Another popular measurement technique is multivariate testing, in which you test many different variations of the same page all at once.

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This could mean that the startup acquires a small group of beta testers and conducts a multivariate run on an application or a feature set.

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The concept of a global ocean observing system grew from the realisation that understanding and forecasting climate change would require a long-term, multivariate ocean observing system.

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For example, Amazon can run a multivariate test in a matter of minutes, where a smaller site with lower traffic volumes might take weeks or months to collect the necessary data for optimization.

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Axa Rosenberg's model involves thousands of multivariate regression calculations, but it all boils down to the same thing that old-fashioned value investors are looking for: an estimate of fair value, which is then compared with current stock prices.

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