PMP Exam Simulator

A project manager is managing a project to integrate a new software in an accounting system for a huge company. One issue has been discovered by the team while testing the software. The team members are still struggling to resolve the problem. After working on the problem for 5 days, the team have identified several possible causes for the issue, ruled out the less likely reasons and narrowed it down to two main causes. The project manager asked the team to determine if there is any interdependency between the two causes that would need further action. The best tool to use in this situation is: