The Evidence Mapping Workspace is the middle of the three main panels that make up the editor and is the part of the editor where mappings between datastore entities and evidence entities are defined. Double-clicking on a datastore entity in the Datastore Entity Tree opens a tabbed panel for this entity in the Evidence Mapping Workspace. The tab title is set to the name of the datastore entity. The workspace can hold multiple tabs, one representing each datastore entity opened in the workspace. If the user double-clicks on an entity that already has a tab opened, that tab is brought into focus. The entity tabs are where the mappings are defined for the selected entity and any of its child entities.