page_title: Data structure diagram
hierarchical_section_title: Data structure diagram
caption_attribution_description: English: Traditional Aggregate Data Structure Diagram (National Soil Information System NASIS, Legend/Map Unit) (11/13/07)
context_page_description: Data structure diagram is a diagram of the conceptual data model which documents the entities and their relationships, as well as the constraints that connect to them.
  The basic graphic notation elements of DSDs are boxes which represent entities. The arrow symbol represents relationships. Data structure diagrams are most useful for documenting complex data entities.
context_section_description: Data structure diagram (DSD) is a diagram of the conceptual data model which documents the entities and their relationships, as well as the constraints that connect to them.
  The basic graphic notation elements of DSDs are boxes which represent entities. The arrow symbol represents relationships. Data structure diagrams are most useful for documenting complex data entities.
caption: Example of a Data Structure Diagram
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