--- a/draft-ietf-dime-erp-02.xml	Fri Aug 28 18:47:51 2009 +0900
+++ b/draft-ietf-dime-erp-02.xml	Fri Sep 11 18:13:57 2009 +0900
@@ -150,11 +150,11 @@
       <t>EAP Re-authentication Protocol (ERP) defines extensions to the
       Extensible Authentication Protocol (EAP) to support efficient
       re-authentication between the EAP peer and an EAP re-authentication
-      server through an EAP/ERP authenticator. This document specifies
+      server through a compatible authenticator. This document specifies
       Diameter support for ERP. It defines a new Diameter ERP application to
-      transport ERP messages between authenticator and ERP server, and a set
-      of new AVPs that can be used to transport the cryptographic material
-      needed by ERP server.</t>
+      transport ERP messages between authenticator and ER server, and a set of
+      new AVPs that can be used to transport the cryptographic material needed
+      by ER server.</t>
     </abstract>
   </front>
 
@@ -193,9 +193,10 @@
       derived from an EMSK, depending on the location of the ER server in home
       or foreign domain.</t>
 
-      <t>We note in this document ERP/DER a Diameter-EAP-Request command with
-      the Application Id set to Diameter ERP application. On the same model,
-      we use ERP/DEA, EAP/DER and EAP/DEA.</t>
+      <t>We use the notation "ERP/DER" in this document to refer to a
+      Diameter-EAP-Request command with its Application Id set to Diameter ERP
+      application. Similarly, we use the "ERP/DEA", "EAP/DER", and
+      "EAP/DEA".</t>
 
       <section title="Requirements Language">
         <t>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
@@ -215,12 +216,12 @@
           home EAP server implicitly authorizes the use of ERP within this
           domain.</t>
 
-          <t>Diameter operations to include this root key inside an
-          appropriate AVP as defined in this document, in an answer message
-          corresponding to a request that contained a request for this
-          material (AVP for the request also defined in this document).</t>
+          <t>Diameter operations needed to include this root key in a response
+          message, when a request for this root key was received in a request
+          message. The two AVP that contain the request for and the root key
+          material are defined in this document.</t>
 
-          <t>(recommanded) Ability to answer a DER message with EAP-Payload
+          <t>(recommended) Ability to answer a DER message with EAP-Payload
           containing an explicit bootstrapping ERP message.</t>
         </list></t>