3.5 User's Guide to the application's

Figure 12 - Main Menu

Figure 12 shows the main menu. Design of the application is made as simple and minimalistic since that application is designed for different age groups.

Figure 13 - Registration

Figure 13 shows the registration page. To register, you need only 3 types of information for the user's convenience. Simple registration and simple design of application increases usability of application.

Figure 14 - An authorized user

Figure 14 shows a page of authorized user. Button «save» saves the data, the button «backup» loads contacts on the phone, the button «logout» logouts and the «Call without backup» can be seen in Figure 15

4. Economic Part

The aim of the diploma project is to develop a unique application that will store the contact data to an external server. This data will be accessed via any phone running on OS Android. User can just download the data to the phone or call directly without closing the application by pressing name of contact in application.

4.1 Economic efficiency

Economic efficiency is to get the maximum possible benefits from the available resources. To do this constantly you must correlate benefits and costs or to put it another way, to behave rationally. Rational behavior is that the producer and consumer goods tend to highest efficiency and to maximize this benefit and minimize costs.

An important part of the efficiency of the economic system is the efficiency of capital investments. It is expressed as the ratio of the obtained effect to the capital investments that caused this effect. The effectiveness of capital investments measured set of indicators, which includes the overall effect of capital investment, the rate of return, payback period, the comparative effectiveness and other indicators of economic efficiency of capital investments are used to compare alternative investment projects and choosing the best project.

A rather large role in the economic process (whether economical software or not) depends on the programmers creating this software. Then play the role of the creation, debugging, and operation of the program.

4.2 Android Market

Android Market is a digital application distribution platform for Android and an online electronics store developed and maintained by Google. The service allows users to browse and download music, magazines, books, movies, television programs, and applications published through Google. Users can also purchase Chromebooks and Google Nexus-branded mobile devices through Google Play.

Applications are available either for free or at a cost. They can be downloaded directly to an Android or Google TV device through the Play Store mobile app, or by deploying the application to a device from the Google Play website. These applications are generally targeted to users based on a particular hardware attribute of their device, such as a motion sensor (for motion-dependent games) or a front-facing camera (for online video calling).

This application will be spread in this market. All users with OS Android can download this application in there via internet. First year app will be for free, but in next the years cost of app will be 1$.