Acesso a base de dados via internet

Abstract

The breaking down of important technological barriers in the field of information technologies, experienced in recent decades, has enabled the implementation of dynamic and automated information services that have contributed, in recent years, to the creation of a new environment for accessing and exchanging information on a scale global, which leads to a clear and irreversible trend towards the development of information systems based on Web technologies to allow interoperability between information systems or publication on the Internet. Recognizing the importance and impact of Web-based technologies, this work aims to evaluate Web tools and technologies, and create a model and prototype that allows direct and universal access to a remote database via the Internet. The proposed work comprises ten chapters. The first one introduces the topic discussed and presents its objectives. The second describes the materials and methods used to achieve the stated objectives. The third one presents important concepts about the Internet such as: definition, philosophy and reasons for its use. The fourth describes a set of tools necessary for the development of a Web application of the Browser(Web)/Server (database) type. The fifth, describes the environment (site server) needed to house the web application. The sixth, addresses three important aspects of managing the operation of the web application and the site server: load balancing and fault tolerance, tracking user status and order management. The constraints generally caused by the loss of confidentiality and various attacks on a virtually free and easily accessible network motivated the seventh chapter, which presents a set of technical solutions to ensure a more secure environment. The eighth chapter presents the model (site server) necessary to support the web application(s). The ninth presents the implementation of a website with the main objective of implementing and simulating the assumptions described in the previous chapters. The tenth and last chapter presents the conclusions and final recommendations. (TRADUÇÃO NOSSA)