Currently, business models integrated with the IT architecture become a strategic plan to improve services and be more competitive in a globalized world. This work describes how, from the model-based architecture (MDA), such as the CIM, you can obtain the BPMN language software requirements, obtain the PIM component models, then generate the application code and, subsequently, perform functional tests of the product. The legal office of the Sinu University is presented as a case study, in which an integrated and automated business architecture is proposed.