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Vers un entrepôt de données et des processus : le cas de la mobilité électrique chez EDF

Abstract : Nowadays, the electrical vehicles (EV) market is undergoing a rapid expansion and has become ofgreat importance for utility companies such as EDF. In order to fulfill its objectives (demand optimization,pricing, etc.), EDF has to extract and analyze heterogeneous data from EV and charging spots. Inorder to tackle this, we used data warehousing (DW) technology serving as a basis for business process(BP). To avoid the garbage in/garbage out phenomena, data had to be formatted and standardized.We have chosen to rely on an ontology in order to deal with data sources heterogeneity. Because theconstruction of an ontology can be a slow process, we proposed an modular and incremental constructionof the ontology based on bricks. We based our DW on the ontology which makes its construction alsoan incremental process. To upload data to this particular DW, we defined the ETL (Extract, Trasform& Load) process at the semantic level. We then designed recurrent BP with BPMN (Business ProcessModelization & Notation) specifications to extract EDF required knowledge. The assembled DWpossesses data and BP that are both described in a semantic context. We implemented our solutionon the OntoDB platform, developed at the ISAE-ENSMA Laboratory of Computer Science and AutomaticControl for Systems. The solution has allowed us to homogeneously manipulate the ontology, thedata and the BP through the OntoQL language. Furthermore, we added to the proposed platform thecapacity to automatically execute any BP described with BPMN. Ultimately, we were able to provideEDF with a tailor made platform based on declarative elements adapted to their needs.
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Submitted on : Tuesday, May 12, 2015 - 2:32:06 PM
Last modification on : Wednesday, October 20, 2021 - 3:22:23 AM
Long-term archiving on: : Monday, September 14, 2015 - 11:12:16 PM


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  • HAL Id : tel-01151120, version 1



Kevin Royer. Vers un entrepôt de données et des processus : le cas de la mobilité électrique chez EDF. Autre [cs.OH]. ISAE-ENSMA Ecole Nationale Supérieure de Mécanique et d'Aérotechique - Poitiers, 2015. Français. ⟨NNT : 2015ESMA0001⟩. ⟨tel-01151120⟩



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