| Operation placement is good |
Green system: the system and its hierarchy of systems contains operations that are all correctly placed. Green operation: the operation is correctly placed. |
| Operation placement is wrong | Yellow system: the system has a hierarchy that contains at least one operation that is misplaced. Yellow operation: the operation is correctly placed considering the business rule but one of the child operations in its hierarchy is misplaced. |
| System/operation contains a wrongly placed operation |
Red operation: the operation is misplaced. A system cannot be colored red because the business rule does not consider placement of systems. |