Use the diagram below to practise using the critical path method on an activity-on-node network. Click on a node to enter values for the earliest start (es), earliest finish (ef), latest start (ls), latest finish (lf) and total float (tf).
You can practise drawing activity-on-node networks here.
You will need a java plugin for this web page to work properly. If you don’t have one, you can get one from Sun Microsystems. Some older plugins won’t work with the java applet on this page.