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2000
AI
This research explores an architecture that utilizes XML-based representation for Architecture Description Languages (ADLs). The objective is to develop a unified schema that captures the semantics of various ADLs including C2, Acme, Darwin, and SADL, enhancing the applicability of these languages in industry. The work includes the design of Document Type Definitions (DTD) to establish rules on element relationships and facilitate an independent architectural framework.
2007
We propose a new conceptual model for XML data called XSEM as a combination of several approaches in the area of the conceptual modeling for XML. The model divides the conceptual modeling process of XML data to two levels. On the first level, a designer designs an overall non-hierarchical conceptual schema of a domain. On the second level, he or she derives different hierarchical representations of parts of the overall conceptual schema using transformation operators. These hierarchical representations describe how ...
2009
In this paper we briefly describe a new conceptual model for XML called XSEM. It is a combination of several approaches in the area. It divides the conceptual modeling process to conceptual and structural level. At the conceptual level, we design an overall conceptual schema of a domain independently on the required hierarchical representations of the data in XML documents. At the structural level, we design required hierarchical representations of the modeled data in different types of XML documents. In this paper, we further extend ...
Web Engineering, 2003
This paper presents ADDS, a systematic approach to sofware development using Domain-Specific Languages (DSLs) and markup technologies. XML is used as a common descriptive framework for DSLs formulation, obtaining Domain Specific Markup Languages (DSMLs). According to ADDS, the construction of applications in a domain starts with the provision of suitable DSMLs. Then, the applications in such a domain are described by means of sets of structured documents conforming these DSMLs. Finally, the application is produced by processing this documentation according to an operationalization model called OADDS. Hence ADDS provides a systematic approach to software development based on the processing of XMLdocumentation that can be used in a great variety of domains.
Proceedings of the 2006 ACM symposium on …, 2006
Procedia Computer Science, 2012
Modern information systems may exploit numerous XML formats for communication. Each message may have its own XML format for data representation which causes problems with evolution of their schemas. Manual change management of the XML formats may be error-prone and time consuming. We tackled this problem in our previous work with the introduction of a formal two level conceptual model for XML which interconnects multiple XML schemas describing parts of a common problem domain on a conceptual level. This allows for well-defined and automated change management of XML schemas. In this paper, we extend our previous work with inheritance modeling. Because inheritance is common in XML schemas and conceptual models in general, its modeling is needed and makes our conceptual model more usable in real world situations. There are two basic types of inheritance when it comes to modeling: structural and conceptual inheritance. We discuss the differences and how these two types need to be reflected in our model.
IEEE Intelligent Systems, 2001
XDD 7 is a language that enables representation of Although XML and RDF are widely used languages for Web applications, they have insufficient mechanisms to fulfill the requirements of a Semantic Web. The authors show how XML Declarative Description expands the capabilities of XML and RDF to meet these requirements.
Computer Standards & Interfaces, 2010
2013
In this article the conceptual model EMX (Entity Model for XML-Schema) for dealing with the evolution of XML Schema (XSD) is introduced. The model is a simplied representation of an XSD, which hides the complexity of XSD and oers a graphical presentation. For this purpose a unique mapping is necessary which is presented as well as further information about the visualization and the logical structure. A small example illustrates the relationships between an XSD and an EMX. Finally, the integration into a developed research prototype for dealing with the coevolution of corresponding XML documents is presented.
XML Conference, 2004
Many integration projects today rely on shared semantic models based on standards represented using Extensible Mark up Language (XML) technologies. Shared semantic models typically evolve and require maintenance. In addition, to promote interoperability and reduce integration costs, the shared semantics should be reused as much as possible. Semantic components must be consistent and valid in terms of agreed upon standards and guidelines. In this paper, we describe an activity model for creation, use, and maintenance of a shared semantic model that is coherent and supports efficient enterprise integration. We then use this activity model to frame our research and the development of tools to support those activities. We provide overviews of these tools primarily in the context of the W3C XML Schema. At the present, we focus our work on the W3C XML Schema as the representation of choice, due to its extensive adoption by industry.
Support in the exchange of data, information, and knowledge is becoming a key issue in current computer technology. Ontologies may play a major role in supporting the information exchange processes, as they provide a shared and common understanding of a domain. However, it is still an important question how ontologies can be applied fruitfully to online resources. Therefore, we will investigate the relation between ontology representation languages and document structure techniques (schemas) on the web. We will do this by giving a detailed comparison of OIL, a proposal for expressing ontologies in the Web, with XML Schema, a proposed standard for describing the structure and semantics of XML based documents. We will argue that these two refer to different levels of abstraction, but that, in several cases, it can be advantageous to base a document schema on an ontology. Lastly, we will show how this can be done by providing an translation procedure from an OIL ontology to a specific XML Schema. This will result in a schema that can be used to capture instances of the ontology. 123
This paper provides a formal specification in Z of a conceptual model for an XML document called Graph-Document Type Definition (G-DTD). This model has been used for describing XML documents at the schema level and also assists the user to arrange the content of XML documents. More importantly G-DTD can be used as a tool to simplify the XML document design in a simple and precise way. The specification presented here provides a formal account of the state and operation of this model and a sound basis for instantiations of the model to be built.
2001
MSL (Model Schema Language) is an attempt to formalize some of the core idea in XML Schema. The benefits of a formal description is that it is both concise and precise. MSL has already proved helpful in work on the design of XML Query. We expect that similar techniques can be used to extend MSL to include most or all of XML Schema.
Extensible Markup Language (XML) is a meta-language for defining new languages. Its impact on the modern and emerging web technologies has been (and will be) incredible and it has represented the foundation of a multitude of applications. This chapter is devoted to the presentation of XML and its applications. It provides an introduction to this wide topic, covering the principal arguments and providing references and examples
2002
Abstract Although XML Document Type Definitions provide a mechanism for specifying, in machine-readable form, the syntax of an XML markup language, there is no comparable mechanism for specifying the semantics of an XML vocabulary. That is, there is no way to characterize the meaning of XML markup so that the facts and relationships represented by the occurrence of XML constructs can be explicitly, comprehensively, and mechanically identified. This has serious practical and theoretical consequences.
Recently XML is the standard format used for the exchange of data between information systems and is also frequently applied as a logical database model. If we use XML as a logical database model we need a conceptual model for the description of its semantics. In this paper, we describe our work on a new conceptual model for XML called XSEM created as a combination of several ap- proaches applied in the area of conceptual modeling for XML.
Logics for Emerging Applications of Databases, 2004
Data & Knowledge Engineering, 2005
XML was initially developed for document management, but it is becoming increasingly used for storing and exchanging all kinds of data on the Internet. In this paper, we introduce a design methodology for XML schemas that is based upon well-understood conceptual modeling methodologies. Because XML is hierarchical (tree-structured), many different XML schemas (or document structures) can be generated from the same conceptual database schema. We describe algorithms for generating customized hierarchical views from EER model, creating XML schemas from hierarchical views, generating SQL queries corresponding to the XML schemas, and creating XML instance documents from the query results.
2008
This paper outlines an approach to XML-based software development. According to this method, applications are described using domain specific, XML based, markup languages. With these languages we structure a set of XML documents that are subsequently processed to yield the executable application. The approach also makes an explicit distinction between contents documents and documents describing other application aspects (e.g. interaction, presentation and process). Using a software process model based on markup languages and documents we obtain some benefits such as an important code reuse and a significant maintenance improvement. This paper describes our experiences applying this approach in the hypermedia domain and in the development of an application framework for supporting a broader range of information-based applications.
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