The document describes changes made to a composite usage map showing relationships between different database entities for a furniture company. Specifically, it states that the assumptions behind the original map in Figure 6-1 have changed, with there now being an average of 40 quotations per supplier rather than 50, manufactured parts representing 30% of all parts instead of 40%, and purchased parts representing 75% rather than 70%. It provides instructions to draw a new composite usage map, labeled Figure 6-1a, reflecting these changes.