Impact of the Four Quality "Training, Service, Information System and Information" on the Use of Information System in an Information-Intensive Sector

Today, information is crucial and the flow of information is becoming more and more numerous, so their management is delicate, hence the need to use an information system that supports all production systems, and the majority of competitive advantages is achieved through the intelligent use of these information systems.It is in this context of disrupted information that the use of information systems is necessary in organizations, as they have greatly influenced the ways of work and management. For this purpose, they allow easy access to relevant information in quantity and in real time, the rapidity of analyzing this information and the possibilities for dissemination and exchange between the partners, without forgetting the possibilities for storage and archiving in a more secure way than human intervention could.The study examines the impact of quality of training, service quality, information system quality and information quality on the use of an information system. A quantitative study is conducted to test these effects, the findings of this research are mainly comprised by three facts: (1) the use of information systems is obligatory in the context of intensive information. (2) Voluntary or mandatory use status must be specified in the analysis, (3) there is no specific antecedent to the act of use of IS in the retail secto

Les systèmes d'information comme leviers de la performance logistique

Au cours des dernières années, la relation entre la performance logistique et l‘utilisation des systèmes d‘information a été étudiée conceptuellement et empiriquement dans la littérature. Cette relation trouve toute sa pertinence avec l‘avènement des nouvelles technologies de l‘information et de la communication.  A travers cet article, nous visons à explorer les liens entre l’usage des systèmes d’information et la performance logistique. Dans un premier lieu nous allons présenter la place du système d’information dans l’organisation, le premier axe met en lumière le concept du système d’information et avance un ensemble de définitions. Le second axe met l’accent sur les systèmes d’information utilisés dans une chaine logistique avec la notion du partage d’informations. Enfin, le dernier axe avance une synthèse de travaux montrant la relation entre l’usage des systèmes d’information et la performance logistique

L’impact Des Systèmes D’information Sur La Performance Des Chaines Logistiques: Une Revue De Littérature

In the context of global competition which is characterized by a variety of products, short life cycles, and a competitive pressure between the supply chains, the cooperation and collaboration between companies has become very crucial. These collaborative relations improve the coordination of activities within the supply chains and have resulted to a higher performance through the use of information systems. These information systems have enabled it to face the rise in the complexity of the logistics sector which was born out of the information. To better position our contribution, we made a review of the literature and defined the variables and the hypotheses of this research work

PCA-based detection of phosphorous deficiency in wheat plants using prompt fluorescence and 820 nm modulated reflection signals.

Phosphorus deficiency induces biochemical and morphological changes which affect crop yield and production. Prompt fluorescence signal characterizes the PSII activity and electron transport from PSII to PSI, while the modulated light reflection at 820 (MR 820) nm investigates the redox state of photosystem I (PSI) and plastocyanin (PC). Therefore, combining information from modulated reflection at 820 nm with chlorophyll a fluorescence can potentially provide a more complete understanding of the photosynthetic process and integrating other plant physiological measurements may help to increase the accuracy of detecting the phosphorus deficiency in wheat leaves. In our study, we combined the chlorophyll a fluorescence and MR 820 signals to study the response of wheat plants to phosphorus deficiency as indirect tools for phosphorus plant status characterization. In addition, we studied the changes in chlorophyll content index, stomatal conductance (gs), root morphology, and biomass of wheat plants. The results showed an alteration in the electron transport chain as a specific response to P deficiency in the I-P phase during the reduction of the acceptor side of PSI. Furthermore, P deficiency increased parameters related to the energy fluxes per reaction centers, namely ETo/RC, REo/RC, ABS/RC, and DIo/RC. P deficiency increased the values of MRmin and MRmax and decreased νred, which implies that the reduction of PSI and PC became slower as the phosphorus decreased. The principal component analysis of the modulated reflection and chlorophyll a fluorescence parameters, with the integration of the growth parameters as supplementary variables, accounted for over 71% of the total variance in our phosphorus data using two components and provided a reliable information on PSII and PSI photochemistry under P deficiency