Definitive diagnostic data
Definitive diagnostic data are a specific type of data used in the investigation and diagnosis of IT system problems; transaction performance, fault/error or incorrect output.
To qualify as Definitive Diagnostic Data it must be possible to correlate the data with a user's experience of a problem instance, and for that reason they will typically be time stamped event information. Log and trace records are common sources of Definitive Diagnostic Data.
Generally, statistical data can't be used as it lacks the granularity necessary to directly associate it with a user's experience of a problem instance. However, it can be adapted by reducing the sample interval to a value approaching the response time of the system transaction being performed.
- Definitive Diagnostic Data, S. Kendrick, Sharkfest 2014 Conference
- Offord, Paul (2011). RPR: A Problem Diagnosis Method for IT Professionals. Advance Seven Limited. ISBN:978-1-4478-4443-3.
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