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.
Qualification
[edit]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.
Statistical data
[edit]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.
Further information
[edit]- Definitive Diagnostic Data Archived 2016-03-04 at the Wayback Machine, 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.