The acquisition of technical data throughout the life of a product is of enormous importance in many industrial areas. For example, the maintenance processes can be designed to be more efficient and derived findings from the operational phase can be used for the development of new generations of products. Mobile systems that support the management of complex technical systems allow greater attention to the operational phases of the lifetime utilizing familiar concepts, such as product lifecycle management (PLM). The requirements and challenges of mobile systems are shown and compared with current trends and concepts.