Software Testing Cannot be Exhaustive
When there are bugs on software released to production, software testers often get their integrity questioned. The rationale is, if they tested there shouldn't be bugs in the released software, Is this true?
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Wrapping up the article
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Your software tester is not a superhero with magical powers to predict every possible user interaction. This might sound obvious, but I’ve seen countless executives act shocked when bugs appear in production.
Think about the math for a second.
You have thousands, maybe millions, of users. Each one brings their own unique devices, habits, and creative ways to break your carefully crafted software. Now look at your testing team; it’s probably a fraction of your development team, possibly just one person.
See the problem?
I’ve witnessed companies proudly boasting about their 1:7 tester-to-developer ratio as if it’s some badge of honor. It’s not. It’s a recipe for missed bugs and eventual burnout.
Testing isn’t about catching everything. It never was.
Testing is about risk management. It’s about making informed decisions about what matters most to test thoroughly and what risks you’re willing to accept.
The uncomfortable truth is that your users will always find ways to use your product that you never imagined. They’ll click buttons in sequences your team never considered. They’ll attempt workflows that seemed illogical in your planning meetings.
And guess what? That’s perfectly normal.
When a bug slips through, the knee-jerk reaction is often to blame the tester. “Why didn’t you catch this?” But that question misses the point entirely.
The better questions are:
– What can we learn from this?
– How can we improve our testing strategy?
– Is our testing-to-development ratio realistic?
Every release is a leap of faith. Every new feature is an experiment. The sooner leadership embraces this reality, the healthier your product development cycle becomes.
I’ve seen too many companies crippled by the myth of perfect software. They delay releases, chasing an impossible standard, while competitors move forward, learning and improving with each imperfect release.
Your software will have bugs. Users will break things in ways you never imagined. And that’s not a testing failure; it’s just the nature of software development.
The real question isn’t whether your testers can catch everything. They can’t. The question is: are you ready to learn from what they miss?
Chibuzor Obilom
Software Tester. TechPro. Rubber Duck. Futurist. Comprehensivist. 21st Century Theorist
