Symbol Index for diagram

".Headings"

• Agent (Class)
• associated phenomenon (Association)
• collector (Association)
• heading (Association)
• Heading (Class)
• heading for (Association)
• Heading/Essential Type (Generalization Node)
• Phenomenon As Heading (Class)
• Phenomenon Under Heading (Class)
• responsible for assigning (Association)
• responsible for devising (Association)
• Standard Heading (Class)
• Standard Heading Set (Class)
• Subject Phenomenon (Class)