WWW/Internet - Portal do Software Público Brasileiro

ISBN: 978-972-8939-25-0 © 2010 IADISAdvertisers’ Subscription - In order to access the advertiser’s section on the website, users need to signup as advertisers. This will be done through a user friendly form where basic information will be requested.Advertisements based on Location - Each advertiser will be able to create advertisements based on location.This will be done by having a map and advertisers will just drag a marker on the advertising zone.The co-ordinates will be recorded by the system automatically. The advertiser then will just need to enter theadvertising text based on the location he has chosen.Advertisement Categories - A list of predefined categories will be already available in the system. Thesecategories will help advertisers to categorize their adverts in one or more categories.Subscribers Information and Preferences - In order to make use of the system, users are required tosubscribe and choose their preferences. These preferences include their mobile number, the choice of categoriesthat they wish to subscribe to, the maximum number of adverts they wish to receive daily.Mobile Application to track position - An application which will be installed on the subscribers’ phones(more specifically BlackBerry phones) will be developed to track the co-ordinates or the users and send theseco-ordinates to the system. The application will prompt the subscriber for the username and password so thatit will identify him/her.Advert messaging platform - SMS will be used to deliver advertisements. The messaging platform willbe triggered every time the application sends a set of co-ordinates that are located in an advertising zone.When this happens, an SMS containing the advertisement text will be sent to the mobile phone found in theadvertising zone.Having listed and described the various specifications required by the system, in Figure 1 we can see aconceptual design that defines the structure and behavior of the system.2.2 Mobile Application DesignFigure 1. System ArchitectureApplications designed for BlackBerry devices should provide a balance between the best possible user experienceand a long battery life. The aim of the application is not to boast a cool user interface, but to have anapplication that when started, runs in the background and send data at intervals through a wireless networkavailable to the system database. The application focuses to identify the position of the user by checking theposition of the device using the integrated GPS. These fundamental characteristics were identified during thedesign stage and which were of use during the implementation phase: A smaller screen size that can display a limited number of characters; Slower processor speeds; Wireless network connections with a longer latency period than standard LANs; Less available memory; Shorter battery life; One screen at a time.410