No abstract

O processo de utilização de microsserviços no desenvolvimento de aplicações permite que estes microsserviços sejam distribuídos em diferentes provedores de nuvem de forma independente, porém gerando uma impressão que estão implantados em um único serviço. Dessa forma a utilização de microsserviços ganha força no mercado, possuindo uma maior predominância nas grandes corporações. O presente trabalho tem como objetivo avaliar o desempenho de um sistema que utiliza arquitetura de microsserviços implantada em múltiplas nuvens. Para os experimentos foram utilizados três provedores diferentes, AWS (Amazon Web Services), Google Cloud e Azure, todas as instâncias funcionam de forma independente. Os experimentos foram realizados com a aplicação de forma centralizada e distribuída. Os resultados mostram o desempenho para os cenários avaliados e as particularidades de cada um deles.

The study investigated the impact of exchange rate fluctuation on selected economic sectors of the Nigerian economy. The study covered the agricultural (AGDP), manufacturing (MGDP), petroleum (PGDP) and service sector (SGDP) of the Nigerian economy. The petroleum sector represented the oil sector while the agricultural (AGDP), manufacturing (MGDP), and service sector (SGDP) represented the non-oil sector. The main objective of the study was to determine whether exchange rate fluctuations had a significant impact on the selected sectors of the economy. These sectors were invariably the largest contributors to the GDP. The time scope covered 1981-2016. Data for the study were obtained specifically from CBN statistical bulletin (2016). The data were analysed using the Auto Regressive Distributed Lagged (ARDL) model. The study concluded that there was no significant impact of exchange rate on AGDP, MGDP and SGDP respectively. However, there was a positive and significant impact of exchange rate on PGDP. The study recommended that Nigeria"s economy should be diversified to enable the non-oil sector to become significant foreign exchange earners. Contribution/Originality: This study contributes to the existing literature by unbundling Nigeria"s economy into its component sectors and determining the impact of exchange rate fluctuations on each sector. This study uses a relatively new estimation methodology of Auto-Regressive Distributed Lagged model (ARDL). This study originates a new formula which integrates lagged variables into the model.