This page summarises the key terms and common outcomes used in Subject Browser.
A Subject is the core record used to represent:
A namespace is the path that shows where a Subject sits in the structure.
Example:
Manufacturer.PlantA.Production.ToolRoomA namespace path is built from Subject Codes joined with .
It shows the route to a Subject in a given structure.
DAG means directed acyclic graph.
You do not need to know the technical term to use Subject Browser well, but it explains one important idea:
The main Subject classes are:
StructuralVirtualRealA default child is the preferred child for a parent in a specific namespace relationship.
Default belongs to the relationship, not to the Subject globally.
The current filter returned no matching root Subjects.
The selected Subject does not support enquiry actions in the current context, or no suitable Subject is selected.
The selected relationship or closure cannot be removed safely.
Typical reasons include:
The selected Subject or closure cannot be deleted because validation failed.
The selected address is referenced by one or more projects.
Manufacturer.PlantA.ProductionManufacturer.PlantA.Production.MaintenanceManufacturer.PlantA.Production.Stores.PrimaryMaterialsManufacturer.PlantA.Production.Stores.ComponentsManufacturer.PlantA.Production.ToolRoomManufacturer.PlantA.Production.ShopFloorManufacturer.PlantA.Production.Warehouse.GoodsInwardsManufacturer.PlantA.Production.Warehouse.DespatchManufacturer.PlantA.Production.ToolRoom.AndySmithManufacturer.PlantA.Production.Warehouse.Despatch.JoeJonesManufacturer.PlantA.Production.Warehouse.Despatch.AmyJohnson