The final version of DIGGS Schema version 2.0.b was released May, 2016.
Complete Schema: http://diggsml.org/schemas/2.0.b/Complete.xsd
Geotechnical Schema: http://diggsml.org/schemas/2.0.b/Geotechnical.xsd
Kernel Schema: http://diggsml.org/schemas/2.0.b/Kernel.xsd
DIGGS also relies on the following XML schemas
Geography Markup Language (GML) Schemas (reference link)
GML 3.2 Subset Schema: http://diggsml.org/schemas/2.0.b/gml3.2Profile_diggs.xsd
Draft GML 3.3 Subset Schema: http://diggsml.org/schemas/2.0.b/gml3.3Profile_diggs.xsd
Wellsite Information Transfer Standard Markup Language (WITSML) Schemas (reference link)
Data Types: http://diggsml.org/schemas/2.0.b/witsml/1.3.1.1/typ_dataTypes.xsd
Catalog: http://diggsml.org/schemas/2.0.b/witsml/1.3.1.1/typ_catalog.xsd
Measure Type: http://diggsml.org/schemas/2.0.b/witsml/1.3.1.1/typ_measureType.xsd
Quantity Class: http://diggsml.org/schemas/2.0.b/witsml/1.3.1.1/typ_quantityClass.xsd
Base Type: http://diggsml.org/schemas/2.0.b/witsml/1.3.1.1/typ_baseType.xsd
DIGGS Online Dictionary Page
This is a page that allows you to review on the web the entire DIGGS dictionary
http://diggsml.org/schemas/2.0.b/documentation//DiggsDocumentation.html