Version 2.0 release of System Model Generator, which draws 3.x syntax system definition files
Look in the generated drawsvg_temp\system_model_svg_tmp.xml file:
1. every item (not units) in the hardware layer should have: <... foo="bar" baz="xyzzy">
Nothing else should have foo or baz attributes.
2. MTP Data Providers and all children (not units) should have <... this="comm" that="no">
3. Generic OS Services shold have: <block name="Generic OS Services" levels="physical-abstraction app-libs encoding translation data-services utilities" comment="This package is...">
Nothing else should have a comment attribute