Advances in the field of cloud computing and the Internet of Things are boosting the 4th industrial revolution. New research and developments foster the emergence of smart services, which augment conventional machinery to become smart cyber-physical systems. The resulting systems are characterized by providing preemptive functionality to automatically react on circumstances and changes in their physical environment. In this paper we sketch our vision of how to automatically provision smart services in manufacturing environments, whereby the paradigms of function and data shipping are specifically considered. To base this approach upon a clear understanding of influences, we point out key challenges in the context of smart services for Industry 4.0.