Measuring Usability: Quantitative Usability, Statistics and Six-Sigma

Pages

The following pages have the tag Six Sigma associated with them. The number of users that have also tagged the page ' Six Sigma ' is in parenthesis.

The Risks of Discounted Qualitative Studies: ( 214 )
Response to NielsenThe discerning usability analyst should employ a mix of both qualitative and quantitative methods when discovering usability problems. The risks of relying heavily on a qualitative approach can lead to a severe misdiagnosis especially when usability problems are difficult to detect

Calculating a Sigma Level from Task Success ( 196 )
Often the most reported measures of usability is task success. How does task success translate into a quality sigma value that can be compared to other reported sigma values?

What is an Acceptable Level of Quality for Usability? ( 130 )
Is attaining Six Sigma a reasonable or even attainable goal for usability? A product's usability is the sum of several usability measures. Each Relative movement in your sigma value is good predictor of usability improvements.

Why 6σ is Not Limited to Manufacturing Processes ( 90 )
One of the most common concerns about the six sigma methodology is that it cannot apply to something as byzantine as the interactions of humans with software. One of the major tenets of both Six Sigma and Human Factors is that the customer or user determine what's considered "quality."

Questions

The following questions have the tag Six Sigma associated with them. The number of users that have also tagged the question ' Six Sigma ' is in parenthesis.

whwn we say six sigma, does it mean six sigma on either side of the axis or is 3 sigma on either sid. . . ( 5 )

why use 6sigma instead of 5 or 4sigma in calculating process capability. . . ( 6 )

what is the value of 1sigma 2sigma 3sigma 4sigma 5sigma 6sigma. . . ( 6 )