Specifying indefinite workflow-functions in ad-hoc dialogs

Within a workflow management system, a dialog system is suggested to handle indefinite (vague, imprecise) workflow situations. The Issue Based Information System (IBIS) may be extended by explanatory dialogs, allowing a debate on conclusions, premises and rules. Horizontal and vertical dimensions as well as productive and reductive directions are distinguished in an explanatory dialog in order to schematize and simplify workflow functions.