Developing application software for mobile devices requires considering the constrains of these devices. Mobile devices run on battery and have less powerful processors than personal computers. Developers also have to consider a lengthy array of screen sizes, hardware specifications and configurations because of intense competition in mobile software and changes within each of the platforms. Mobile application development requires use of specialized integrated development environments made. Mobile applications are first tested within the development environment using emulators and later subjected to field testing. Emulators provide an inexpensive way to test applications on mobile jphones to which developers may not have physical access.
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