8 research outputs found

    Automatic Generation of Interoperability Connectors using Software Product Lines Engineering

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    International audienceInformation Systems (ISs) of modern companies must be reactive and capable to communicate with third-party IS. It is, therefore, necessary to establish agile interoperability between information systems. For this purpose, connectors are used to ensure interactions between IS components. However, components are independently designed and conform to different technical and domain standards that are continuously evolving. Given that the connectors are often developed manually and are not reusable in most cases, establishing and maintaining interoperability becomes a major challenge. In this paper we propose an approach to automatically generate connectors, using software product line engineering to reuse common features and better manage variability. A metamodel of the connector is proposed to show that they can be considered as first-class entities. An industrial case study followed by a discussion is proposed to demonstrate the feasibility of our approach

    Modeling climate change effects on the potential production of French plains forests at the sub-regional level

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    International audienceWe modeled the effects of climate change and two forest management scenarios on wood production and forest carbon balance in French forests using process-based models of forest growth.We combined data from the national forest inventory and soil network survey, which were aggregated over a 50 × 50-km grid, i.e., the spatial resolution of the climate scenario data. We predicted and analyzed the climate impact on potential forest production over the period 1960–2100. All models predicted a slight increase in potential forest yield until 2030– 2050, followed by a plateau or a decline around 2070–2100, with overall, a greater increase in yield in northern France than in the south. Gross and net primary productivities were more negatively affected by soil water and atmospheric water vapor saturation deficits in western France because of a more pronounced shift in seasonal rainfall from summer to winter. The rotation-averaged values of carbon flux and production for different forest management options were estimated during four years (1980, 2015, 2045 and 2080). Predictions were made using a two-dimensional matrix covering the range of local soil and climate conditions. The changes in ecosystem fluxes and forest production were explained by the counterbalancing effect of rising CO2 concentration and increasing water deficit. The effect of climate change decreased with rotation length from short rotations with high production rates and low standing biomasses to long rotations with low productivities and greater standing biomasses. Climate effects on productivity, both negative and positive, were greatest on high fertility sites. Forest productivity in northern France was enhanced by climate change, increasingly from west to east, whereas in the southwestern Atlantic region, productivity was reduced by climate change to an increasing degree from west to east

    Workshop Tunisie

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    Mahdia, ville millénaire tunisienne à l’âme marine, s’interroge sur le devenir de sa pierre. Son développement urbain côtoie aujourd’hui un nouvel horizon : la ligne de crête d’un ancien cordon littoral où se situent ses carrières. Exploitées, appropriées comme jardin nourricier et également délaissées, celles-ci s’intègrent au devenir de la ville. À peine visible de l’espace urbain, ces carrières ne sont pas des lieux communs. Elles font partie de son histoire. Le défi actuel est qu’elles contribuent aux desseins de cette ville, à son renouveau. Fruit d’une expérience internationale originale qui réunit étudiants, professeurs et experts en architecture de paysage, en architecture, en urbanisme et en études touristiques, ce livre raconte le travail d’expérimentation sur la réhabilitation paysagère des carrières de Mahdia. Misant sur l’apport créatif d’un arrimage culturel entre le Maghreb, le Moyen-Orient, l’Europe et l’Amérique du Nord, le workshop ravive les natures bien singulières des carrières et de leurs contextes. Et surtout, il expose un ensemble d’intentions en vue de leur mise en valeur et de leur développement. Véritable legs pour les citoyens de cette ville méditerranéenne, l’invention paysagère des carrières de Mahdia livre des solutions d’aménagement inédites en quête d’un lendemain
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