Testing Applications on the Web: Test Planning for Internet-Based Systems Review

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(More customer reviews)This is good book. If you test web apps, you should buy it.
Hung Nguyen and I are co-authors of another book and good friends. I am not an unbiased reviewer. On the other hand, I wouldn't write this review if I didn't believe every word of it.
Hung's book breaks new ground. It will be useful today, and I believe it will have lasting value and influence.
Once you get beyond the superficial (not unimportant, but much less difficult) issues of usability testing that dominate so many discussions of web testing, you run into the really tough problems of web application testing. Hung Nguyen's book is about those harder problems.
The web-based application runs on a wider range of platforms than any other type of program in history. It doesn't even have control over its presentation layer (the user supplies the browser and the multimedia plugins, and these applications might change any time). What will the application look like on the changed browser? The application probably also relies on third party databases (which can change any time), third party network connections (which can change any time), third party security systems and other access control (which can change any time), etc., etc. Almost anything in this system can change any time. How do you deal with a system that has so many unknowns?
Hung's view is that web application testers must learn more about the technical details of the systems and understand how external variables can interact (and fail) with the application under test.
To help testers learn about the interaction (and testing) of applications with other system components, he wrote the field's first book on grey box testing.
This book has substantial value for what it teaches us about testing on the web. Beyond that, it teaches about thinking clearly and thoroughly when your application interacts in complex ways with other systems. I think his approach will have lasting value and lasting influence long after many of the detailed issues that he describes have been resolved and replaced with new ones.
Along with the original approach, Hung gives a powerful real-world example. He is the president of a company that publishes a web-based bug tracking system. To illustrate the types of tests that you can run and the types of bugs you can find, he opened his records and described real tests, real bugs, and real testing problems. It's a rare treat to see a discussion of testing experience by someone who knows testing, who also intimately knows the software under test, and who isn't constrained in what he can say by a nondisclosure contract.

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