A groundbreaking, example driven, and practical oriented approach to software testing techniques and principles. This book offers a unique approach to learning software application testing, appropriate for students in computer sciences and related fields, quality engineers and software developers.In this book, software test cases are formally defined, software testing techniques are presented, and crucial strategies, principles, and practices one can follow in real life scenarios are discussed. The author tries to present simple and clear concepts, and then systematically advance from basic concepts to testing techniques and principles with abundant examples in order to help the readers to understand the theories, techniques, and principles easily. The common techniques that are most useful in practice based on industry experiences are discussed in this book. The main techniques discussed extensively are equivalence partitions, combinatorial testing, decision table testing, and various structural testing techniques. Basic testing principles and regression testing are covered in part 3 of the book, with two case studies to apply some of the basic techniques and principles discussed in the book. Performance testing is also covered in great details with three real life case studies. The author also defined test cases and types of testing in a new original and fundamental way which are never published anywhere else. This book is targeted mainly to software quality engineers but should be valuable to software developers and other IT personals. The book is written in a textbook style, and there are also numerous exercise problems at the end of most chapters, especially the ones on testing techniques, and it's designed to be used as a reference or a textbook to students who are taking classes in software testing related subjects.