Information system experts classify information systems in various ways. Compare and contrast formal information systems as against informal information systems; and use practical examples in...

Information system experts classify information systems in various ways.

Compare and contrast formal information systems as against informal information systems; and use practical examples in business, science or engineering to illustrate your answer?

 Discuss two functional Information Systems that business
organizations often use; and explain how such systems can help users to increase their efficiency and productivity. Use appropriate examples to illustrate your answer?