Schema matching for transforming structured documents

Structured document content reuse is the problem of restructuring and translating data structured under a source schema into an instance of a target schema. A notion closely tied with structured document reuse is that of structure transformations. Schema matching is a critical strep in structured document transformations. Manual matching is expensive and error-prone. It is therefore important to develop techniques to automate the matching process and thus the transformation process. In this paper, we contributed in both understanding the matching problem in the context of structured document transformations and developing matching methods those output serves as the basis for the automatic generation of transformation scripts

Description of six scenarios and of the results of six validated trials

Description of six scenarios and of the results of six validated trialsThis deliverable aims at presenting and analysing the processes of elaboration and validation of the PALETTE scenarios. After having defined these two processes and situated them into the PALETTE methodology, the scenarios are presented. For each scenario, the specific methodology of elaboration and validation is described with a special focus on the participation of the concerned Communities of Pratcice (CoPs). Then the results of the validation are presented as well as the reports of their technical feasability and the usability of PALETTE services from a user perspective. Finally we reflect on and we discuss about the whole process of validation of the scenarios and we describe the next steps towards the development of the scenarios and their trilas with the CoPs

Schema matching for structured document transformations

This dissertation studies structured document content reuse problem. In structured document content reuse, a document (or a part of document) structured under one schema must be restructured and translated into an instance of a different schema. Thus, a notion tied to structured document reuse problem is that of structure transformations. This is typically attained in real world by writing translators encoded on a case-by-case basis using specific transformation languages. Writing and managing complex transformations programs is time consuming and generally requires programming skills. Many solutions to simplify and automate as much as possible the task of structured document transformation specification and execution have been proposed. Several simpler and highly declarative transformation languages and graphical tools for transformation specifications have been introduced as solutions to avoid programming. These languages and tools are very useful in describing and specifying transformations. However, they still require developers to manually indicate mappings for each source and target pair. The manual generation of mappings is an extremely labor-intensive and error-prone process. To shield users from manually performing this task, we advocate the use of a schema matching process which (semi) automatically finds semantic correspondences, so called mappings, between two heterogeneous schemas. Based on such mappings a transformation generator generates automatically the translation program. In this dissertation, we propose a framework for solving XML schema matching problem. We rely on the extraction of semantic information nested within XML structures. Semantics is first captured by making explicit element names meanings, exploiting several element characteristics including the analysis of XML Schema's designer point of view expressed by the logical organisation of XML content and additional semantic information given by means of features such as datatypes, element constraints and inheritance mechanisms. The proposed framework provides a generic view and formalizes the overall matching process. Our proposed solutions allows to (1) discover semi-automatically an efficient sequence of operations for transforming a source XML schema into a target XML schema using schema matching techniques (2) model discovered mappings and (3) generate automatically the transformation script. Note that the purpose of our work is not to replace the programming languages for XML data translations, but rather to complement them. Experiments we have conducted show that we have been able to achieve good performance for the generation of source-to-target mappings

Réifier et réutiliser les pratiques d'enseignement : développement participatif d'un scénario et de services pour les communautés de pratique

National audienceCet article décrit et évalue un scénario de réification et de réutilisation de pratiques professionnelles ainsi que les services interopérables supportant le scénario développés en appliquant une méthode de design participatif. Après avoir présenté le contexte de la recherche et décrit la méthode de design participatif appliquée et ses principaux instruments, le scénario de réification, et les services développés sont tout d'abord présentés et ensuite évalués dans le cadre d'une communauté d'enseignant-e-s de l'enseignement supérieur. En conclusion, des pistes de développement sont proposées tant au niveau des supports aux apprentissages que des solutions technologiques. Enfin, un retour critique est proposé sur la méthode de design participatif, ses conditions de mise en œuvre et ses résultats

Categorization of tools and pedagogical approaches related to collaborative learning and CoPs

PALETTE deliverable - report number D.PAR.02 - 155 pagesThis deliverable presents a categorization of tools and a clarification of the notion of "scenario". It presents some existing taxonomies. The tools inventory and the proposed categorization focus on a user perspective. It takes into account data collected from CoPs, from PALETTE's partners and from the existing literature

Categorization of tools and pedagogical approaches related to collaborative learning and CoPs

PALETTE deliverable - report number D.PAR.02 - 155 pagesThis deliverable presents a categorization of tools and a clarification of the notion of "scenario". It presents some existing taxonomies. The tools inventory and the proposed categorization focus on a user perspective. It takes into account data collected from CoPs, from PALETTE's partners and from the existing literature

Description of six scenarios and of the results of six validated trials

Description of six scenarios and of the results of six validated trialsThis deliverable aims at presenting and analysing the processes of elaboration and validation of the PALETTE scenarios. After having defined these two processes and situated them into the PALETTE methodology, the scenarios are presented. For each scenario, the specific methodology of elaboration and validation is described with a special focus on the participation of the concerned Communities of Pratcice (CoPs). Then the results of the validation are presented as well as the reports of their technical feasability and the usability of PALETTE services from a user perspective. Finally we reflect on and we discuss about the whole process of validation of the scenarios and we describe the next steps towards the development of the scenarios and their trilas with the CoPs