As noted in the post just prior to this one, these problem solving tools should be used prallel or in conjunction to better enable you to see all parts and relations of a problem cohesively. Great read for leadership and mangement. Problem solving is not random, there is a science to those most effective at the task.
Excerpt: At the heart of the use of system diagrams is the idea of linking factors to show a relationship between them.
For example a company may link the factors of product quality and customer satisfaction. It believes that as the quality of its goods change, so will customers’ happiness with them. We show this as an arrow linking the two factors:
Read full article via Casual Loop & Systems Diagrams – Problem Solving from MindTools.com.