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GraphSchema : uma linguagem visual para a criação de modelos de contratos com SML; GraphSchema : a visual language to create contract models with SML

Rivaldo, Ricardo de Moura
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
27.25%
É usual falar da onipresença dos documentos de texto e na quantidade de informação não estruturada, armazenada sob a forma de arquivos com documentos de texto em linguagem natural. Este fato torna-se mais dramático no domínio jurídico, onde o texto é a ferramenta básica de trabalho dos profissionais da área, tanto na forma das fontes de consulta, i.e., a legislação, como no principal produto da atividade jurídica, especificamente a criação de documentos escritos. Desde a invenção do editor de texto existem iniciativas de utilização de tecnologias da informação para auxiliar a geração, armazenamento e consulta de documentos jurídicos. Dentre os diversos ramos da atividade jurídica, a criação de contratos é especialmente importante, devido a sua onipresença nas interações entre os agentes sociais, sejam elas pessoas físicas, jurídicas ou agentes de governo. Com foco na criação de modelos de contratos, este trabalho introduz a linguagem gráfica GraphSchema. Projetada para usuários finais, GraphSchema utiliza uma representação visual para criação de modelos de contratos jurídicos, permitindo a modelagem dos conceitos, relacionamentos e restrições entre estes. A representação visual é diretamente mapeada na linguagem SML...

Constraint specification languages : comparing XCSL, Schematron and XML-Schemas

Jacinto, Marta Henriques; Librelotto, Giovani Rubert; Ramalho, José Carlos; Henriques, Pedro Rangel
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Conferência ou Objeto de Conferência
Publicado em //2002 POR
Relevância na Pesquisa
27.25%
After being able to mark-up text and validate its structure according to a grammar, we may start thinking it would be natural to be able to validate some non-structural issues in XML documents like relationships between elements belonging to different contexts, invariants over data models, constraints over attribute values and relationships between attributes. XML Schemas are a big step in that direction. However, they only allow users to specify primitive constraints like data typing and data format. Currently, we can find two approaches that represent a complement to DTDs or XML Schemas - XCSL and Schematron - and allow us to specify constraints and to validate the instances of a family of documents against that set of rules. Both are implemented on top of XSL. Both use a kind of an XML envelope to hide XSL specification. XSLT pattern language is the core language of both systems. With all these resemblances it is easy to conclude that they are quite similar. However they differ in some fundamental concepts. These two constraint specification languages together with XML Schemas were hardly tested and benchmarked with an huge test suite. The most significant results will be discussed in this paper. We will try to answer questions like: Do they do the same job? Are there some kind of constraints that are easier to specify with one of them? Do you need different background to use the tools? Is it possible to use them in similar situations (the same DTD...

SGML and XML as interchange formats for HL7 messages.

Dolin, R. H.; Rishel, W.; Biron, P. V.; Spinosa, J.; Mattison, J. E.
Fonte: American Medical Informatics Association Publicador: American Medical Informatics Association
Tipo: Artigo de Revista Científica
Publicado em //1998 EN
Relevância na Pesquisa
27.25%
OBJECTIVE: To report on the use of SGML and XML (a proper subset of SGML) as transfer syntaxes for HL7 Version 2.3 and Version 3.0 messages. METHODS: The methodology has focused largely on two questions: Can it be done? How best to do it? The first question is addressed by attempting to build an SGML/XML representation of HL7 messages. The second question requires a consideration of several metrics: message length, speed of message creation and parsing, interversion compatibility, local customization, conformance determination, and the availability of software tools and skill on the format. RESULTS: Detailed specifications for expressing HL7 in SGML and XML have been developed. Some HL7 requirements are not readily expressed, while some ambiguous areas of the HL7 standard are made explicit in the SGML/XML representation. With the current design, an SGML/XML parser can extract any component of any data type from a message. CONCLUSIONS: SGML and XML can both serve as implementable message specifications for HL7 Version 2.3 and Version 3.0 messages. The ability to explicitly represent an HL7 requirement in SGML/XML confers the ability to validate that requirement with an SGML parser. The optimal message representation will be a balance of functional...

An Adaptable XML Based Approach for Scientific Data Management and Integration

Wang, Fusheng; Thiel, Florian; Furrer, Daniel; Vergara-Niedermayr, Cristobal; Qin, Chen; Hackenberg, Georg; Bourgue, Pierre-Emmanuel; Kaltschmidt, David; Wang, Mo
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em 20/02/2008 EN
Relevância na Pesquisa
27.2%
Increased complexity of scientific research poses new challenges to scientific data management. Meanwhile, scientific collaboration is becoming increasing important, which relies on integrating and sharing data from distributed institutions. We develop SciPort, a Web-based platform on supporting scientific data management and integration based on a central server based distributed architecture, where researchers can easily collect, publish, and share their complex scientific data across multi-institutions. SciPort provides an XML based general approach to model complex scientific data by representing them as XML documents. The documents capture not only hierarchical structured data, but also images and raw data through references. In addition, SciPort provides an XML based hierarchical organization of the overall data space to make it convenient for quick browsing. To provide generalization, schemas and hierarchies are customizable with XML-based definitions, thus it is possible to quickly adapt the system to different applications. While each institution can manage documents on a Local SciPort Server independently, selected documents can be published to a Central Server to form a global view of shared data across all sites. By storing documents in a native XML database...

Um modelo híbrido baseado em ontologias e RBC para a concepção de um ambiente de descoberta que proporcione a aprendizagem de conceitos na formação de teorias por intermédio da metáfora de contos infantis

Pessôa Neto, Agnaldo Cavalcante de Albuquerque
Fonte: Universidade Federal de Alagoas; BR; Modelagem Computacional de Conhecimento; Programa de Pós-Graduação em Modelagem Computacional de Conhecimento; UFAL Publicador: Universidade Federal de Alagoas; BR; Modelagem Computacional de Conhecimento; Programa de Pós-Graduação em Modelagem Computacional de Conhecimento; UFAL
Tipo: Dissertação Formato: application/pdf
POR
Relevância na Pesquisa
27.25%
The actual work shows a model of discovery learning in order to realize a discovery environment (PARAGUAÇU, 1997) to demonstrate to the apprentice students in science, the understanding of how the concepts that are used in the creation of scientific theories are related. The subject is reached with the idea that is possible to create scientific theories in scientific models (FRIGG; HARTMANN, 2006; RUDNER, 1969), and that these models can be used to help in such learning. However, with the availability of such models, instead of introducing scientific terms related to some scientific topics, it intends to use the metaphor of Fairy Tales, what means, the vocabulary use of terms where the apprentice can understand by intuition on how a scientific theory is elaborated. On the other hand, in order to create and formalize this scientific model it was created the idea that was proposed by MIDES Architecture MIDES (PARAGUAÇU et al., 2003), which means the creation of a scientific model with the representation in XML (W3SCHOOLS, 2005b) in four views of knowledge: Hierarchy, Relational, Causal, and by Asking. So, the idea of this work is to show how the creation in XML is made, and to do so, it s necessary to make a review of the following subjects: learning environments; teaching based on cases; and some general aspects of a creation of a scientific theory...

Managing the Evolution of XML-based Mediation Queries

Farias Lóscio, Bernadette; Carolina Brandão Salgado, Ana (Orientador)
Fonte: Universidade Federal de Pernambuco Publicador: Universidade Federal de Pernambuco
Tipo: Outros
EN_US
Relevância na Pesquisa
27.2%
Diversos sistemas de integração de dados têm sido propostos na literatura com o objetivo de prover acesso integrado a diferentes fontes de dados, que podem ser autônomas e heterogêneas. O problema de integração de dados consiste em oferecer uma visão uniforme das fontes de dados (chamada esquema de mediação ou esquema global) e definir um conjunto de consultas (chamadas consultas de mediação) as quais determinam como obter cada elemento do esquema de mediação em função dos dados armazenados nas fontes locais. Sistemas de integração de dados podem ser classificados de acordo com a abordagem adotada para definição dos mapeamentos entre as fontes de dados e o esquema de mediação. Duas abordagens principais são apresentadas na literatura: Visão Global e Visão Local. Na abordagem Visão Global cada elemento do esquema de mediação é representado como uma visão sobre as fontes de dados. Na abordagem Visão Local cada elemento em uma dada fonte de dados é definido como uma visão sobre o esquema de mediação. Uma das contribuições deste trabalho é a proposta de um sistema de integração de dados que adota a abordagem Visão Global. Um importante diferencial deste sistema é que além de prover acesso integrado a dados distribuídos e heterogêneos...

Instance-based XML data binding for mobile devices

TAMAYO Alain; GRANELL CANUT CARLOS; HUERTA Joaquin
Fonte: ACM DL Publicador: ACM DL
Tipo: Contributions to Conferences Formato: Online
ENG
Relevância na Pesquisa
27.25%
XML and XML Schema are widely used in different domains for the definition of standards that enhance the interoperability between parts exchanging information through the Internet. The size and complexity of some standards, and their associated schemas, have been growing with time as new use case scenarios and data models are added to them. The common approach to deal with the complexity of producing XML processing code based on these schemas is the use of XML data binding generators. Unfortunately, these tools do not always produce code that fits the limitations of resource-constrained devices, such as mobile phones, in the presence of large schemas. In this paper we present Instance-based XML data binding, an approach to produce compact application-specific XML processing code for mobile devices. The approach utilises information extracted from a set of XML documents about how the application make use of the schemas.; JRC.H.6-Digital Earth and Reference Data

XML tactical chat (XTC) extensible messaging and presence protocol for command and control applications

Armold, Adrian D.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado
Relevância na Pesquisa
27.25%
Approved for public release, distribution unlimited; Current chat and instant messaging (IM) solutions within the DoD have created problems with information security and interoperability. Though Extensible Message and Presence Protocol (XMPP) is the only mandated chat and IM protocol in the DoD, the majority of the military still operates alternate nonstandard solutions that prevent interoperability and lack appropriate security assurances. XMPP is a streaming XML protocol used for multi-user text chat and Instant Messaging (IM). XMPP supports a large set of administrative and user features, valuable to military chat and IM users. As an open standard, XMPP is also extensible to allow for development of military-specific chat and IM requirements. XMPP protocol also provides significant extensibility to allow for greater command and control and other operational capabilities. This work demonstrates the use of XMPP to route XML-expressed Distributed Interactive Simulation (DIS-XML) data to conduct distributed modeling and simulation. This work also demonstrates the use of XMPP as a generalized XML message-routing framework in conjunction with XML-expressed military data models, such as the Joint Consultation Command and Control Information Exchange Data Model. Also presented in this thesis is an XML document based chat data logger...

Network application server using Extensible Mark-up Language (XML) to support distributed databases and 3D environments

Williams, Clifton James
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado
Relevância na Pesquisa
27.25%
This thesis contributes to the US Navy forces maintaining information superiority in a Network Centric Warfare environment. This research develops an Extensible Markup Language XML-based Web Publishing Framework, which supports the Web Enabled Navy (WEN) architecture infrastructure. The Web application framework easily supports connections to multiple distributed databases and XML-based presentations, specifically three-dimensional (3D) simulations utilizing Extensible 3D (X3D) and Virtual Reality Modeling Language (VRML). This research evaluates and demonstrates the functionality of an XML-based Web Publishing Framework. The research demonstrates ability to connect to both XML and non-XML heterogeneous database systems and provides a framework for the distribution data across heterogeneous systems. The system supports usage in multi-tier network architecture. 3D modeling and simulations provide insights into operations that cannot be realized using standard two-dimensional (2D) renditions. The development of an application server to support 3D modeling and simulations for operational planning will provide the U.S. Navy a better way of realizing operational limits. This research addresses the Web publishing framework, which supports the development XML based data exchange...

Toward XML representation of NSS simulation scenario for mission scenario exchange capability

Hout, Gary K.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado
Relevância na Pesquisa
27.25%
Approved for public release, distribution unlimited; lications, each of which can transform the data into their unique input requirements, using the XML family of specifications. XML validation capabilities ensure that data files can be error free, eliminating many runtime application problems. NSS is currently developed as an application that accesses information from a proprietary commercial object-oriented database that does not support XML interchange. Extending NSS to become an XML-based application is now possible using an XML schema that represents the NSS database. Because the proprietary NSS codebase is not readily modifiable, such XML scenario import/export is achieved via text -based data file conversions. Development of an NSS XML schema and exemplars opens up a powerful new direction for future work.

Hybrid XML Retrieval: Combining Information Retrieval and a Native XML Database

Pehcevski, Jovan; Thom, James A.; Vercoustre, Anne-Marie
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 28/07/2005
Relevância na Pesquisa
27.25%
This paper investigates the impact of three approaches to XML retrieval: using Zettair, a full-text information retrieval system; using eXist, a native XML database; and using a hybrid system that takes full article answers from Zettair and uses eXist to extract elements from those articles. For the content-only topics, we undertake a preliminary analysis of the INEX 2003 relevance assessments in order to identify the types of highly relevant document components. Further analysis identifies two complementary sub-cases of relevance assessments ("General" and "Specific") and two categories of topics ("Broad" and "Narrow"). We develop a novel retrieval module that for a content-only topic utilises the information from the resulting answer list of a native XML database and dynamically determines the preferable units of retrieval, which we call "Coherent Retrieval Elements". The results of our experiments show that -- when each of the three systems is evaluated against different retrieval scenarios (such as different cases of relevance assessments, different topic categories and different choices of evaluation metrics) -- the XML retrieval systems exhibit varying behaviour and the best performance can be reached for different values of the retrieval parameters. In the case of INEX 2003 relevance assessments for the content-only topics...

XML Schema-based Minification for Communication of Security Information and Event Management (SIEM) Systems in Cloud Environments

Moussa, Bishoy; Mostafa, Mahmoud; El-Khouly, Mahmoud
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 03/10/2014
Relevância na Pesquisa
27.25%
XML-based communication governs most of today's systems communication, due to its capability of representing complex structural and hierarchical data. However, XML document structure is considered a huge and bulky data that can be reduced to minimize bandwidth usage, transmission time, and maximize performance. This contributes to a more efficient and utilized resource usage. In cloud environments, this affects the amount of money the consumer pays. Several techniques are used to achieve this goal. This paper discusses these techniques and proposes a new XML Schema-based Minification technique. The proposed technique works on XML Structure reduction using minification. The proposed technique provides a separation between the meaningful names and the underlying minified names, which enhances software/code readability. This technique is applied to Intrusion Detection Message Exchange Format (IDMEF) messages, as part of Security Information and Event Management (SIEM) system communication hosted on Microsoft Azure Cloud. Test results show message size reduction ranging from 8.15% to 50.34% in the raw message, without using time-consuming compression techniques. Adding GZip compression to the proposed technique produces 66.1% shorter message size compared to original XML messages.; Comment: XML...

XString: XML as a String

Gilreath, William F.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
27.25%
Extensible markup language (XML) is a technology that has been much hyped, so that XML has become an industry buzzword. Behind the hype is a powerful technology for data representation in a platform independent manner. As a text document, however, XML suffers from being too bloated, and requires an XML parser to access and manipulate it. XString is an encoding method for XML, in essence, a markup language's markup language. XString gives the benefit of compressing XML, and allows for easy manipulation and processing of XML source as a very long string.; Comment: 27-pages, 2-tables

Enhancing XML Data Warehouse Query Performance by Fragmentation

Mahboubi, Hadj; Darmont, Jérôme
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 27/08/2009
Relevância na Pesquisa
27.25%
XML data warehouses form an interesting basis for decision-support applications that exploit heterogeneous data from multiple sources. However, XML-native database systems currently suffer from limited performances in terms of manageable data volume and response time for complex analytical queries. Fragmenting and distributing XML data warehouses (e.g., on data grids) allow to address both these issues. In this paper, we work on XML warehouse fragmentation. In relational data warehouses, several studies recommend the use of derived horizontal fragmentation. Hence, we propose to adapt it to the XML context. We particularly focus on the initial horizontal fragmentation of dimensions' XML documents and exploit two alternative algorithms. We experimentally validate our proposal and compare these alternatives with respect to a unified XML warehouse model we advocate for.

A General Approach for Securely Querying and Updating XML Data

Mahfoud, Houari; Imine, Abdessamad
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 31/01/2012
Relevância na Pesquisa
27.25%
Over the past years several works have proposed access control models for XML data where only read-access rights over non-recursive DTDs are considered. A few amount of works have studied the access rights for updates. In this paper, we present a general model for specifying access control on XML data in the presence of update operations of W3C XQuery Update Facility. Our approach for enforcing such updates specifications is based on the notion of query rewriting where each update operation defined over arbitrary DTD (recursive or not) is rewritten to a safe one in order to be evaluated only over XML data which can be updated by the user. We investigate in the second part of this report the secure of XML updating in the presence of read-access rights specified by a security views. For an XML document, a security view represents for each class of users all and only the parts of the document these users are able to see. We show that an update operation defined over a security view can cause disclosure of sensitive data hidden by this view if it is not thoroughly rewritten with respect to both read and update access rights. Finally, we propose a security view based approach for securely updating XML in order to preserve the confidentiality and integrity of XML data.; Comment: No. RR-7870 (2012)

Securing Web Services Using XML Signature and XML Encryption

Saravanaguru, RA. K.; Abraham, George; Ventakasubramanian, Krishnakumar; Borasia, Kiransinh
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 04/03/2013
Relevância na Pesquisa
27.25%
This paper is aimed to evaluate the importance of XML Signature and XML Encryption in Web Service Security. In today's business scenario, organizations are investing huge amount of resources in Web Services. Web Service Transactions are done mainly through plain-text XML formats like SOAP and WSDL, hence hacking into them is not a tedious task. XML Signature and XML Encryption ensure security to XML documents as well as retain the structure of documents, thereby making it easy to implement them. These two methods are evaluated on the parameters of authentication, authorization, integration, confidentiality and non-repudiation.; Comment: 6 pages, 8 figures, 1 table

Instance-based XML data binding for mobile devices

Tamayo, Alain; Granell, Carlos; Huerta, Joaquín
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 03/12/2011
Relevância na Pesquisa
27.25%
XML and XML Schema are widely used in different domains for the definition of standards that enhance the interoperability between parts exchanging information through the Internet. The size and complexity of some standards, and their associated schemas, have been growing with time as new use case scenarios and data models are added to them. The common approach to deal with the complexity of producing XML processing code based on these schemas is the use of XML data binding generators. Unfortunately, these tools do not always produce code that ?ts the limitations of resource-constrained devices, such as mobile phones, in the presence of large schemas. In this paper we present Instance-based XML data binding, an approach to produce compact application-specific XML processing code for mobile devices. The approach utilises information extracted from a set of XML documents about how the application make use of the schemas.; Comment: 8 pages, 1 table, 6 figures; Third International Workshop on Middleware for Pervasive Mobile and Embedded Computing (M-MPAC), 2011

XLDM: an xlink-based multidimensional metamodel

Silva, Paulo Caetano da; Cruz, Mateus Silqueira Hickson; Times, Valéria Cesário
Fonte: Universidade de São Paulo. Faculdade de Economia, Administração e Contabilidade Publicador: Universidade de São Paulo. Faculdade de Economia, Administração e Contabilidade
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; ; Formato: application/pdf
Publicado em 01/12/2011 ENG
Relevância na Pesquisa
27.28%
The growth of data available on the Internet and the improvement of ways to handle them consist of an important issue while designing a data model. In this context, XML provides the necessary formalism to establish a standard to represent and exchange data. Since the technologies of data warehouse are often used for data analysis, it is necessary to define a cube model data to XML. However, data representation in XML may generate syntactic, semantic and structural heterogeneity problems on XML documents, which are not considered by related approaches. To solve these problems, it is required the definition of a data schema. This paper proposes a metamodel to specify XML document cubes, based on relationships between elements and XML documents. This approach solves the XML data heterogeneity problems by taking advantages of data schema definition and relationships defined by XLink. The methodology used provides formal rules to define the concepts proposed. Following this formalism is then instantiated using XML Schema and XLink. It also presents a case study in the medical field and a comparison with XBRL Dimensions and a financial and multidimensional data model which uses XLink.

Querying XML documents from a relational database in the presence of DTDs

Rege, Manjeet; Caraconcea, Izabell; Yu, Shiyong; Fotouhi, Farshad
Fonte: Springer: Lecture Notes in Computer Science Publicador: Springer: Lecture Notes in Computer Science
Tipo: Parte de Livro
EN_US
Relevância na Pesquisa
27.25%
Many researchers have investigated the problem of storing and querying XML documents using an RDBMS. Two situations are considered in this approach based on whether or not an XML schema is available. In a schemaoblivious relational approach, an XML schema is not available, or it is available but is not used. The advantage of schema-oblivious relational approach is that no XML schema is required, and the fixed generic schema can be used to store XML documents with arbitrary structure. However, since XML schema is not exploited, this approach usually implies a query engine where join operations dominate the query time and performance might suffer significantly. On the other hand, rare work on the problem of schema-based XML-to-SQL query mapping has been published in the literature. In this paper, we present an algorithm to address this problem.; This book chapter is also available at the publisher's website at: www.springerlink.com at http://dx.doi.org/10.1007/b104418

CERIF REST API Specification v1.0

Houssos, Nikos; Karaiskos, Dimitris
Fonte: euroCRIS Publicador: euroCRIS
Tipo: Relatório
EN
Relevância na Pesquisa
27.25%
16 pages.-- CERIF API v1.0 specification prepared by EuroCRIS and in particular the CRIS Architecture and Development Task Group; The CERIF REST API bundle includes 10 files which are stored together in the same repository folder: 1. The API specification (PDF file in this item) 2. Four (4) XSD files (XML Schema Definition) that are mentioned in the API specification: CERIF-API-Entities.xsd, CERIF-API-Header.xsd, CERIF-API-Main.xsd, CERIF-API-Payload.xsd 3. Five (5) XML files as examples of usage also mentioned in the API specification: entities.xml, identifiers.xml, project.xml, project_short.xml, project_with_linked_orgunits.xml; Specification of a standard API that enables 3rd party software programs to access and reuse Research Information maintained in Current Research Information Systems (CRIS). The primary objectives of the CERIF API are a) to facilitate the interoperability of CRIS systems and their integration with other information systems and b) to enable the development of applications, services and components that can access and reuse information across different CRIS systems in a standard, unified way. The CERIF API is mainly addressed to a) organizations and individuals (e.g. software developers, product managers...