i need to understand this question , i have to write an essay and i don’t understand it .There are..

i need to understand this question , i have to write an essay and i don't understand it .There are as many ways to use information technology in business as there are business activities to be pursued. Human Resource management has many activities that are designed to support the strategic goals of the organization. Write an essay to explain in some details, any three of these HRM activities and the role of using information systems within these activities. Support your answers with relevant examples