diff --git a/Document/content/4.0_Domain_Specific_Testing.md b/Document/content/4.0_Domain_Specific_Testing.md
index bb95197..72f3faa 100644
--- a/Document/content/4.0_Domain_Specific_Testing.md
+++ b/Document/content/4.0_Domain_Specific_Testing.md
@@ -1,6 +1,6 @@
 ## Chapter 4: Domain-Specific Testing
 
-The AI Testing Guide framework is structured around four core layers of a typical AI Architure:
+The AI Testing Guide framework is structured around four core layers of a typical AI Architecture:
 - Application Layer
 - Model Layer
 - Infrastructure Layer
@@ -8,7 +8,7 @@ The AI Testing Guide framework is structured around four core layers of a typica
 
 While the framework integrates these layers comprehensively, it is also possible-and often useful—to focus testing efforts on one specific domain such as Security, Privacy, RAI and Trustworthy AI (TAI). 
 
-It is useful to understand whaich test are related to Secuirty and PRivacy and which to RAI and TAI.
+It is useful to understand which test are related to Security and Privacy and which to RAI and TAI.
 
 We define the following three kind of Input for an AI System: