The IT landscape plan is set up based on the Process support map model type. Each map consists of column header and row header objects. The central construct - the PSU (process support unit) - is uniquely defined by these objects in the cell at the relevant intersection. Assignments are also included in these cells. Only authorized users can use IT landscape macros to generate maps and create or modify process support units.
The following figure illustrates the structure of the process support map on the left-hand side. Objects are highlighted in color and thus do not correspond to their representation in the program interface. In the example shown, the process support map (IT landscape view Complete) is made up of column header objects of the Function type, row header objects of the Organizational unit and Location type, and assignment objects of the Application system type. The process support unit is indicated by the red square in the map. In this example, it is defined by the function Create contract and the location Frankfurt. The relationships are highlighted in green in the column and row titles. The A-PLAN assignment was added using the Add process support assignments macro.
The right-hand section of the figure schematically shows the interrelationships and relationships for the process support unit.
The lifecycle of an IT system, such as A-PLAN, relating to an organizational unit or a location, such as Frankfurt, and a process, such as Create contract, is documented at the belongs to process support unit connection between A-PLAN (application system type) and the process support unit (object of the Process support unit type).
If the database is reorganized, all connections between process support units and IT assignments as well as connections to row and column header objects are protected, which means that they are not deleted, even if they exist only at the definition level.
The process support type of a process support unit determines whether and, if so, what support is provided for a combination of row and column header objects.
The status of process support is a property of the relevant assignment and is described in the connection attributes and evaluated in the various IT landscape views in the process of coloring the assignments. For each assignment the status is displayed at the symbol, depending on the IT landscape view. Further information is available in the chapters on IT landscape macros, for example, Change IT landscape view or Lifecycle management.
An assignment, for example, an IT system, is considered to be deleted from the process support map if the Status of process support attribute is not specified at the connection between assignment and process support unit. The occurrences of this assignment are deleted when the maps are updated. This is completely controlled by the macros.
During a reorganization of the database, these connections will be finally deleted if they have already been logically deleted. If occurrences of the assignments still exist at this point, they will be deleted. Once there are no more occurrences, the connection definitions will also be deleted.
Changes to the process support map are automatically logged.