In highly fragmented and competitive global market the mobile development cycle is of short period. For the vendor's equanimity and overwhelming task to ensure long term success, the APP must be tested over different combination of platforms, operating systems and networks before launching to global. In addition to this, similar to Functional testing the nonfunctional testing like Security testing, usability testing etc. also plays an important role. The effective test planning in Mobile

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... tion testing makes helps to improve the quality of Mobile Apps. Due to increasing numbers of smart phone applications and their advanced features, smart phone has become a primary resource of communication for worldwide business owners, industrialist, office workers, etc. In this paper we use UML diagrams represented in the form of a tree to extract test cases to verify/validate the behavior of mobile objects concerned. A new model based approach for automated generation of test cases in object oriented systems has been presented. The test cases are derived by analyzing the dynamic behavior of the objects due to internal and external stimuli.