No matter what you call it - 
FISHBONE DIAGRAM or
ISHIKAWA DIAGRAM or 
CAUSE AND EFFECT DIAGRAM

is a tool that helps identify, sort, and display possible causes of a specific problem or quality characteristic.  It graphically illustrates the relationship between a given outcome and all the factors that influence the outcome.

RCA-XPress? is an easy to use graphically friendly fishbone diagram drawing tool.   No longer do you need to spend countless hours re-positioning probable causes only to have to redraw after further inquiry discovers additional possible causes.    RCA-XPress does all the work for you and stores your data for later access.