The authors state that when replacing a firm's AIS system, 30% of the work takes place during development, and 70% is spent on software modifications and updates. From the e-Activity, predict the effects changes in one industry could have on modifying and updating a system of the business. Include any trickle-down effects the changes would have on the business as well. Provide specific examples to support your response. From a managerial perspective, assess the biggest systems operational challenge. Then, recommend what management can do to overcome the challenge. Support your response with specific examples or evidence.