anchor.diff:  
   This is how the visualization of the parent / child relationship of spans would look like:
   
  -image::parents.png[Parent child relationship]
  +image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-sleuth/master/docs/src/main/asciidoc/images/parents.png[Parent child relationship]
   
   === Purpose
   
  
positive.code: 
  Visualization of what *Span* and *Trace* will look in a system together with the Zipkin annotations:
  
  image::trace-id.png[Trace Info propagation]
  
  Each color of a note signifies a span (7 spans - from *A* to *G*). If you have such information in the note:
  
  
negative.code: http://www.splunk.com/[Splunk] etc. you can order the events that took place. An example of
  Kibana would look like this:
  
  image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-sleuth/master/docs/src/main/asciidoc/images/kibana.png[Log correlation with Kibana]
  
  If you want to use https://www.elastic.co/guide/en/logstash/current/index.html[Logstash] here is the Grok pattern for Logstash:
  
  