Each modeler has a local copy of the NCI Thésaurus. This prevents problems where one modeler may make a change that impacts changes made by another. Once each modeler makes changes to their local copies of the nomenclature (3), a Change Set that captures the editing performed in their local copy is sent back to the workflow manager (4). The changes are analyzed to identify any conflicts that may have arisen in the process. If any corrections are needed, new assignments are.
