Analyze secondary data relevant to a community assessment including the three levels of practice (population, systems, and individual/family). Three methods of generating reported data are secondary analysis of data collected by someone else, surveys, and community reconnaissance. In secondary data the community nurse uses previously gathered data. This type of analysis is readily available, has already been collected and reported, and saves time. In addition, the data has been collected and aggregated over a long period of time so the nurse is able to see trends.