The aim of this diploma thesis is to analyse the actual business architecture at the administration of the university Koblenz-Landau. Another subject matter of the article focuses on the existing application architecture. This architecture is necessary to support the employees work. The Enterprise Architecture will be described by models. They are an important instrument for the exchange of information between different stakeholders. Actual research projects from different universities are represented at the beginning of this elaboration. Subsequent to this, important enterprise architecture frameworks and methods for archiving the tasks are introduced. The concept for the analysis is represented at the outset of the empirical part. After that, a description of the as-is architecture follows. The actual state is modelled by process maps, planning schemes, data flow graphics and a process model. In the next step, an evaluation and identification of weak points is done. Different recommendations to improve the use of information technology at the administration are presented at the end of this degree dissertation. An existing cross-functional process will be analysed, modelled and evaluated. It- about the registration and authorization of projects supported by third-party funds. Finally, a prototype is introduced. The advantages and functionalities of a new system can be shown with this first model. Notices about the next steps, a conclusion and an outlook conclude the work.