Structures with historical background in industrial enterprises are often affected by a high degree of non-transparency and complexity. Reasons for this can be seen in heterogeneous processes and IT-environment. The adjustment of a tact-oriented project management system shows a possibility to achieve competitive advantages in the long-term. Other improvement potentials concerning the production process can be claimed by the application of a process-comprehensive Manufacturing Execution System (MES). Therefore an optimized adjustment of production should occur in two steps. On the one hand there has to be a tact-oriented restructuring of the production on the process level. On the other hand a MES solution, implemented on the system level, can operate as a support tool for the production.