3. It must be extended to handle two different currencies, U.S. dollars and Canadian dollars.
Teal Tractors is a rapidly growing company with excellent future prospects. The takeover of the Canadian
tractor company is a positive development, one that may well lead to even greater profits in future years.
But, from the viewpoint of the software division, the purchase of the Canadian company could be
disastrous. Unless the requirements, analysis, and design have been performed with a view to
incorporating possible future extensions, the work involved in adding the Canadian sales regions may be
so great that it might be more effective to discard everything done to date and start from scratch. The
reason is that changing the product at this stage is similar to trying to fix a software product late in its life
cycle. Extending the software to handle aspects specific to the Canadian market, as well as, Canadian
currency, may be equally hard.