What we want our ICA model to do

Accept a collection of inputs

• Run data
• Control parameters

We want to be able to model the progression of balance sheet items.

Use cases are examples of what a user might want to do

Produce a collection of outputs

• Full dump of intermediate calculations and debugging information
• Run-by-run results
• Summary results (eg "risk" values)
• Graphical outputs or data that can be used by a graphics/reporting package