This image is a line graph showing the relationship between the cost of changes and the effectiveness of changes. The Y-axis represents the cost of changes and moves up from "less" to "more". The X-axis represents when the changes occur and includes from left to right: "planning", "schematic design", "design development", "construction documentation" and "construction". The first line on the graph, "cost of changes", starts at "less" during the "planning" stage and moves up in a swooping motion as time goes on, reaching the highest point at the end, "construction". The second line on the graph, "effectiveness of changes", starts at "more" in the "planning" stage and down in a swooping motion as time goes on, reaching the lowers point at the end, "construction". The two lines cross each other in the middle at "design development".