Determining System Requirements- MIS

One of the potential problems with gathering information requirements by observing potential system users is that people may change their behavior when observed. What could you do to overcome this potential confounding factor in accurately determining information requirements?

All of the methods of data collection discussed in this chapter take a lot of time. What are some ways analysts can still collect the information they need for systems analysis but also save time? What methods can you think of that would improve upon both traditional and newer techniques?