This article outlines a business and application architecture for policy-making organisations of public administrations. The focus was placed on the derivation of processes and their IT support on the basis of the policy-cycle concept. The derivation of various (modular) process areas allows for the discussion of generic application support in order to achieve the modular structure of e-government architectures for policy-making organisations of public administrations, as opposed to architectures for operational administration processes by administrations. In addition, further issues and spheres of interest to be addressed in the field of architecture management for policy-making organisations of public administrations will be specified. Different architecture variants are evaluated in the context of a potential application of the architecture design for policy-making organisations of public administrations. This raises questions such as how the issue of interoperability between information systems of independent national, state, and municipal administrations is to be tackled. Further research is needed to establish, for example, the level of enterprise architecture and the depth to which integration in this area must or may extend.