Information-gathering (5 points). Describe the information-gathering methods that can be used in analyzing requirements. This is about how to gather requirements and not requirements themselves.
The enterprise system development life-cycle is a complex, multi-faceted, iterative process that demands meticulous attention to detail at each successive stage. Before design or implementation can occur, the groundwork must be laid during the analysis phase, in which the analyst, along with the rest of the development team, must gather their list of requirements for the new enterprise system. Several proven techniques exist, which, when used correctly; enable the analyst to achieve a comprehensive software requirements list, both efficiently and accurately.

Existing-system analysis/data collection, stakeholder interviewing, user-level observation, questionnaires/surveys, and Joint Application Development sessions each have unique benefits and drawbacks, though when combined these techniques can collectively produce definitive results when applied effectively. It is important to remember that once initial data collection is completed, the remaining steps are not linear or static in nature. The order of these methods are interchangeable, depending upon the conditions of the project at hand