Current information technologies facilitate the design of highly customized architectures using complex geometries. In order to be able to realize such architectures a generative design approach including the seamless use of digital design data is essential. The m.any project displays a fully digital workflow from parametric design to production on CNC-machines. An irregular spatial structure generated by algorithms is controlled and manipulated through an especially developed software. In addition to the calculation of the complex geometry, the software also generates necessary construction elements for the realization. These elements are processed on computer controlled fabrication facilities. Based on the many project we illustrate how the common workflow in architectural design changes when fully incorporating digital tools. Instead of a linear sequence of design decisions we introduce the concept of a process matrix which meets the multiple dependencies of a digital workflow. The realization of a physical prototype is presented as the result of the implementation of the matrix concept on an architectural design task.