Sometimes it is easier to draw out a diagram to show the task at hand.  Programs like Microsoft Visio are great but come with a steep price tag.  I recently came across an awesome free diagram drawing program called Diagrams Online.  It is a great free web browser based tool that allows you draw diagrams and charts for free,  It is feature packed and web based, it will even work on your smart phone.  It is basically a drag and drop application so there is hardly any learning curve.  Check it out for yourself http//www.draw.io

draw.io