diff --git a/docs/Sequence Diagram.mmd b/docs/Sequence Diagram.mmd
index df86a66..102a809 100644
--- a/docs/Sequence Diagram.mmd	
+++ b/docs/Sequence Diagram.mmd	
@@ -2,15 +2,15 @@
 sequenceDiagram
     autonumber
     actor A as Advisor
-    participant UI as UI (S3/CloudFront)
+    participant UI as UI 
     participant F as Fusion 
-    participant TK as tokenize (on-prem)
-    participant PR as Presidio (private)
-    participant V as Vault (DynamoDB)
+    participant TK as Tokenize (on-prem)
+    participant PR as PII Identification (on-prem)
+    participant V as Vault
     participant RT as AgentCore Runtime + Bedrock (cloud)
     participant GW as AgentCore Gateway (cloud)
-    participant RG as RAG Lambda (on-prem)
-    participant RS as restore (on-prem)
+    participant RG as RAG (on-prem)
+    participant RS as Restore (on-prem)
 
     A->>UI: query with 王小明 + A123456789
     UI->>F: POST {query}