r all OVM data and hierarchical classes. </div></div><div class=CToolTip id="tt3"><div class=CClass><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>virtual class ovm_transaction extends ovm_object</td></tr></table></blockquote>The ovm_transaction class is the root base class for OVM transactions. </div></div><div class=CToolTip id="tt4"><div class=CClass><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0