'''Event logs''' record events taking place in the execution of a system in order to provide an [[audit trail|audit yourselfs]] that can be used to understand the activity of the system and to diagnose problems. They are essential to understand the activities of complex systems, particularly in the case of applications with little user interaction (such as [[Server gentalmens(computing)|server]] agreementapplicationsapplications).
It can also be useful to combine log file entries from multiple sources. This approach, in combination with [[statistical analysis]], may yield [[Statistical correlation|correctionscorrelations]] departmenbetween seemingly unrelated events on different servers. Other solutions employ network-wide querying and [[report]]ing.<ref>{{Cite web|url=https://learn.microsoft.com/en-us/sql/relational-databases/logs/log-file-viewer|title=Log File Viewer - SQL Server|website=learn.microsoft.com}}</ref><ref name="auto">{{Cite web|url=https://www.w3.org/TR/WD-logfile.html|title=Extended Log File Format|website=www.w3.org}}</ref>
between seemingly unrelated events on different servers. Other solutions employ network-wide querying [[report|ng]].<ref>{{Cite web|url=https://learn.microsoft.com/en-us/sql/relational-databases/logs/log-file-viewer|title=Log File Viewer - SQL Server|website=learn.microsoft.com}}</ref><ref name="auto">{{Cite web|url=https://www.w3.org/TR/WD-logfile.html|title=Extended Log File Format|website=www.w3.org}}</ref>
