Architecture levels in IT architecture management

The following architectures are described below:

These are divided into multiple architecture levels. The interrelationships between the architecture levels of the business architecture, application architecture, and technical architecture are shown in more detail below.

Architecture levels in IT architecture management

The application architecture consists of an IT system architecture and an IT components architecture. The technical architecture forms the lowest level of the IT system and IT components architecture.

The process architecture is described in the first three levels through value-added chains. One or more process support maps are assigned to each of these levels. In addition to the processes, the process support maps contain IT systems and enterprise areas along with their locations.

Comparison of IT system and IT components architecture

At the top level, the architecture levels of the IT system architecture are represented by system domains, to which individual IT systems can be assigned. The second level covers IT system management, while the third level is used to describe IT systems in detail. Level four represents the transition from the logical to the physical level, that is, the transition from the type level to the instance level. The infrastructure is described in level five.

In the IT components architecture, all technologies or IT components used in the company are managed. The IT components of the architecture set are available for describing the IT system architecture on the various levels. In analogy to IT systems, at the top level IT components are broken down into logical viewpoints, followed by description level, instance level and infrastructure level.