Narrative Development Environment
ledger: holds features and their values script: sets or changes the features of a ledger or their values scenario: combination of ledgers and their scripts world: describes the totality of scenarios or some subset The Narrative Development Environment is the software editor of the Character ledger, the Environmental ledger and the Event script that, together, describe a Scenario state. The output of the Narrative Development Environment is one or more Scenario states of some world.