How testers can practice bug advocacy with developers

A while ago I answered the following question on’s Ask The Software Quality Expert: Questions & Answers.

What do you do when you find a defect and send it to the developer, but he will not accept that it is a defect? How can we prove that it is a defect?

Here is a clip from my answer:

The Association for Software Testing has a course on bug advocacy you can take for free as a member. In a recent blog post on the topic , Jon Bach provided some links to some of the updated course materials. Look at the slides and what some of the videos in the links he provides. There's a ton of great information in there even if you're just doing self-study.

You can find the full posting here.