diff --git a/SDT/schema2.0/docs/SDT Build System.md b/SDT/schema2.0/docs/SDT Build System.md
index 22e57b5..8ecdd08 100644
--- a/SDT/schema2.0/docs/SDT Build System.md
+++ b/SDT/schema2.0/docs/SDT Build System.md
@@ -27,13 +27,13 @@ After cloning the repository go to the directoy *SDT/schema* and run commands de
### Build the Schema
Running *ant* without any parameter builds the schema definition from the rng-definition [SDT/schema2.0/src/domain.rng](src/domain.rng) and writes it to [SDT/schema2.0/src/domain.xsd](src/domain.xsd)
- $ cd SDT/schema
+ $ cd SDT/schema2.0
$ ant
### Validate SDT Definitions
You can use the build system to validate new SDT definitions or changes made to existing ones by running the following command:
- $ cd SDT/schema
+ $ cd SDT/schema2.0
$ ant validate
The output after a successful validation should look like this:
diff --git a/SDT/schema2.0/etc/domain.rnc b/SDT/schema2.0/etc/domain.rnc
index 01cb268..00fd6f6 100644
--- a/SDT/schema2.0/etc/domain.rnc
+++ b/SDT/schema2.0/etc/domain.rnc
@@ -77,7 +77,12 @@ ModuleDef =
Doc,
Actions?,
Data?,
- Events?
+ Events?,
+ element ModuleRef { ModuleRef }*
+ModuleRef =
+ attribute name { text }?,
+ attribute domain { xsd:IDREF },
+ attribute class { text }
Modules =
element Modules {
element Module { ModuleDef }*
@@ -86,8 +91,10 @@ Actions =
element Actions {
element Action {
attribute name { text },
- attribute type { DataType }?,
+ attribute type { xsd:string }?,
+ attribute rt { xsd:string }?,
Doc,
+ element ModArg { ModuleRef }*,
element Arg {
attribute name { text },
attribute type { DataType },
diff --git a/SDT/schema2.0/src/domain.rng b/SDT/schema2.0/src/domain.rng
index 14ce218..c12bf88 100644
--- a/SDT/schema2.0/src/domain.rng
+++ b/SDT/schema2.0/src/domain.rng
@@ -197,6 +197,22 @@