--- /dev/null
+<?xml version="1.0"?>
+
+<!DOCTYPE work-packages [
+ <!ELEMENT work-packages (work-package+)>
+
+ <!ELEMENT work-package EMPTY>
+ <!ATTLIST work-package
+ file CDATA #REQUIRED>
+]>
+
+<work-packages>
+ <work-package file="project-management"/>
+ <work-package file="requirement-analysis"/>
+ <work-package file="transformation"/>
+ <work-package file="metadata"/>
+ <work-package file="interfaces"/>
+ <work-package file="distribution"/>
+ <work-package file="testing-and-validation"/>
+ <work-package file="information-dissemination-and-exploitation"/>
+</work-packages>