Tags
Tag: Process Sigma
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Pages
The following pages have the tag Process Sigma associated with them. The number of users that have also tagged the page ' Process Sigma ' is in parenthesis.Calculating a Sigma Level from Task Success ( 202 )
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?
How Do You Calculate a Z-Score/ Sigma Level? ( 193 )
The basics of z-scores are discussed plus an example of raw usability data converted into z-scores including three of Nielsen's five usability attributes.
What's a Z-Score and Why Use it in Usability Testing? ( 133 )
This common statistical way of describing data can be used in usability testing to standardize disparate data types to allow easy comparison between products or versions and providing a universal way of assessing quality.
What is an Acceptable Level of Quality for Usability? ( 95 )
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.
What's the 1.5σ Shift and Does it Apply to Software Usability? ( 94 )
Conventional six sigma commonly adds a 1.5 sigma buffer to account for the shifting of a process over time. Does this make sense for software usability?
Questions
The following questions have the tag Process Sigma associated with them. The number of users that have also tagged the question ' Process Sigma ' is in parenthesis.why use 6sigma instead of 5 or 4sigma in calculating process capability. . . ( 5 )
How do you calculate a Z-score with a two-sided specification limit? What is the DPMO?
I have a. . . ( 5 )
What is the difference between a Z-Scores and Process Sigma?. . . ( 5 )