Android as a Cloud Ticket Validator

In this paper we describe the development of a productive validation device in a mobile platform, to achieve a low cost ticketing device public transport passenger. This work is integrated in the project Smart CITIES Cloud Ticketing from Link Consulting SA, used to propose a multi-tenancy implementation of ticketing terminals. Additionally, it was introduced the "thin device" concept which allows to move the traditional ticketing operations to cloud platform, allowing that way to increase elasticity and interoperability issues. The device created is a prototype of this validation ticketing device with the validation services in a cloud platform (Amazon Web Services). Physically, the prototype consists in validator running on a tablet with Android operating system, but the validation logic remains out of the device in a service basis. Part of this result it\´s being used in production environment by the company Link.