--- a/ProjectDefinition.st	Fri Aug 24 14:10:42 2018 +0200
+++ b/ProjectDefinition.st	Fri Aug 24 14:14:33 2018 +0200
@@ -8310,6 +8310,9 @@
 !ProjectDefinition class methodsFor:'testing'!
 
 isApplicationDefinition
+    "true iff an application-package (i.e. not a library).
+     Applications have a main and startup for standalon start"
+     
     ^ false
 
     "Created: / 23-08-2006 / 15:17:32 / cg"
@@ -8330,16 +8333,26 @@
 !
 
 isFolderForProjectsDefinition
+    "true iff an 'empty' project which only holds subprojects,
+     but no own classes. Examples are stx, exept, etc."
+
     ^ false
 !
 
 isGUIApplication
+    "true iff a GUI application.
+     Will include startup code to open a display"
+
     ^ false
 
     "Created: / 20-09-2006 / 14:59:49 / cg"
 !
 
 isLibraryDefinition
+    "true iff a library.
+     Will NOT include startup code, and can only be loaded into or
+     linked with an application"
+
     ^ false
 
     "Created: / 23-08-2006 / 15:17:46 / cg"
@@ -8347,7 +8360,7 @@
 !
 
 isPluginDefinition
-    "a plugin for eg. expecco"
+    "true if a plugin for eg. expecco"
 
     ^ false
 !