Monkey D. Luffy wrotexazbrat explain more please
Visio is a flowcharting program that comes with some versions of Office. It came with mine, but I chose not to install it. Anyhow, there are lots of templates available for things such as organizational charts, audit templates, and family trees. You can also build a database and have the relationships stored in another program such as Access or Excel. You could also substitute Excel or Powerpoint to draw the relationships too. Also there are some templates available for Office--you can find those and other programs here
http://genealogy.about.com/od/free_charts/Free_Genealogy_Charts_Forms_Family_Tree_Chart.htm
Another program you can use is one called Brother's Keeper
http://www.bkwin.com/