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In Praise of Data-Driven Management (AKA "Why You Should be Skeptical of...

Jeff Fry recently linked to a fantastic webcast in Controlled Experiments To Test For Bugs In Our Mental Models. I would highly recommend it to anyone without any reservations.  Ron Kohavi, of...

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What Else Can Software Development and Testing Learn from Manufacturing?...

Tony Baer from Ovum recently wrote a blog post titled: Software Development is like Manufacturing which included the following quotes: “More recently, debate has emerged over yet another refinement of...

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25 Great Quotes for Software Testers

All the quotes below are from the inside cover of Statistics for Experimenters written by George Box, Stuart Hunter, and William G. Hunter (my late father).  The Design of Experiments methods...

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A Fun Presentation on a Powerful Software Test Design Approach

Combinatorial Software Test Design – Beyond Pairwise Testing I put this together to explain combinatorial software test design methods in an accessible manner.  I hope you enjoy it and that, if you do,...

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Maximize Test Coverage Efficiency And Minimize the Number of Tests Needed

Hexawise test coverage graph showing 83.9% coverage in just 20 tests Among the many benefits Hexawise provides is creating a test plan that maximizes test coverage with each new scenario tested. The...

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Hexawise TV

We have created a new site to highlight Hexawise videos on combinatorial, pairwise + orthogonal array software testing. We have posted videos on a variety of software testing topics including:...

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Getting Started with a Test Plan When Faced with a Combinatorial Explosion

A combinatorial explosion is when the configuration settings and user actions and data entered etc. makes it impossible to test everything. The number of tests required to individually test every...

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Design of Experiments is about Learning ASAP and, in Software Testing,...

Design of Experiments in Software Testing - Pairwise and Combinatorial - Hexawise Justin Hunter@Hexawise: Removing inefficiency is good, sure, but it is not why Design of Experiments is so friggin’...

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Lanette Creamer Provides Suggestions on Reducing Test Case Bloat

A client informed us that they had created (and used) approximately 3,500 test cases to test the search functionality of their application.  They had a strong suspicions that (a) they should be able to...

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Which is Better, Orthogonal Array or Pairwise Software Testing?

Many teams are trying to generate unusual powerful and varied sets of software tests by using Design of Experiments-based methods to generate many or most of their tests. The two most popular software...

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High-Profile Obamacare Bug Entirely Avoidable

Recently, the following defect made the news and was one of the most widely-shared articles on the New York Times web site. Here’s what the article, Computer Snag Limits Insurance Penalties on Smokers...

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