diff --git a/specs/README.md b/specs/README.md
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@@ -17,3 +17,8 @@ PDF rendered / from Visio [./pdf/](./pdf).
 ## 1.4. MS Visio
 
 Microsoft Visio Slides [./visio/](./visio).
+
+## 1.5. XML
+
+XML Service Specifications [./xml/](./xml).
+
diff --git a/specs/xml/NLASP-XML-SPECS.md b/specs/xml/NLASP-XML-SPECS.md
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+# 3. Next Level Application Session Protocol (NLASP)
+
+## 3.1. Overview
+
+This specification is currently under development.
+
+Please refer to the [development status page](https://www.der-it-pruefer.de/network/Exemplary-HTTP-Processing-Protocol-Design) for the latest updates.
diff --git a/specs/xml/README.md b/specs/xml/README.md
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+# 1. XML Service Metadata Specifications
+
+This directory contains XML service metadata specifications for the Next Level Application Protocol (NLAP) sub-protocols.
+
+## 1.1. Table of Contents
+
+1. [Next Level Application Metadata Protocol (NLAMP)](./NLAMP-XML-SPECS.md)
+2. [Next Level Application File Protocol (NLAFP)](./NLAFP-XML-SPECS.md)
+3. [Next Level Application Session Protocol (NLASP)](./NLASP-XML-SPECS.md)
+
+## 1.2. Development Status
+
+Ongoing RFP / RFC development status: [Exemplary HTTP Processing Protocol Design](https://www.der-it-pruefer.de/network/Exemplary-HTTP-Processing-Protocol-Design)