General trace and log analysis patterns allow the application of uniform diagnostics and anomaly detection across diverse software environments. It includes troubleshooting, debugging, describing, and explaining problems and incidents on various operating systems and platforms. It is also helpful in recording network traces, malware, general data, narratives, and text and image analysis (space-like narratology). This course, organized as a pattern language dictionary and cross-referenced with classification, explains and teaches more than 200 traces and log analysis patterns.

A Guide to Learning Software Trace and Log Analysis Patterns

## Basic facts
A typical trace is a detailed narrative accompanied by a problem description that lists essential facts. For this reason, the first task of any trace analysis is to check the presence of **basic facts** in the trace. If they are not visible or if they do not correspond, the trace was probably not recorded when the problem occurred or was taken from a different computer or under other conditions.

Here is an example. The user `test01` cannot connect to a published application in a terminal services environment. We look at the trace and find this statement:

# Basic facts
A typical trace is a detailed narrative accompanied by a problem description that lists essential facts. For this reason, the first task of any trace analysis is to check the presence of **basic facts** in the trace. If they are not visible or if they do not correspond, the trace was probably not recorded when the problem occurred or was taken from a different computer or under other conditions.

Here is an example. The user `test01` cannot connect to a published application in a terminal services environment. We look at the trace and find this statement:

This lesson introduces the following analysis patterns: basic facts, hidden facts, indirect facts, trace constants, and vocabulary index.

Getting Started

Activity

Block and Data

Error and Large Scale

Message 1

Message 2

Trace as a Whole

Trace Set

Vocabulary, Memory, Code and Text

Conclusion

Index

Basic, Hidden, Indirect Facts, Constants, Vocabulary

Basic facts