This time I prefer report this fundamental topic just with a schema I draw looking at the following IC pages:

• Overview: WebSphere Commerce search interactions
• Tutorial: Extending a search profile to retrieve and display custom data in the storefront

It's the combination of the above documents; the following schema remarks the different interaction WCS runs in order to get Catalog information from SOLR.

I hope you can enjoy!

FIRST PART: from Request to Search Expression

SECOND PART: from Expression to Search Response

THIRD PART: from Search Response to BOD noun