There’s a big difference between successful software companies and those shoddy unverified apps you get off the app store:

Quality assurance.

While small-time apps aren’t heavily used, and the creator won’t receive many complaints or bad press if anything breaks, Google and Facebook are used by billions of people worldwide.

If a bug affects 0.01% of the user base in a small app, it’s not worth the energy. If it affects 0.01% for Google and Facebook, that’s thousands of complaints, and possible media scandal to deal with. And we all know what the price of that can be.

So, when it comes to studying quality assurance there’s no better examples than two of the biggest Internet companies in the world.

I’ve deliberately not chosen to give Microsoft the time of day in this post, because I’d say their QA is pretty damn weak for their size.

…However, read on to pick up tips from Facebook and Google on how to make software that doesn’t break down, cost you more money, and cause frustration for your customers.

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Thinking the terms ‘quality control’ and ‘quality assurance’ can be used interchangeably is a common mistake.

Whoever coined those terms did nothing to clarify their differences, but in fact:

• Quality control (QC) makes sure that your product isn’t riddled with bugs.
• Quality assurance (QA) makes sure engineers are following processes to reduce future bugs, and write code more efficiently.

Quality control is something development teams do every day. They squash bugs in the code they wrote, and run tests to catch future errors.

Quality assurance is the overall management of development processes that make sure less testing and QC needs to be done.

At Process Street, we’ve already looked at the wider implications of QC and how to run tests on your software. We’ve even provided you with a bunch of pre-made software development processes you can adjust to your own team.

In this article, I’ll go into an explanation of quality assurance in software teams, and how you can use this information for your own developers.

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