What’s Up With WhatsApp?

What’s Up With WhatsApp?

By now we’ve all heard the news that WhatsApp is being bought for a decent chunk of change by Facebook, but what makes this application so unique and desirable? Most

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The 5-Minute Usability Test

Like most testing, usability testing is done both early and often. Fortunately you don’t need to spend a lot of money on a pretentious “usability lab” to address most of

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Metric Driven Development

Metrics are as old as numbers themselves. The first software programs ever written, or more accurately wired, did little more than reveal metrics. Metrics hide in data, and in the

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Scale Right From the Beginning

We build really big software. Big as in 100,000-people-participating-in-the-same-web-conference big or alert-an-entire-state-about-severe-weather big. But few software systems start out that big. Twitter and Netflix had big ideas for sure, but

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