In deterministic systems states or activities follow on from each other in completely predictable ways. Future behaviour can be predicted from the current state and operating characteristics.
Business people work hard to develop systems which are useful, organised and predictable.
A prime example is a sales order processing system - essential for smooth processing of sales transactions from initial order to despatch, invoicing and settling of customer accounts. But a business overall is not deterministic. Complexity and the interplay of too many variables can overwhelm the observer and analyst. Nevertheless the use of techniques which evaluate business probabilities are useful and widely used.