Gap Analysis:

1        The process of determining, documenting, and approving the variance between business requirements and system capabilities.

2        The process of determining and evaluating the variance or distance between two items’ properties being compared.

3        The study of the differences between two different systems or applications, often for the purpose of determining how to get from one state to a new state.

4        A gap is sometimes spoken of as "the space between where we are and where we want to be." Gap analysis is undertaken as a means of bridging that space.