Goal of a needs assessment

To build an effective program, product, or service that describe the group’s needs and “wants.

Many people consider only one solution (a want) and discuss it as a need, when in truth what they really need will not be addressed. Effective questioning can reveal the need behind the want. However it is important to remember that the “want” is often the best solution.
We Consider an analysis known as Need gap Analysis:

Needs are gaps: The steps to be taken in moving from a current state to a desired future-state.Or
The space between what currently exists and what should exist.