Axis Terminology

The following table describes each axis in a chart.

Axis	Name	Usage in Bar Chart	Usage in Line Chart	Usage in Pie Chart
X-axis	Category	The horizontal axis, except in a horizontal bar chart, where the X-axis is the vertical axis.	The horizontal axis.	The set of pie slice labels.
Y-axis	Data Values	The vertical axis, except in a horizontal bar chart, where the Y-axis is the horizontal axis along the lower level of the chart.	The vertical axis.	The percentage of the circle that each pie slice occupies, and the corresponding numeric value.
Z-axis	Series	A set of labels in the legend. In the stacked bar or cluster bar charts, each series label corresponds to a bar segment or bar of a color that Siebel CRM displays in each stack or cluster.	A set of labels in the legend. In a line chart, each series label in the legend corresponds to one line.	Siebel CRM charts only the first entry in each series. Do not use a series field with a pie chart.