JIRA's querying language, JQL, can be extremely useful. Look at some secrets when it comes to JQL that can help you make more effective use of your own JIRA instance.
Software development is still evolving, so your testing tools should be as well. Upgrade your toolset by checking out the features of these popular frameworks.
A useful metric to track to help keep bugs out of production is the defect escape rate. Learn about it and how to track it to help you reduce the bugs in your own system.