The SAQs include a number of questions which can be answered using the model. The key conclusion to draw from the model is that any increase in functionality or in the number of users of IS systems carries a serious risk of IS costs increasing as a proportion of revenue unless the revenue earned per person grows rapidly. Fig 4 Technology is inexpensive and is getting more so. The people using it cost the money. Information Payoff , Pg 85, Paul A Strassmann Payoffs are realized by managing the benefits .
Costs are important but secondary.
Information Payoff , Pg 80, Paul A Strassmann Information Systems, The Missing Ingredient . . . Knowledge of how to use the capability. The hidden costs are large The key messages . . . If you are an IS person, be very careful that managers are aware of the full cost of a proposed system. Managers become upset if they discover the hidden costs after the event.