A needs assessment is a systematic process for determining and addressing needs, or "gaps", between current conditions, and desired conditions, or "wants".[1]
Needs assessments can help improve policy or program decisions, individuals, education, training, organizations, communities, or products.[2]
There are three types of need in a needs assessment: perceived need, expressed need and relative need.
Perceived needs are defined by what people think about their needs; each standard changes with each respondent.
Expressed needs are defined by the number of people who have sought help and focuses on circumstances where feelings are translated into action. A major weakness of expressed needs assumes that all people with needs seek help.
Relative needs are concerned with equity and must consider differences in population and social pathology.[3]