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What Is Attribute Agreement Analysis

Dic 20, 2020 by     No Comments    Posted under: Sin categoría

Like any measurement system, the accuracy and accuracy of the database must be understood before the information is used (or at least during use) to make decisions. At first glance, it appears that the apparent starting point begins with an analysis of the attribute (or attribute-Gage-R-R). That may not be a very good idea. Unlike a continuous measurement value, which cannot be accurate (on average), any lack of precision in an attribute measurement system inevitably leads to accuracy problems. If the error coder is not clear or undecided on how to encode a defect, different codes are assigned to several defects of the same type, making the database imprecise. In fact, the vagueness of an attribute measurement system is an important factor in inaccuracies. First, the analyst should determine that there is indeed attribute data. One can assume that the assignment of a code – that is, the division of a code into a category – is a decision that characterizes the error with an attribute. Either a category is correctly assigned to an error, or it is not.

Similarly, the appropriate source location is either attributed to the defect or not. These are “yes” or “no” and “correct allocation” or “wrong allocation” answers. This part is pretty simple. The accuracy of a measurement system is analyzed by segmenting into two main elements: repeatability (the ability of a particular evaluator to assign the same value or attribute several times under the same conditions) and reproducibility (the ability of several assessors to agree on a set of circumstances). In the case of an attribute measurement system, repeatability or reproducibility problems necessarily pose precision problems. In addition, if global accuracy, repeatability and reproducibility are known, distortions can also be detected in situations where decisions are always wrong. Despite these difficulties, performing an attribute analysis on bug tracking systems is not a waste of time. In fact, it is (or may be) an extremely informative, valuable and necessary exercise. The analysis of attributes should only be applied with caution and with a certain focus. However, a bug tracking system is not an ongoing payment. The assigned values are correct or not; There is no (or should not) grey area. If codes, locations and degrees of gravity are defined effectively, there is only one attribute for each of these categories for a particular error.

Repeatability and reproducibility are components of accuracy in an analysis of the attribute measurement system, and it is advisable to first determine if there is a precision problem.

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