If you need to prepare Slides in PowerPoint to analyze issues by observing cause and effect relationships then you can download the free Relationship Template for powerpoint 2013 that is available from the official Office website.
This simple relationship template contains a single slide with a relationship diagram in powerpoint that you can use in your business presentations. The slide template is prepared for a dummy case analyzing the causes of low customer satisfaction but you can easily use the same approach to fulfill your needs.
If you need to create more relations on this template you can use the shapes and connectors to add more cause and effect lines to the slide. Additionally, can download other free diagrams and powerpoint templates for presentations.
Download free Relationship Template for powerpoint