Mobile computing is considered as low-end computing systems. It currently dominates almost all aspects of our lives from mobile banking to mobile purchasing to mobile skypeing, etc. With the increasing demand of smart phones in today's world, making the system secure is very important. Software architecture plays an important role to achieve both functionalities and quality (e.g., security) of a system. This paper surveys the software architecture of five of the leading mobile operating systems such as Android (Linux), Blackberry, iPhone (Mac OS X), Symbian, and Windows Mobile. Our survey study indicates that Android is the most promising of al and identifies security issues with Android. The paper then proposes improved software architecture to resolve these issues. More specifically, our proposed software architecture attempts to enhance the security of Android without comprising it performance.
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机译：移动计算被认为是低端计算系统。当前，它在我们生活的几乎所有方面都占据着主导地位，从移动银行业务到移动购买到移动Skypeing等。随着当今世界对智能手机的需求不断增长，使系统安全至关重要。软件体系结构在实现系统的功能和质量（例如，安全性）方面起着重要的作用。本文调查了五个领先的移动操作系统的软件体系结构，例如Android（Linux），Blackberry，iPhone（Mac OS X），Symbian和Windows Mobile。我们的调查研究表明，Android是最有前途的，并确定了Android的安全性问题。然后，本文提出了改进的软件体系结构来解决这些问题。更具体地说，我们提出的软件架构试图在不提高Android性能的情况下增强其安全性。
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