diff --git a/Applications/ScriptPapers/Images/ScriptPaperFile.tiff b/Applications/ScriptPapers/Images/ScriptPaperFile.tiff
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diff --git a/Documentation/DevelopmentNotes.txt b/Documentation/DevelopmentNotes.txt
new file mode 100644
index 0000000..7620a6e
--- /dev/null
+++ b/Documentation/DevelopmentNotes.txt
@@ -0,0 +1,24 @@
+Development Notes
+-----------------
+
+This document contains information about StepTalk development.
+
+Directory structure
+-------------------
+
+Directory structure needs to be changed to:
+
+/
+    /Documentation
+    /Examples
+    /Source
+        /Applications
+        /Frameworks
+            /StepTalk
+            /ApplicationScripting
+        /Languages
+        /Modules
+        /Tools
+    /Support
+        /ApplicationScripting
+    /Testing
diff --git a/TODO b/TODO
index 3a5728f..16953d7 100644
--- a/TODO
+++ b/TODO
@@ -11,4 +11,4 @@ TODO list
    passive application scripting (without linking) and active app. scripting
    (linking with the framewotk). Give it some reasonable name, becauase that one
    is already used by Apple
-12 Rename STEnvironment to STContext (better name for that object).
+13 Change source directory structure (see DevelopmentNotes.txt in Doumentation)