To use Figure 5.6 completely in a typology of channel gaps, the channel manager must specify whether demand gaps exist (and of which type) for each particular service output valued in the marketplace. This enables the manager to identify both over availability and under availability of each service output in a single framework. Further, Figure 5.6 is target segment-specific. That is, the figure should be analyzed separately for each segment targeted in the market because a demand gap with one segment may not be a gap at all in another segment (or the gap may go in the opposite direction).