The SEDRIS Data Representation Model (DRM) hierarchy is illustrated by separate sheets or diagrams. Continuation from one illustration to the next is indicated by a "Sheet Number".

The DRM Diagrams are individually viewable on-line at the SEDRIS web site (www.sedris.org), or may be downloaded as a complete set for local use.

• Sheet 1 <Transmittal Root> and <Environment Root>
  
  
• Sheet 2 <Model>
  
  
• Sheet 3 <Geometry>, <Geometry Hierarchy>, <Geometry Model Instance>, & <Property Grid Hook Point>
  
  
• Sheet 4 <Aggregate Geometry>
  
  
• Sheet 5 <Primitive Geometry>
  
  
• Sheet 6 <Data Table> and <Property>
  
  
• Sheet 7 <Geometry Model Instance>, <Feature Model Instance>, and <Transformation>
  
  
• Sheet 8 <Feature> and <Aggregate Feature>
  
  
• Sheet 9 Base classes
  
  
• Sheet 10 <Library>
  
  
• Sheet 11 Topology Hierarchy
  
  
• Sheet 12 <Feature Topology>
  
  
• Sheet 13 <Geometry Topology>
  
  
• Sheet 14 <Colour Tables>
  
  
• Sheet 15 <Location>
  
  
• Sheet 16 <Expressions>
  
  
• Sheet 17 <Control Link>
  
  
• Sheet 18 <Vertex> and <Finite Element Mesh>
  
  
• Sheet 19 <Property Sets>
  
  
• Sheet 20 Time and Metadata
  
  
• Sheet 21 <Light Rendering Properties> and <Light Source>
  
  
• Sheet 22 <Image> and <Sound>
  
  
• Sheet 23 <Universal Superclass>