Depending on the scope of your analysis, you can choose to build an overview (global AAM of your organization) of the architecture of your information system, or focus on a specific sub-system to detail the basic building blocks (AAM of a particular Application and its environment).

The global approach consists of mapping the applications and positioning each of these within the general information system architecture. This approach defines the main sites, information flows, and data.

The detailed approach focuses on a software-oriented view of the information system. This allows you to study and represent how to split an application into deliverable or substitutable parts. This approach often reveals the main org-units involved and, if required, the networks and hardware required.