483 research outputs found

    ICD Management (ICDM) tool for embedded systems on aircrafts

    Get PDF
    International audienceIn the scope of on-board systems development and integration for aircrafts, ICDs (Interface Control Document/Description) are fundamental sources of information at same level that the functional requirements. ICD description must include feasible (bus capacity not exceeded, processing load under specific limits) and accurate (data precision, data retransmission rate, data consistency) inter-connectivity mechanisms, to support the application requirements needs, as well as the information must be easy to update and to maintain.On the other hand, DOORS (IBM) is a tool specialized on requirements management. It faces with aspects as traceability, version control, security (access control), changes control, data persistency and accessibility. DOORS is widely used and it is recognized as a reference tool in the scope of aeronautic developments.Nevertheless, ICD information usually is not managed with DOORS. The reason can be found in the specificities of the nature of ICD information, which suggests other approaches more suitable than DOORS.The alternative approaches are very diverse but most of them focus on handling information typified according to specific meta-models for ICD: databases, customized spreadsheets, and tabular descriptions. But whatever is the solution, it must address also, by its own means, the features of ICD derived of its “requirement nature”.This paper presents a solution based on the integration of DOORS with a user front-end developed with Model Driven Architecture (MDA) and Open Source technologies. It is intended to provide means to manage ICD data in a robust way (guaranteeing the correctness -syntactic, completeness, non ambiguity- of data, changes, versions, dependencies, ...) and additionally, to provide mechanisms to focus the effort on the data transformation rather than on the manual elaboration of derived artefacts

    Transformation of WSDL files using ETL in the E-orientation domain

    Get PDF
    The E-orientations platforms become an essential space for students to base their choice on tangible elements, as they offer a macroscopic view of the different academic and professional fields. In this context the Center for Engineering Sciences and Applied Sciences “SISA” funded the MMS Orientation project to focus on student orientation in Morocco. With respect to the peculiarity and the different characteristics of the E-orientation platforms, a comparative study is essential. In this article we will proceed by a comparative study of a sample of platforms in order to highlight the major functionalities that we will model through descriptive files. The work is divided into two parts: The first part will be a comparison and description of existing platforms using descriptive language (WSDL), the second part will use ETL as a transformation technology in order to highlight generic files that will serve as a basis for work. the expected meta model

    XML Integrated Environment for Service-Oriented Data Management

    Get PDF
    The proliferation of XML as a family of related standards including a markup language (XML), formatting semantics (XSL style sheets), a linking syntax (XLINK), and appropriate data schema standards have emerged as a de facto standard for encoding and sharing data between various applications. XML is designed to be simple, easily parsed and self-describing. XML is based on and support the idea of separation of concerns: information content is separated from information rendering, and relationships between data elements are provided via simple nesting and references. As the XML content grows, the ability to handle schemaless XML documents becomes more critical as most XML documents do not have schema or Document Type Definitions (DTDs). In addition, XML content and XML tools are often required to be combined in effective ways for better performance and higher flexibility. In this research, we proposed XML Integrated Environment (XIE) which is a general-purpose service-oriented architecture for processing XML documents in a scalable and efficient fashion. The XIE supports a new software service model that provides a proper abstraction to describe a service and divide it into four components: structure, connection, interface and logic. We also proposed and implemented XIE Service Language (XIESL) that can capture the creation and maintenance of the XML processes and the data flow specified by the user and then orchestrates the interactions between different XIE services. Moreover, XIESL manages the complexity of XML processing by implementing an XML processing pipeline that enables better management, control, interpretation and presentation of the XML data even for non-professional users. The XML Integrated Environment is envisioned to revolutionize the way non-professional programmers see, work and manage their XML assets. It offers them powerful tools and constructs to fully utilize the XML processing power embedded in its unified framework and service-oriented architecture

    The semantic Web : theories, languages, and applications

    Get PDF
    La popularitĂ© croissante du Web permet la diffusion d’une quantitĂ© phĂ©nomĂ©nale d’information de toutes sortes et l’accĂšs Ă  une panoplie de services en ligne en raison du dĂ©veloppement effrĂ©nĂ© de ses contenus et de leur consultation quotidienne Ă  faible coĂ»t. Malheureusement, cette explosion du Web cause un problĂšme de surabondance de donnĂ©es pas toujours crĂ©dibles et souvent inutilisables; les rĂ©ponses obtenues des engins de recherche peuvent ĂȘtre inadĂ©quates ou imprĂ©cises et les services en ligne sont exclusifs ou incompatibles entre eux. Dans le but de pallier Ă  ces inconvĂ©nients, le consortium W3C a proposĂ© une solution globale, connue sous le nom de Web sĂ©mantique, qui amĂ©liore les structures de reprĂ©sentation des donnĂ©es de façon Ă  rendre les contenus signifiants et Ă  permettre l’infĂ©rence de nouvelles connaissances par des programmes. Ce mĂ©moire explore les thĂ©ories sous-jacentes au Web sĂ©mantique ainsi que les technologies qui lui sont propres. D’une part, les concepts de logique descriptive et de structure ontologique sont prĂ©sentĂ©s et des liens sont Ă©tablis entre eux. D’autre part, une hiĂ©rarchie de langages incluant, entre autres, les langages XML, RDF, DAML+OIL et OWL est introduite ainsi qu’une Ă©tude comparative de plusieurs moteurs d’infĂ©rence basĂ©s sur ces langages. Enfin, ce mĂ©moire prĂ©sente un exemple complet qui permet d’illustrer les principaux concepts du Web sĂ©mantique et d’évaluer la faisabilitĂ© de la mise en oeuvre d’une application par rapport Ă  l’état actuel des technologies

    Applying Analogical Reasoning Techniques for Teaching XML Document Querying Skills in Database Classes

    Get PDF
    XML has become the most ubiquitous format for exchange of data between applications running on the Internet. Most Web Services provide their information to clients in the form of XML. The ability to process complex XML documents in order to extract relevant information is becoming as important a skill for IS students to master as querying relational databases. But the language for querying XML documents is very different from SQL, which is the query language that IS students typically learn in their database courses. Nevertheless, the database course seems to be the most plausible venue for teaching XML document querying, given the IS 2010 model curriculum. Unfortunately, there are time limitations that may prevent deep coverage of XML in the typical database class. Analogical pedagogy may provide a means to quickly provide significant XML query skills to students who are already familiar with SQL query mechanics. This paper describes a simple but effective way of incorporating XML querying within the broader database course content by making use of analogical reasoning

    Technologies that assess the location of physical activity and sedentary behavior: a systematic review

    Get PDF
    Background: The location in which physical activity and sedentary behavior are performed can provide valuable behavioral information, both in isolation and synergistically with other areas of physical activity and sedentary behavior research. Global positioning systems (GPS) have been used in physical activity research to identify outdoor location; however, while GPS can receive signals in certain indoor environments, it is not able to provide room- or subroom-level location. On average, adults spend a high proportion of their time indoors. A measure of indoor location would, therefore, provide valuable behavioral information. Objective: This systematic review sought to identify and critique technology which has been or could be used to assess the location of physical activity and sedentary behavior. Methods: To identify published research papers, four electronic databases were searched using key terms built around behavior, technology, and location. To be eligible for inclusion, papers were required to be published in English and describe a wearable or portable technology or device capable of measuring location. Searches were performed up to February 4, 2015. This was supplemented by backward and forward reference searching. In an attempt to include novel devices which may not yet have made their way into the published research, searches were also performed using three Internet search engines. Specialized software was used to download search results and thus mitigate the potential pitfalls of changing search algorithms. Results: A total of 188 research papers met the inclusion criteria. Global positioning systems were the most widely used location technology in the published research, followed by wearable cameras, and radio-frequency identification. Internet search engines identified 81 global positioning systems, 35 real-time locating systems, and 21 wearable cameras. Real-time locating systems determine the indoor location of a wearable tag via the known location of reference nodes. Although the type of reference node and location determination method varies between manufacturers, Wi-Fi appears to be the most popular method. Conclusions: The addition of location information to existing measures of physical activity and sedentary behavior will provide important behavioral information

    Association Rules for Web Data Mining in WHOWEDA

    Get PDF
    The authors discuss association rules which can be discovered from Web data. The association rules are discussed within the scope of our WHOWEDA (warehouse of Web data) project. WHOWEDA is supported by a Web data model and a set of algebraic operators. The Web data model allows a uniform and integrated view of Web data gathered using a user\u27\u27s query graph. A user\u27\u27s query graph describes the query by example (what the user perceives as the query) and the Web coupling query gathers instances of such a query graph from the Web and stores them in the form of subgraphs (called Web tuples) in a Web table. We discuss association rules within this domain. An association rule defines an association between the nodes and links attributes of Web tuples within a Web table. There are two different classes of association rules that can be developed from data in a Web table. There are two different classes of association rules that can be developed from data in a Web table. Node-to-node associations are those rules that relate the content (defined by metadata attributes) between two or more nodes within a Web tuple. Link associations are rules that show the connectivity of different URLs. Distinguishing the two types of associations provides a view of the structure of the Web data. The goal of performing Web association mining on Web data is to better organize searching patterns through hyperlinked document

    Integrating data warehouses with web data : a survey

    Get PDF
    This paper surveys the most relevant research on combining Data Warehouse (DW) and Web data. It studies the XML technologies that are currently being used to integrate, store, query, and retrieve Web data and their application to DWs. The paper reviews different DW distributed architectures and the use of XML languages as an integration tool in these systems. It also introduces the problem of dealing with semistructured data in a DW. It studies Web data repositories, the design of multidimensional databases for XML data sources, and the XML extensions of OnLine Analytical Processing techniques. The paper addresses the application of information retrieval technology in a DW to exploit text-rich document collections. The authors hope that the paper will help to discover the main limitations and opportunities that offer the combination of the DW and the Web fields, as well as to identify open research line

    Development of a breech-specific integrated care pathway for pregnant women: Protocol for a mixed methods study

    Get PDF
    Background: The development of an integrated care pathway with multidisciplinary input to standardize and streamline care for pregnant women experiencing breech presentation at 36 or more weeks of gestation poses several challenges because of the divisive and contentious nature of the phenomenon. Although many clinicians are interested in obtaining the skills required to safely support women desiring a vaginal breech birth, the primary trend in most health care facilities is to recommend a cesarean section. Objective: This paper aims to discuss the mixed methods approach used in a doctoral study conducted to generate new knowledge regarding women’s experiences of breech birth in Western Australia and professional recommendations regarding the care of women experiencing breech presentation close to or at term. This study was designed to inform the development of an integrated care pathway for women experiencing a breech presentation. This mixed methods approach situated within the pragmatic paradigm was determined to be the optimal way for incorporating multidisciplinary recommendations with current clinical practice guidelines and consumer feedback. Methods: A mixed methods study utilizing semistructured interviews, an electronic Delphi (e-Delphi) study, and clinical practice guideline appraisal was conducted to generate new data. The interviews were designed to provide insights and understanding of the experiences of women in Western Australia who are diagnosed with a breech presentation. The e-Delphi study explored childbirth professionals’ knowledge, opinions, and recommendations for the care of women experiencing breech presentation close to or at term. The clinical practice guideline appraisal will examine the current national and professional breech management and care guidelines. This study has the potential to highlight areas in practice that may need improvement and enable clinicians to better support women through what can be a difficult time. Results: Data collection for this study began in November 2018 and concluded in March 2020. Data analysis is currently taking place, and the results will be disseminated through publication when the analysis is complete. Conclusions: The results of this study will guide the development of an integrated care pathway for women experiencing a breech presentation close to or at term, with the hope of moving toward standardized breech care for women in Western Australia. This study protocol has the potential to be used as a research framework for future studies of a similar nature
    • 

    corecore