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Software Testing Techniques 2E
Ebooks category
Testing
, eBook Downloads [16895]
Every professional and commercial software development organization spends a great deal of time in the testing and validation of
their software.
The testing process, driven either by legal or financial requirements, can be expensive and may thwart the planned deployment of the
application.
Many studies indicate that the testing process can even take three times as long as the actual coding itself.
Indeed,
software development done under the ISO 9000 or FDA auspices can be extremely time intensive.
This book gives a lengthy and fairly comprehensive
overview of software testing that emphasizes formal models for testing.
In the introduction, the author gives a general overview of the testing process
and the reasons and goals for testing. He carefully distinguishes between testing and debugging, and advocates these as separate activities.
Testing
according to the author is done to find bugs; whereas debugging is done to find the origin of the bugs and fix them.
The author characterizes testing as
either functional or structural.
Functional testing treats the program from the user's point of view, with inputs given to the program, and then the
outputs are checked for conformance to a specified reference.
Structural testing examines how the program is implemented, in terms of programming
style, design, etc. The notion of an oracle is defined as any program or process that specifies the expected outcome of a collection of tests.
The author
clearly identifies and characterizes the different types of tests that arise in development organizations, such as unit testing, regression testing, stress testing, and integration
testing.
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