CASE STUDY QUESTIONS$1.$ What kinds of applications are described here?What business functions do they support? How dothey improve operational efficiency and decisionmaking?$2.$ Identify the problems that businesses in this casestudy solved by using mobile digital devices$\mathrm{.}3.$ What kinds of businesses are most likely to benefitfrom equipping their employees with mobile digi$-$tal devices such as iPhones and iPads?$4.$ One company deploying iPhones has said, $$TheiPhone is not a game changer, it's an industrychanger. It changes the way that you can interactwith your customers$$ and $$with your suppliers.$$Discuss the implications of this statement.