were statistically analyzed by analysis of variance and Tukey test. Results: The changes in shear bond strengths were not uniform over time. Over the test period, OS, PB, SB, and SS exhibited bond strength stability, however, SS presented low bond strengths on all tested periods. A significant decrease in bond strength was observed for B1, OP, ST, and TQ after the 6-month storage period.

The mobile phone market has become even more competitive, demanding high quality standards. In this context, applications are built as sets of functionalities, called features. Such features are combined in use scenarios of the application. Due to the fact that the features are usually developed in isolation, the tests of their interactions in such scenarios are compromised. In this paper, we present a proposal of specifying feature interaction requirements with use cases; generating a behavioral model from such specification; and a strategy for generating test cases from the behavioral model that aims to extract feature interaction scenarios in such a way that interactions can be tested.

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