text files, which means that XML is system and platform independent. In this report our aim consists of two goals. One goal is to create a suitable format for storing configuration data using XML. The configuration data is to be used by a network emulator. In order to emulate the conditions present in a real network the emulator is capable of emulating things as bit errors, packet losses, bandwidth limitation and delay, all of which are examples of configuration data. The other goal is to describe the basics as well as more advanced parts of XML in general. As we describe XML, we continuously show how we apply this knowledge to our application. In this way, the reader achieves a good insight into how XML works.

This thesis deals with conversion of text documents from the format of so called formatting objects (XSL FO) to OpenDocument format (ODF). This conversion can be useful e. g. for distribution, printing or additional modification of a document in a text editor which supports ODF (e. g. OpenOffice). The thesis starts with description of both formats and it mentions basic elements that the formats offer for defining a text document. A comparison of both formats and description of possibilities of converting documents from XSL FO to ODF follows right after. The proved-by-practise and widely available XSLT transformation is chosen for the conversion implementation. It is illustrated on a sample application which enables to launch the conversion from an internet browser, from OpenOffice or from a command line.

Magistrinis darbas turi išspręsti problemas iškylančias norint sujungti WSDL servisus veikiančius SOAP protokolu. Problemai išspręsti sukurta programinė įranga, kuri naudojant XSLT tranformacijas suvienodina servisų struktūras, pateikia vartotojui servisų projektavimo įrankį ir rezultate gražina programinį kodą. / This work is trying to solve the WSDL services mapping problem. To solve the problem was chosen develop the new system, because there is no such a decision that has been made or is currently under construction. The system will have a graphical user interface that will be generated by the WSDL description. The main requirement is that a developed system can generate the programing code by combining several existing e-service SOAP protocols.

ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California / As data acquisition systems evolve and begin utilizing new avenues of acquisition such as Ethernet, an entirely new range of flight test capabilities become available. These new capabilities, defined by acquisition, monitoring, and varying of test measurements, enhance previous operation as they can now be realized during flight. Achieving such high levels of integration between ground station and test vehicle involves complex network protocols. Implementing such systems from scratch would be a time consuming and costly proposition. Fortunately, employing Internet protocols (TCP/IP) over Ethernet provides a cornucopia of readily available technology. Using state-of-the-art integration techniques, modern data acquisition systems can leverage years of proven technology offered by the Internet Engineering Task Force (IETF) and the World Wide Web Consortium (W3C). This paper discusses an implementation of dynamic data acquisition measurements for use in network data acquisition systems. The methodology used to determine whether or not a measurement can and should be variable during a flight test is examined in detail along with a discussion of the advantages of dynamically varying flight test measurements. Finally, an implementation is presented which successfully integrates Internet protocols with modern flight test equipment using the techniques described above for dynamic data acquisition measurements.

ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada / Many engineers express frustration with the multitude of vendor specific tools required to describe measurements and configure data acquisition systems. In general, tools are incompatible between vendors, forcing the engineer to enter the same or similar data multiple times. With the emergence of XML technologies, user centric data modeling for the flight test community is now possible. With this new class of technology, a vendor neutral, standard language to define measurements and configure systems may finally be realized. However, the allure of such a universal language can easily become too abstract, making it untenable for hardware configuration and resulting in a low vendor adoption rate. Conversely, a language that caters too much to vendor specific configuration will defeat its purpose. Achieving this careful balance is not trivial, but is possible. Doing so will produce a useful standard without putting it out of the reach of equipment vendors. This paper discusses the concept, merits, and possible solutions for a standard measurement metadata model. Practical solutions using XML and related technologies are discussed.

Magistro darbo tema – Transformavimo operatoriai pusiau struktūrizuotų (XML) duomenų bazių užklausų kalbose. Yra nustatoma tyrimui naudojama užklausų kalba – XQuery. Detaliai aprašoma informacija susijusi su užklausų kalba ir informacija, kuri bus naudojama XQuery užklausų kalbos transformavimo operatorių (šiame darbe – funkcijų) kūrime, bei tyrime. Pasinaudojama formaliu modeliu pasiūlytu „Université de Toulon et du Var“ universiteto tyrimo grupės [BMM03]. Yra sukuriamos keturios funkcijos : transf_insert, transf_delete, transf_replace, transf_move. Toliau yra sukuriamas XML dokumentas, kuris bus naudojamas tyrime t.y. palyginime tarp sukurtų XQuery funkcijų, bei XSLT transformacijų. Tyrimas yra atliekamas lyginant kiekvieną sukurtą funkciją su XSLT transformacijomis po du kartus. Pirmą kartą yra lyginama transformacija su elementu, o antrą kartą su elementu ir požymiu. Antrame tyrime yra naudojamos automatiškai sugeneruotos XML struktūros, kurios skiriasi medžio ilgiu, gyliu ir galutiniu dokumento dydžiu. Yra lyginamos transformacijos su elementu ir požymiu šiem dokumentam. Galiausiai yra pristatomos išvados ir rezultatai, kuriuose yra pasiūloma kaip ir kada galima būtų naudoti naujai sukurtas funkcijas ir kada galima būtų naudoti XSLT transformacijas. / This document is about the transformation operators in semi-structured (XML) database query languages. XQuery is chosen as a query language to be used for research. A detailed description of the information related to the query language and information that will be used for development and investigation of XQuery transformation operators (in this work – functions) is provided. The formal model of transformation operators that was created by „Université de Toulon et du Var“ university research group [BMM03] is used in this work. We create four functions (named: transf_insert, transf_delete, transf_move, transf_replace) and an XML document. The document is used in the comparison between new XQuery functions and the XSLT transformation. The comparison is executed twice for each of the functions: first, for elements only and then for the same elements along with their attributes. The second part of the research is performed on different XML documents that are automatically generated and their structure differs in tree length, tree depth and resulting size of the document. Finally, conclusions and results are being introduced. It is concluded in which situations which technology should be preferred to use – either XQuery or XSLT transformations.