Informação Clínica em Tempo Real

Abstract

The Web, in its early days, was mostly comprised of pages whose content was static, although the content of some web pages was dynamically generated by external tools to the Web server. Moreover, the page content was updated only when the user reloaded the web page. However, in the process of migration of standalone applications to the web, there was the need to develop techniques and technologies that, originally, could change the web page content without having to reload it manually and thus showing real time information. Because of the ease with which it is implemented and the excellent results it obtains, the companies, in the most diverse areas, began using polling to update the information in the web applications they developed. Polling is a technique that, thanks to a large number of HTTP requests made by the client in a short time, gives the idea to the user that is the server that informs the client about the updates that are happening. The increase in users and the reliability of information required in some web applications made the polling limitations being exposed. The main problems associated to the use of polling are connected to a decrease in the server performance and the increase in the network traffic. These two limitations may lead to the information reaches the client with significant delay or, in extreme cases, end up not reaching the client. In an area as sensitive as is the area of health, there cannot be information gaps because it can mislead health professionals, which can end up compromising the health of hospitalized patients. For this work, the first goal is to research all the techniques that allow a web application showing real-time information. Starting with the research carried out and analyzing the advantages and disadvantages of the various techniques, the second goal consists in choosing a technique to solve the problems encountered. Taking for base the chosen technology, the third objective is to implement one module that will allow Glintt systems show real time information in a more effective and efficient way without making lots of changes in the current system. Finally, the last goal is the adaptation of an existing web application to be used to evaluate and test the deployed module.