1. Assume that your company uses a release methodology for its sales system. The current version is 5.5. Decide whether each of the following changes would justify a version 6.0 release, or be...

1. Assume that your company uses a release methodology for its sales system. The current version is 5.5. Decide whether each of the following changes would justify a version 6.0 release,  or be included in a version 5.6 update: (a) Add a new report, (b) add a web interface, (c) add data validation checks, (d) add an interface to the marketing system, and (e) change the user interface.  2. The four types of IT system maintenance also apply to other industries. Suppose you were in charge of aircraft maintenance for a small airline. What would be a specific example of each type of maintenance?  3. An IT manager assigns programmers and systems analysts to maintenance projects if they have less than two years of experience or if they received an average or lower rating in their last performance evaluation. Do you agree with this practice?  4. What are the most important IT security issues facing companies today? Have these changed in the last five years, and will they continue to change? How should companies prepare themselves for security threats and problems in the future?  5. Many people don’t back up their data until it’s too late. Once they go through a catastrophic loss of all their work, they tend to change their habits. What are some of the better ways to perform personal backups, such as cloud-based services?