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

## Adjoint message
From analogy with [adjoint thread of activity](https://www.educative.io/courses/guide-learning-software-trace-log-analysis-patterns/region-theatre-adjoint-thread-blackout-braid-group), we introduce the **adjoint message** analysis pattern. Most, if not all, analysis patterns focus on log message text and consider TIDs, PIDs, modules, source files, and functions as their attributes. However, we can choose one of the attributes and consider it as a message in its own right while the original message text can be thought of as another attribute. Then, we can analyze the structure of the trace from the perspective of that newly selected message.

# Adjoint message
From analogy with [adjoint thread of activity](https://www.educative.io/courses/guide-learning-software-trace-log-analysis-patterns/region-theatre-adjoint-thread-blackout-braid-group), we introduce the **adjoint message** analysis pattern. Most, if not all, analysis patterns focus on log message text and consider TIDs, PIDs, modules, source files, and functions as their attributes. However, we can choose one of the attributes and consider it as a message in its own right while the original message text can be thought of as another attribute. Then, we can analyze the structure of the trace from the perspective of that newly selected message.

This lesson introduces the following analysis patterns: adjoint message, anchor messages, causal chains, causal history, and causal messages.

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

Adjoint, Anchor, Causal Chains, History, Messages

Adjoint message