Design and Implementation of An Architecture for Electronic Billing Through Web Services and Mobile Devices

Abstract

Electronic billing comes in response to both the needs of businesses and legal foundations defined by regulators, with an increasingly vital importance given a society that becomes more digitally based with each passing day. Electronic billing became possible in Ecuador in 2014, and in 2015, telecommunications companies and exporters began using the service, followed by public sector entities. Soon, all taxpayers are expected to apply electronic billing options. Given the incredible growth in these billing services, an application for Android mobile devices was analyzed, designed, and implemented. This application includes an architecture that integrates electronic signature processes, web services for receiving and authorizing electronic documents, with the generation, distribution, and storage of electronic vouchers over modern and user-friendly interfaces. MobileD methodology was applied because of its agility and special focus on the mobile device market, as it applies techniques and processes that are both well-known and consolidated. Using test-driven development, 82 unit tests and 6 integration tests were made to correct errors, and 113 acceptance tests were implemented among 8 users to verify all of the system’s functionalities and ensure that they system conformed to user’s needs.