Data model
Videos
A data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to the properties of real-world entities. For instance, a data model may specify t
Example of a Data Structure Diagram
Example of an IDEF1X entity–relationship diagrams used to model IDEF1X itself
NGMDB data model applications
Data-Flow Diagram example
Unstructured data
Videos
Unstructured data is information that either does not have a pre-defined data model or is not organized in a pre-defined manner. Unstructured information is typically text-heavy, but may contain data
Data model
…structure of data; conversely, structured data is data organized according to an explicit data model or data structure. Structured data is in contrast to unstructured data and semi-structured data. The term data model can refer to two distinct but closely related concepts. Sometimes it refers to an abstract formalization…
Unsorted records captured from Nazi Germany at the U.S. National Archives Military Records Center in Alexandria, Virginia, 1956