diff --git a/docs/getting-started/coreconcepts.md b/docs/getting-started/coreconcepts.md
index 70e2244a..157837ce 100644
--- a/docs/getting-started/coreconcepts.md
+++ b/docs/getting-started/coreconcepts.md
@@ -4,8 +4,9 @@ sidebar_position: 2
 
 # Core Concepts
 
-- Operon is a Function as a Service framework for writing transactional workflows
-- Operon provides OAOO guarantees, native tracing & data provenance
+Operon is a Function as a Service framework for transactional workflows.
+Operon workflows group together a set of transactions and provide them with Once and Only Once Execution guarantees.
+This means that opera workflows are guaranteed to run to completion and its composing transactions will be executed only once.
 
 ## Workflows and transactions
 - contexts