Standardized Technical Architecture Modeling (TAM)  defines and describes a formal specification developed by SAP and shows:

•  which diagram types are allowed to model technical architecture at SAP
• what elements in a certain diagram type are allowed, optional or prohibited
• which extensions of the UML meta model have been made for specific diagram types
• the semantics of newly added elements in diagram types and how those elements can be used

SAP’s standardized technical architecture modeling provides as few models as possible but as many as necessary, whereas the primary requirement of simplicity will be fulfilled.  This standardized modeling does not currently focus on how business processes or business entities within SAP solutions should be modeled. Therefore, the standard is not interfering with any business process oriented or business driven modeling methods. However, necessary alignment with existing methods is in investigation and will be covered in one of the next versions.