VVallet: virtual document holder based on scalability and high-availability quality attributes

• Autor(a) principal: Gonçalves, Pedro Miguel Miranda
• Data de Publicação: 2022
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10773/38903
• topic: Container technologies; Database; DNS; Failure recovery; High availability; Horizontal scalability; Load balance; Virtual machines; Web application

Nowadays, there is a growing habit of having everything one needs on their smartphone. It is possible to make phone calls, watch videos, pay for services or send money, among many other options. However, there is still no solution that allows a user to consult and manage any type of documents, such as the citizen card, driver’s license, credit card, invoices, or warranties, among others, virtually, in an easy and organized way, anytime that is necessary. The objective of this master’s dissertation is to answer this problem, emphasizing scalability and availability. It is intended to make a dynamic web application which allows for new documents to be easily added as models. It is also an aim that the database and the application are horizontally scalable and of high availability. This application assumes the existence of two entities: the administrator(s), which can create the document models with the necessary fields for their validation; and the regular users, who can fill these documents as they need, and save them in their accounts. The users can, then, view their documents whenever necessary, and on any device, as long as they have access to a web browser and Internet. In addition to the organizational potential of the application, in which a user can store the documents with a chosen subtype, it also provides the possibility to receive an email, regarding the document caducity date. In this work, both the database and the tools to implement the application were specially important, so as to attain the expected scalability and high availability.