Testing is an important part of a software development. Testing is tightly coupled with development and many teams include not only developers but also testers (or even whole testing department). Because of this tight coupling, it is nice when testers and developers can share a common dictionary. With this goal, I'm posting here my notes on this topic. In this post, I will try to highlight what is testing, how it's connected with quality assurance and quality management. And also will describe seven testing principles and will path you through a fundamental test process.