Documenting the model

1. Open new model. Type ‘Party’ in the Identifier field of the object window. Press tab to go to Title field, type ‘Party problem’. Press tab. In the Description field type, ‘The Party Problem evaluates alternative party locations and their relative value to me.’

2. Click the ‘File’ menu, select ‘save’. Click the Diagram button.

3. Drag Decision node, drop it in the diagram. Type ‘Party Location’ for Title. Drag and drop Chance node into the diagram, type ‘Weather’. Drag and drop Objective node into the diagram, type ‘Utility (value to me)’.