As tools are maturing rapidly model-based testing is gaining wider attention by industry as a potential replacement for suite-based testing approaches. To use model-based testing tools users however specify often quite detailed test models, at level of the implementation to be tested. We present here a first attempt to generate tests from more abstract implementation models, which we call architecture models. With only little refinement these models can be used to validate implementations up to interaction accuracy. Our technique is applied to validate that the camera application software for Nokia Series 60 mobile devices conforms to its UML2 architecture model, employing the model-based testing tool Conformiq Qtronic