diff --git a/docs/index.rst b/docs/index.rst
index e1715f70a08cb99d6de92166e143647d7e4ee60b..63afeb2c8bff865f66f2bb2dbe77fdec6fb6d8a7 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -20,6 +20,7 @@ The complete solution for managing your research data.
    :caption: Software Developer Documentation
 
    Development Environment </software-developer-documentation/development-environment/index>
+   APIS </software-developer-documentation/apis/index>
 
 User Documentation
 ^^^^^^^^^^^^^^^^^^
@@ -31,7 +32,7 @@ User Documentation
 Software Developer Documentation
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    - :doc:`Development Environment </software-developer-documentation/development-environment/index>`
-   - APIS
+   - :doc:`APIS </software-developer-documentation/apis/index>`
    - Server-side Extensions
    - Client-side Extensions
    - Legacy Server-side Extensions
diff --git a/docs/software-developer-documentation/apis/index.rst b/docs/software-developer-documentation/apis/index.rst
new file mode 100644
index 0000000000000000000000000000000000000000..d44c2972bbc7ce2604cb78248afb1e61f008b650
--- /dev/null
+++ b/docs/software-developer-documentation/apis/index.rst
@@ -0,0 +1,7 @@
+openBIS V3 API
+==============
+
+.. toctree::
+   :maxdepth: 4
+
+   openbis-v3-api
diff --git a/docs/software-developer-documentation/development-environment/architectural-overview.md b/docs/software-developer-documentation/development-environment/architectural-overview.md
new file mode 100644
index 0000000000000000000000000000000000000000..dc65bec12a58b485e18016f359e669698718410b
--- /dev/null
+++ b/docs/software-developer-documentation/development-environment/architectural-overview.md
@@ -0,0 +1,4 @@
+Architectural Overview
+======================
+
+hello world
\ No newline at end of file
diff --git a/docs/software-developer-documentation/development-environment/index.rst b/docs/software-developer-documentation/development-environment/index.rst
index fa51b8f3e262d3beb39c2ce9e7db6965c9f1d402..5e790e68677c58b293929ac041c57b11eacf08a1 100644
--- a/docs/software-developer-documentation/development-environment/index.rst
+++ b/docs/software-developer-documentation/development-environment/index.rst
@@ -4,4 +4,6 @@ Development Environment
 .. toctree::
    :maxdepth: 4
 
-   to-be-written
+   system-requirements
+   architectural-overview
+   installation-and configuration-guide
\ No newline at end of file
diff --git a/docs/software-developer-documentation/development-environment/installation-and configuration-guide.md b/docs/software-developer-documentation/development-environment/installation-and configuration-guide.md
new file mode 100644
index 0000000000000000000000000000000000000000..6cfd30cd4b087f93740f2c4134a6e47bd72564d1
--- /dev/null
+++ b/docs/software-developer-documentation/development-environment/installation-and configuration-guide.md	
@@ -0,0 +1,4 @@
+Installation And Configuration Guide
+====================================
+
+hello world
\ No newline at end of file
diff --git a/docs/software-developer-documentation/development-environment/system-requirements.md b/docs/software-developer-documentation/development-environment/system-requirements.md
new file mode 100644
index 0000000000000000000000000000000000000000..a1deff5b1a8c9c36173da30ec70e70c9f91c0fb9
--- /dev/null
+++ b/docs/software-developer-documentation/development-environment/system-requirements.md
@@ -0,0 +1,4 @@
+System Requirements
+===================
+
+hello world
\ No newline at end of file
diff --git a/docs/software-developer-documentation/development-environment/to-be-written.md b/docs/software-developer-documentation/development-environment/to-be-written.md
deleted file mode 100644
index 630091b1f4cef29ba2571b18b44357025c6c7be7..0000000000000000000000000000000000000000
--- a/docs/software-developer-documentation/development-environment/to-be-written.md
+++ /dev/null
@@ -1,4 +0,0 @@
-To be Written
-=============
-
-hello world
\ No newline at end of file